From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001
From: Yunhong Jiang <yunhong.jiang@intel.com>
Date: Tue, 4 Aug 2015 12:17:53 -0700
Subject: Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
---
 kernel/drivers/gpu/drm/exynos/Kconfig              |   99 +
 kernel/drivers/gpu/drm/exynos/Makefile             |   25 +
 kernel/drivers/gpu/drm/exynos/exynos7_drm_decon.c  |  940 ++++++++
 kernel/drivers/gpu/drm/exynos/exynos_dp_core.c     | 1425 +++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_dp_core.h     |  282 +++
 kernel/drivers/gpu/drm/exynos/exynos_dp_reg.c      | 1263 ++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_dp_reg.h      |  366 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_buf.c     |  186 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h     |   33 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_core.c    |  161 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.c    |  376 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.h    |   42 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c  |  286 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h  |   20 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c     |  353 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_drv.c     |  707 ++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_drv.h     |  349 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_dsi.c     | 1795 ++++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.c |  197 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.h |   23 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_fb.c      |  287 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_fb.h      |   35 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.c   |  360 +++
 kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.h   |   23 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.c    | 1852 ++++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.h    |   23 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_fimd.c    | 1216 ++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.c     | 1587 ++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.h     |   36 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_gem.c     |  651 +++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_gem.h     |  182 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.c     | 1795 ++++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.h     |   24 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.c   |  143 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h   |   69 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.c     | 1822 ++++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.h     |  252 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_plane.c   |  232 ++
 kernel/drivers/gpu/drm/exynos/exynos_drm_plane.h   |   26 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.c |  856 +++++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.h |   19 +
 kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.c    |  621 +++++
 kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.h    |   22 +
 kernel/drivers/gpu/drm/exynos/exynos_hdmi.c        | 2528 ++++++++++++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_mixer.c       | 1318 ++++++++++
 kernel/drivers/gpu/drm/exynos/exynos_mixer.h       |   20 +
 kernel/drivers/gpu/drm/exynos/regs-fimc.h          |  668 ++++++
 kernel/drivers/gpu/drm/exynos/regs-gsc.h           |  284 +++
 kernel/drivers/gpu/drm/exynos/regs-hdmi.h          |  597 +++++
 kernel/drivers/gpu/drm/exynos/regs-mixer.h         |  152 ++
 kernel/drivers/gpu/drm/exynos/regs-rotator.h       |   73 +
 kernel/drivers/gpu/drm/exynos/regs-vp.h            |   91 +
 52 files changed, 26792 insertions(+)
 create mode 100644 kernel/drivers/gpu/drm/exynos/Kconfig
 create mode 100644 kernel/drivers/gpu/drm/exynos/Makefile
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos7_drm_decon.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_dp_core.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_dp_core.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_dp_reg.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_dp_reg.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_buf.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_core.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_drv.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_drv.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_dsi.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fb.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fb.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_fimd.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_gem.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_gem.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_plane.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_plane.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_hdmi.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_mixer.c
 create mode 100644 kernel/drivers/gpu/drm/exynos/exynos_mixer.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-fimc.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-gsc.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-hdmi.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-mixer.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-rotator.h
 create mode 100644 kernel/drivers/gpu/drm/exynos/regs-vp.h

(limited to 'kernel/drivers/gpu/drm/exynos')

diff --git a/kernel/drivers/gpu/drm/exynos/Kconfig b/kernel/drivers/gpu/drm/exynos/Kconfig
new file mode 100644
index 000000000..0a6780367
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/Kconfig
@@ -0,0 +1,99 @@
+config DRM_EXYNOS
+	tristate "DRM Support for Samsung SoC EXYNOS Series"
+	depends on OF && DRM && (PLAT_SAMSUNG || ARCH_MULTIPLATFORM)
+	select DRM_KMS_HELPER
+	select DRM_KMS_FB_HELPER
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	select VIDEOMODE_HELPERS
+	help
+	  Choose this option if you have a Samsung SoC EXYNOS chipset.
+	  If M is selected the module will be called exynosdrm.
+
+config DRM_EXYNOS_IOMMU
+	bool
+	depends on DRM_EXYNOS && EXYNOS_IOMMU && ARM_DMA_USE_IOMMU
+	default y
+
+config DRM_EXYNOS_FIMD
+	bool "Exynos DRM FIMD"
+	depends on DRM_EXYNOS && !FB_S3C
+	select FB_MODE_HELPERS
+	select MFD_SYSCON
+	help
+	  Choose this option if you want to use Exynos FIMD for DRM.
+
+config DRM_EXYNOS7_DECON
+	bool "Exynos DRM DECON"
+	depends on DRM_EXYNOS
+	select FB_MODE_HELPERS
+	help
+	  Choose this option if you want to use Exynos DECON for DRM.
+
+config DRM_EXYNOS_DPI
+	bool "EXYNOS DRM parallel output support"
+	depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON)
+	select DRM_PANEL
+	default n
+	help
+	  This enables support for Exynos parallel output.
+
+config DRM_EXYNOS_DSI
+	bool "EXYNOS DRM MIPI-DSI driver support"
+	depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON)
+	select DRM_MIPI_DSI
+	select DRM_PANEL
+	default n
+	help
+	  This enables support for Exynos MIPI-DSI device.
+
+config DRM_EXYNOS_DP
+	bool "EXYNOS DRM DP driver support"
+	depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON) && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
+	default DRM_EXYNOS
+	select DRM_PANEL
+	help
+	  This enables support for DP device.
+
+config DRM_EXYNOS_HDMI
+	bool "Exynos DRM HDMI"
+	depends on DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_TV
+	help
+	  Choose this option if you want to use Exynos HDMI for DRM.
+
+config DRM_EXYNOS_VIDI
+	bool "Exynos DRM Virtual Display"
+	depends on DRM_EXYNOS
+	help
+	  Choose this option if you want to use Exynos VIDI for DRM.
+
+config DRM_EXYNOS_G2D
+	bool "Exynos DRM G2D"
+	depends on DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_G2D
+	help
+	  Choose this option if you want to use Exynos G2D for DRM.
+
+config DRM_EXYNOS_IPP
+	bool "Exynos DRM IPP"
+	depends on DRM_EXYNOS
+	help
+	  Choose this option if you want to use IPP feature for DRM.
+
+config DRM_EXYNOS_FIMC
+	bool "Exynos DRM FIMC"
+	depends on DRM_EXYNOS_IPP && MFD_SYSCON
+	help
+	  Choose this option if you want to use Exynos FIMC for DRM.
+
+config DRM_EXYNOS_ROTATOR
+	bool "Exynos DRM Rotator"
+	depends on DRM_EXYNOS_IPP
+	help
+	  Choose this option if you want to use Exynos Rotator for DRM.
+
+config DRM_EXYNOS_GSC
+	bool "Exynos DRM GSC"
+	depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5 && !ARCH_MULTIPLATFORM
+	help
+	  Choose this option if you want to use Exynos GSC for DRM.
diff --git a/kernel/drivers/gpu/drm/exynos/Makefile b/kernel/drivers/gpu/drm/exynos/Makefile
new file mode 100644
index 000000000..cc90679cf
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/Makefile
@@ -0,0 +1,25 @@
+#
+# Makefile for the drm device driver.  This driver provides support for the
+# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+
+ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/exynos
+exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o \
+		exynos_drm_crtc.o exynos_drm_fbdev.o exynos_drm_fb.o \
+		exynos_drm_buf.o exynos_drm_gem.o exynos_drm_core.o \
+		exynos_drm_plane.o exynos_drm_dmabuf.o
+
+exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD)	+= exynos_drm_fimd.o
+exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON)	+= exynos7_drm_decon.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_DPI)	+= exynos_drm_dpi.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_DSI)	+= exynos_drm_dsi.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_DP)	+= exynos_dp_core.o exynos_dp_reg.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI)	+= exynos_hdmi.o exynos_mixer.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI)	+= exynos_drm_vidi.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_G2D)	+= exynos_drm_g2d.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_IPP)	+= exynos_drm_ipp.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC)	+= exynos_drm_fimc.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR)	+= exynos_drm_rotator.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_GSC)	+= exynos_drm_gsc.o
+
+obj-$(CONFIG_DRM_EXYNOS)		+= exynosdrm.o
diff --git a/kernel/drivers/gpu/drm/exynos/exynos7_drm_decon.c b/kernel/drivers/gpu/drm/exynos/exynos7_drm_decon.c
new file mode 100644
index 000000000..6714e5b19
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos7_drm_decon.c
@@ -0,0 +1,940 @@
+/* drivers/gpu/drm/exynos/exynos7_drm_decon.c
+ *
+ * Copyright (C) 2014 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Akshu Agarwal <akshua@gmail.com>
+ *	Ajay Kumar <ajaykumar.rs@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+#include <video/exynos7_decon.h>
+
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_fbdev.h"
+#include "exynos_drm_iommu.h"
+
+/*
+ * DECON stands for Display and Enhancement controller.
+ */
+
+#define DECON_DEFAULT_FRAMERATE 60
+#define MIN_FB_WIDTH_FOR_16WORD_BURST 128
+
+#define WINDOWS_NR	2
+
+struct decon_context {
+	struct device			*dev;
+	struct drm_device		*drm_dev;
+	struct exynos_drm_crtc		*crtc;
+	struct exynos_drm_plane		planes[WINDOWS_NR];
+	struct clk			*pclk;
+	struct clk			*aclk;
+	struct clk			*eclk;
+	struct clk			*vclk;
+	void __iomem			*regs;
+	unsigned int			default_win;
+	unsigned long			irq_flags;
+	bool				i80_if;
+	bool				suspended;
+	int				pipe;
+	wait_queue_head_t		wait_vsync_queue;
+	atomic_t			wait_vsync_event;
+
+	struct exynos_drm_panel_info panel;
+	struct exynos_drm_display *display;
+};
+
+static const struct of_device_id decon_driver_dt_match[] = {
+	{.compatible = "samsung,exynos7-decon"},
+	{},
+};
+MODULE_DEVICE_TABLE(of, decon_driver_dt_match);
+
+static void decon_wait_for_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct decon_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	atomic_set(&ctx->wait_vsync_event, 1);
+
+	/*
+	 * wait for DECON to signal VSYNC interrupt or return after
+	 * timeout which is set to 50ms (refresh rate of 20).
+	 */
+	if (!wait_event_timeout(ctx->wait_vsync_queue,
+				!atomic_read(&ctx->wait_vsync_event),
+				HZ/20))
+		DRM_DEBUG_KMS("vblank wait timed out.\n");
+}
+
+static void decon_clear_channel(struct decon_context *ctx)
+{
+	unsigned int win, ch_enabled = 0;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	/* Check if any channel is enabled. */
+	for (win = 0; win < WINDOWS_NR; win++) {
+		u32 val = readl(ctx->regs + WINCON(win));
+
+		if (val & WINCONx_ENWIN) {
+			val &= ~WINCONx_ENWIN;
+			writel(val, ctx->regs + WINCON(win));
+			ch_enabled = 1;
+		}
+	}
+
+	/* Wait for vsync, as disable channel takes effect at next vsync */
+	if (ch_enabled) {
+		unsigned int state = ctx->suspended;
+
+		ctx->suspended = 0;
+		decon_wait_for_vblank(ctx->crtc);
+		ctx->suspended = state;
+	}
+}
+
+static int decon_ctx_initialize(struct decon_context *ctx,
+			struct drm_device *drm_dev)
+{
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+
+	ctx->drm_dev = drm_dev;
+	ctx->pipe = priv->pipe++;
+
+	/* attach this sub driver to iommu mapping if supported. */
+	if (is_drm_iommu_supported(ctx->drm_dev)) {
+		int ret;
+
+		/*
+		 * If any channel is already active, iommu will throw
+		 * a PAGE FAULT when enabled. So clear any channel if enabled.
+		 */
+		decon_clear_channel(ctx);
+		ret = drm_iommu_attach_device(ctx->drm_dev, ctx->dev);
+		if (ret) {
+			DRM_ERROR("drm_iommu_attach failed.\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void decon_ctx_remove(struct decon_context *ctx)
+{
+	/* detach this sub driver from iommu mapping if supported. */
+	if (is_drm_iommu_supported(ctx->drm_dev))
+		drm_iommu_detach_device(ctx->drm_dev, ctx->dev);
+}
+
+static u32 decon_calc_clkdiv(struct decon_context *ctx,
+		const struct drm_display_mode *mode)
+{
+	unsigned long ideal_clk = mode->htotal * mode->vtotal * mode->vrefresh;
+	u32 clkdiv;
+
+	/* Find the clock divider value that gets us closest to ideal_clk */
+	clkdiv = DIV_ROUND_UP(clk_get_rate(ctx->vclk), ideal_clk);
+
+	return (clkdiv < 0x100) ? clkdiv : 0xff;
+}
+
+static bool decon_mode_fixup(struct exynos_drm_crtc *crtc,
+		const struct drm_display_mode *mode,
+		struct drm_display_mode *adjusted_mode)
+{
+	if (adjusted_mode->vrefresh == 0)
+		adjusted_mode->vrefresh = DECON_DEFAULT_FRAMERATE;
+
+	return true;
+}
+
+static void decon_commit(struct exynos_drm_crtc *crtc)
+{
+	struct decon_context *ctx = crtc->ctx;
+	struct drm_display_mode *mode = &crtc->base.mode;
+	u32 val, clkdiv;
+
+	if (ctx->suspended)
+		return;
+
+	/* nothing to do if we haven't set the mode yet */
+	if (mode->htotal == 0 || mode->vtotal == 0)
+		return;
+
+	if (!ctx->i80_if) {
+		int vsync_len, vbpd, vfpd, hsync_len, hbpd, hfpd;
+	      /* setup vertical timing values. */
+		vsync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
+		vbpd = mode->crtc_vtotal - mode->crtc_vsync_end;
+		vfpd = mode->crtc_vsync_start - mode->crtc_vdisplay;
+
+		val = VIDTCON0_VBPD(vbpd - 1) | VIDTCON0_VFPD(vfpd - 1);
+		writel(val, ctx->regs + VIDTCON0);
+
+		val = VIDTCON1_VSPW(vsync_len - 1);
+		writel(val, ctx->regs + VIDTCON1);
+
+		/* setup horizontal timing values.  */
+		hsync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
+		hbpd = mode->crtc_htotal - mode->crtc_hsync_end;
+		hfpd = mode->crtc_hsync_start - mode->crtc_hdisplay;
+
+		/* setup horizontal timing values.  */
+		val = VIDTCON2_HBPD(hbpd - 1) | VIDTCON2_HFPD(hfpd - 1);
+		writel(val, ctx->regs + VIDTCON2);
+
+		val = VIDTCON3_HSPW(hsync_len - 1);
+		writel(val, ctx->regs + VIDTCON3);
+	}
+
+	/* setup horizontal and vertical display size. */
+	val = VIDTCON4_LINEVAL(mode->vdisplay - 1) |
+	       VIDTCON4_HOZVAL(mode->hdisplay - 1);
+	writel(val, ctx->regs + VIDTCON4);
+
+	writel(mode->vdisplay - 1, ctx->regs + LINECNT_OP_THRESHOLD);
+
+	/*
+	 * fields of register with prefix '_F' would be updated
+	 * at vsync(same as dma start)
+	 */
+	val = VIDCON0_ENVID | VIDCON0_ENVID_F;
+	writel(val, ctx->regs + VIDCON0);
+
+	clkdiv = decon_calc_clkdiv(ctx, mode);
+	if (clkdiv > 1) {
+		val = VCLKCON1_CLKVAL_NUM_VCLK(clkdiv - 1);
+		writel(val, ctx->regs + VCLKCON1);
+		writel(val, ctx->regs + VCLKCON2);
+	}
+
+	val = readl(ctx->regs + DECON_UPDATE);
+	val |= DECON_UPDATE_STANDALONE_F;
+	writel(val, ctx->regs + DECON_UPDATE);
+}
+
+static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct decon_context *ctx = crtc->ctx;
+	u32 val;
+
+	if (ctx->suspended)
+		return -EPERM;
+
+	if (!test_and_set_bit(0, &ctx->irq_flags)) {
+		val = readl(ctx->regs + VIDINTCON0);
+
+		val |= VIDINTCON0_INT_ENABLE;
+
+		if (!ctx->i80_if) {
+			val |= VIDINTCON0_INT_FRAME;
+			val &= ~VIDINTCON0_FRAMESEL0_MASK;
+			val |= VIDINTCON0_FRAMESEL0_VSYNC;
+		}
+
+		writel(val, ctx->regs + VIDINTCON0);
+	}
+
+	return 0;
+}
+
+static void decon_disable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct decon_context *ctx = crtc->ctx;
+	u32 val;
+
+	if (ctx->suspended)
+		return;
+
+	if (test_and_clear_bit(0, &ctx->irq_flags)) {
+		val = readl(ctx->regs + VIDINTCON0);
+
+		val &= ~VIDINTCON0_INT_ENABLE;
+		if (!ctx->i80_if)
+			val &= ~VIDINTCON0_INT_FRAME;
+
+		writel(val, ctx->regs + VIDINTCON0);
+	}
+}
+
+static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win)
+{
+	struct exynos_drm_plane *plane = &ctx->planes[win];
+	unsigned long val;
+	int padding;
+
+	val = readl(ctx->regs + WINCON(win));
+	val &= ~WINCONx_BPPMODE_MASK;
+
+	switch (plane->pixel_format) {
+	case DRM_FORMAT_RGB565:
+		val |= WINCONx_BPPMODE_16BPP_565;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		val |= WINCONx_BPPMODE_24BPP_xRGB;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_XBGR8888:
+		val |= WINCONx_BPPMODE_24BPP_xBGR;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_RGBX8888:
+		val |= WINCONx_BPPMODE_24BPP_RGBx;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_BGRX8888:
+		val |= WINCONx_BPPMODE_24BPP_BGRx;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_ARGB8888:
+		val |= WINCONx_BPPMODE_32BPP_ARGB | WINCONx_BLD_PIX |
+			WINCONx_ALPHA_SEL;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_ABGR8888:
+		val |= WINCONx_BPPMODE_32BPP_ABGR | WINCONx_BLD_PIX |
+			WINCONx_ALPHA_SEL;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_RGBA8888:
+		val |= WINCONx_BPPMODE_32BPP_RGBA | WINCONx_BLD_PIX |
+			WINCONx_ALPHA_SEL;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_BGRA8888:
+		val |= WINCONx_BPPMODE_32BPP_BGRA | WINCONx_BLD_PIX |
+			WINCONx_ALPHA_SEL;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	default:
+		DRM_DEBUG_KMS("invalid pixel size so using unpacked 24bpp.\n");
+
+		val |= WINCONx_BPPMODE_24BPP_xRGB;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	}
+
+	DRM_DEBUG_KMS("bpp = %d\n", plane->bpp);
+
+	/*
+	 * In case of exynos, setting dma-burst to 16Word causes permanent
+	 * tearing for very small buffers, e.g. cursor buffer. Burst Mode
+	 * switching which is based on plane size is not recommended as
+	 * plane size varies a lot towards the end of the screen and rapid
+	 * movement causes unstable DMA which results into iommu crash/tear.
+	 */
+
+	padding = (plane->pitch / (plane->bpp >> 3)) - plane->fb_width;
+	if (plane->fb_width + padding < MIN_FB_WIDTH_FOR_16WORD_BURST) {
+		val &= ~WINCONx_BURSTLEN_MASK;
+		val |= WINCONx_BURSTLEN_8WORD;
+	}
+
+	writel(val, ctx->regs + WINCON(win));
+}
+
+static void decon_win_set_colkey(struct decon_context *ctx, unsigned int win)
+{
+	unsigned int keycon0 = 0, keycon1 = 0;
+
+	keycon0 = ~(WxKEYCON0_KEYBL_EN | WxKEYCON0_KEYEN_F |
+			WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
+
+	keycon1 = WxKEYCON1_COLVAL(0xffffffff);
+
+	writel(keycon0, ctx->regs + WKEYCON0_BASE(win));
+	writel(keycon1, ctx->regs + WKEYCON1_BASE(win));
+}
+
+/**
+ * shadow_protect_win() - disable updating values from shadow registers at vsync
+ *
+ * @win: window to protect registers for
+ * @protect: 1 to protect (disable updates)
+ */
+static void decon_shadow_protect_win(struct decon_context *ctx,
+				     unsigned int win, bool protect)
+{
+	u32 bits, val;
+
+	bits = SHADOWCON_WINx_PROTECT(win);
+
+	val = readl(ctx->regs + SHADOWCON);
+	if (protect)
+		val |= bits;
+	else
+		val &= ~bits;
+	writel(val, ctx->regs + SHADOWCON);
+}
+
+static void decon_win_commit(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct decon_context *ctx = crtc->ctx;
+	struct drm_display_mode *mode = &crtc->base.mode;
+	struct exynos_drm_plane *plane;
+	int padding;
+	unsigned long val, alpha;
+	unsigned int last_x;
+	unsigned int last_y;
+
+	if (ctx->suspended)
+		return;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+
+	/* If suspended, enable this on resume */
+	if (ctx->suspended) {
+		plane->resume = true;
+		return;
+	}
+
+	/*
+	 * SHADOWCON/PRTCON register is used for enabling timing.
+	 *
+	 * for example, once only width value of a register is set,
+	 * if the dma is started then decon hardware could malfunction so
+	 * with protect window setting, the register fields with prefix '_F'
+	 * wouldn't be updated at vsync also but updated once unprotect window
+	 * is set.
+	 */
+
+	/* protect windows */
+	decon_shadow_protect_win(ctx, win, true);
+
+	/* buffer start address */
+	val = (unsigned long)plane->dma_addr[0];
+	writel(val, ctx->regs + VIDW_BUF_START(win));
+
+	padding = (plane->pitch / (plane->bpp >> 3)) - plane->fb_width;
+
+	/* buffer size */
+	writel(plane->fb_width + padding, ctx->regs + VIDW_WHOLE_X(win));
+	writel(plane->fb_height, ctx->regs + VIDW_WHOLE_Y(win));
+
+	/* offset from the start of the buffer to read */
+	writel(plane->src_x, ctx->regs + VIDW_OFFSET_X(win));
+	writel(plane->src_y, ctx->regs + VIDW_OFFSET_Y(win));
+
+	DRM_DEBUG_KMS("start addr = 0x%lx\n",
+			(unsigned long)val);
+	DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
+			plane->crtc_width, plane->crtc_height);
+
+	/*
+	 * OSD position.
+	 * In case the window layout goes of LCD layout, DECON fails.
+	 */
+	if ((plane->crtc_x + plane->crtc_width) > mode->hdisplay)
+		plane->crtc_x = mode->hdisplay - plane->crtc_width;
+	if ((plane->crtc_y + plane->crtc_height) > mode->vdisplay)
+		plane->crtc_y = mode->vdisplay - plane->crtc_height;
+
+	val = VIDOSDxA_TOPLEFT_X(plane->crtc_x) |
+		VIDOSDxA_TOPLEFT_Y(plane->crtc_y);
+	writel(val, ctx->regs + VIDOSD_A(win));
+
+	last_x = plane->crtc_x + plane->crtc_width;
+	if (last_x)
+		last_x--;
+	last_y = plane->crtc_y + plane->crtc_height;
+	if (last_y)
+		last_y--;
+
+	val = VIDOSDxB_BOTRIGHT_X(last_x) | VIDOSDxB_BOTRIGHT_Y(last_y);
+
+	writel(val, ctx->regs + VIDOSD_B(win));
+
+	DRM_DEBUG_KMS("osd pos: tx = %d, ty = %d, bx = %d, by = %d\n",
+			plane->crtc_x, plane->crtc_y, last_x, last_y);
+
+	/* OSD alpha */
+	alpha = VIDOSDxC_ALPHA0_R_F(0x0) |
+			VIDOSDxC_ALPHA0_G_F(0x0) |
+			VIDOSDxC_ALPHA0_B_F(0x0);
+
+	writel(alpha, ctx->regs + VIDOSD_C(win));
+
+	alpha = VIDOSDxD_ALPHA1_R_F(0xff) |
+			VIDOSDxD_ALPHA1_G_F(0xff) |
+			VIDOSDxD_ALPHA1_B_F(0xff);
+
+	writel(alpha, ctx->regs + VIDOSD_D(win));
+
+	decon_win_set_pixfmt(ctx, win);
+
+	/* hardware window 0 doesn't support color key. */
+	if (win != 0)
+		decon_win_set_colkey(ctx, win);
+
+	/* wincon */
+	val = readl(ctx->regs + WINCON(win));
+	val |= WINCONx_TRIPLE_BUF_MODE;
+	val |= WINCONx_ENWIN;
+	writel(val, ctx->regs + WINCON(win));
+
+	/* Enable DMA channel and unprotect windows */
+	decon_shadow_protect_win(ctx, win, false);
+
+	val = readl(ctx->regs + DECON_UPDATE);
+	val |= DECON_UPDATE_STANDALONE_F;
+	writel(val, ctx->regs + DECON_UPDATE);
+
+	plane->enabled = true;
+}
+
+static void decon_win_disable(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct decon_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+	u32 val;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+
+	if (ctx->suspended) {
+		/* do not resume this window*/
+		plane->resume = false;
+		return;
+	}
+
+	/* protect windows */
+	decon_shadow_protect_win(ctx, win, true);
+
+	/* wincon */
+	val = readl(ctx->regs + WINCON(win));
+	val &= ~WINCONx_ENWIN;
+	writel(val, ctx->regs + WINCON(win));
+
+	/* unprotect windows */
+	decon_shadow_protect_win(ctx, win, false);
+
+	val = readl(ctx->regs + DECON_UPDATE);
+	val |= DECON_UPDATE_STANDALONE_F;
+	writel(val, ctx->regs + DECON_UPDATE);
+
+	plane->enabled = false;
+}
+
+static void decon_window_suspend(struct decon_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->resume = plane->enabled;
+		if (plane->enabled)
+			decon_win_disable(ctx->crtc, i);
+	}
+}
+
+static void decon_window_resume(struct decon_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->enabled = plane->resume;
+		plane->resume = false;
+	}
+}
+
+static void decon_apply(struct decon_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		if (plane->enabled)
+			decon_win_commit(ctx->crtc, i);
+		else
+			decon_win_disable(ctx->crtc, i);
+	}
+
+	decon_commit(ctx->crtc);
+}
+
+static void decon_init(struct decon_context *ctx)
+{
+	u32 val;
+
+	writel(VIDCON0_SWRESET, ctx->regs + VIDCON0);
+
+	val = VIDOUTCON0_DISP_IF_0_ON;
+	if (!ctx->i80_if)
+		val |= VIDOUTCON0_RGBIF;
+	writel(val, ctx->regs + VIDOUTCON0);
+
+	writel(VCLKCON0_CLKVALUP | VCLKCON0_VCLKFREE, ctx->regs + VCLKCON0);
+
+	if (!ctx->i80_if)
+		writel(VIDCON1_VCLK_HOLD, ctx->regs + VIDCON1(0));
+}
+
+static int decon_poweron(struct decon_context *ctx)
+{
+	int ret;
+
+	if (!ctx->suspended)
+		return 0;
+
+	ctx->suspended = false;
+
+	pm_runtime_get_sync(ctx->dev);
+
+	ret = clk_prepare_enable(ctx->pclk);
+	if (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the pclk [%d]\n", ret);
+		goto pclk_err;
+	}
+
+	ret = clk_prepare_enable(ctx->aclk);
+	if (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the aclk [%d]\n", ret);
+		goto aclk_err;
+	}
+
+	ret = clk_prepare_enable(ctx->eclk);
+	if  (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the eclk [%d]\n", ret);
+		goto eclk_err;
+	}
+
+	ret = clk_prepare_enable(ctx->vclk);
+	if  (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the vclk [%d]\n", ret);
+		goto vclk_err;
+	}
+
+	decon_init(ctx);
+
+	/* if vblank was enabled status, enable it again. */
+	if (test_and_clear_bit(0, &ctx->irq_flags)) {
+		ret = decon_enable_vblank(ctx->crtc);
+		if (ret) {
+			DRM_ERROR("Failed to re-enable vblank [%d]\n", ret);
+			goto err;
+		}
+	}
+
+	decon_window_resume(ctx);
+
+	decon_apply(ctx);
+
+	return 0;
+
+err:
+	clk_disable_unprepare(ctx->vclk);
+vclk_err:
+	clk_disable_unprepare(ctx->eclk);
+eclk_err:
+	clk_disable_unprepare(ctx->aclk);
+aclk_err:
+	clk_disable_unprepare(ctx->pclk);
+pclk_err:
+	ctx->suspended = true;
+	return ret;
+}
+
+static int decon_poweroff(struct decon_context *ctx)
+{
+	if (ctx->suspended)
+		return 0;
+
+	/*
+	 * We need to make sure that all windows are disabled before we
+	 * suspend that connector. Otherwise we might try to scan from
+	 * a destroyed buffer later.
+	 */
+	decon_window_suspend(ctx);
+
+	clk_disable_unprepare(ctx->vclk);
+	clk_disable_unprepare(ctx->eclk);
+	clk_disable_unprepare(ctx->aclk);
+	clk_disable_unprepare(ctx->pclk);
+
+	pm_runtime_put_sync(ctx->dev);
+
+	ctx->suspended = true;
+	return 0;
+}
+
+static void decon_dpms(struct exynos_drm_crtc *crtc, int mode)
+{
+	DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		decon_poweron(crtc->ctx);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		decon_poweroff(crtc->ctx);
+		break;
+	default:
+		DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+		break;
+	}
+}
+
+static const struct exynos_drm_crtc_ops decon_crtc_ops = {
+	.dpms = decon_dpms,
+	.mode_fixup = decon_mode_fixup,
+	.commit = decon_commit,
+	.enable_vblank = decon_enable_vblank,
+	.disable_vblank = decon_disable_vblank,
+	.wait_for_vblank = decon_wait_for_vblank,
+	.win_commit = decon_win_commit,
+	.win_disable = decon_win_disable,
+};
+
+
+static irqreturn_t decon_irq_handler(int irq, void *dev_id)
+{
+	struct decon_context *ctx = (struct decon_context *)dev_id;
+	u32 val, clear_bit;
+
+	val = readl(ctx->regs + VIDINTCON1);
+
+	clear_bit = ctx->i80_if ? VIDINTCON1_INT_I80 : VIDINTCON1_INT_FRAME;
+	if (val & clear_bit)
+		writel(clear_bit, ctx->regs + VIDINTCON1);
+
+	/* check the crtc is detached already from encoder */
+	if (ctx->pipe < 0 || !ctx->drm_dev)
+		goto out;
+
+	if (!ctx->i80_if) {
+		drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+		exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
+
+		/* set wait vsync event to zero and wake up queue. */
+		if (atomic_read(&ctx->wait_vsync_event)) {
+			atomic_set(&ctx->wait_vsync_event, 0);
+			wake_up(&ctx->wait_vsync_queue);
+		}
+	}
+out:
+	return IRQ_HANDLED;
+}
+
+static int decon_bind(struct device *dev, struct device *master, void *data)
+{
+	struct decon_context *ctx = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	unsigned int zpos;
+	int ret;
+
+	ret = decon_ctx_initialize(ctx, drm_dev);
+	if (ret) {
+		DRM_ERROR("decon_ctx_initialize failed.\n");
+		return ret;
+	}
+
+	for (zpos = 0; zpos < WINDOWS_NR; zpos++) {
+		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
+					1 << ctx->pipe, type, zpos);
+		if (ret)
+			return ret;
+	}
+
+	exynos_plane = &ctx->planes[ctx->default_win];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD,
+					   &decon_crtc_ops, ctx);
+	if (IS_ERR(ctx->crtc)) {
+		decon_ctx_remove(ctx);
+		return PTR_ERR(ctx->crtc);
+	}
+
+	if (ctx->display)
+		exynos_drm_create_enc_conn(drm_dev, ctx->display);
+
+	return 0;
+
+}
+
+static void decon_unbind(struct device *dev, struct device *master,
+			void *data)
+{
+	struct decon_context *ctx = dev_get_drvdata(dev);
+
+	decon_dpms(ctx->crtc, DRM_MODE_DPMS_OFF);
+
+	if (ctx->display)
+		exynos_dpi_remove(ctx->display);
+
+	decon_ctx_remove(ctx);
+}
+
+static const struct component_ops decon_component_ops = {
+	.bind	= decon_bind,
+	.unbind = decon_unbind,
+};
+
+static int decon_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct decon_context *ctx;
+	struct device_node *i80_if_timings;
+	struct resource *res;
+	int ret;
+
+	if (!dev->of_node)
+		return -ENODEV;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ret = exynos_drm_component_add(dev, EXYNOS_DEVICE_TYPE_CRTC,
+					EXYNOS_DISPLAY_TYPE_LCD);
+	if (ret)
+		return ret;
+
+	ctx->dev = dev;
+	ctx->suspended = true;
+
+	i80_if_timings = of_get_child_by_name(dev->of_node, "i80-if-timings");
+	if (i80_if_timings)
+		ctx->i80_if = true;
+	of_node_put(i80_if_timings);
+
+	ctx->regs = of_iomap(dev->of_node, 0);
+	if (!ctx->regs) {
+		ret = -ENOMEM;
+		goto err_del_component;
+	}
+
+	ctx->pclk = devm_clk_get(dev, "pclk_decon0");
+	if (IS_ERR(ctx->pclk)) {
+		dev_err(dev, "failed to get bus clock pclk\n");
+		ret = PTR_ERR(ctx->pclk);
+		goto err_iounmap;
+	}
+
+	ctx->aclk = devm_clk_get(dev, "aclk_decon0");
+	if (IS_ERR(ctx->aclk)) {
+		dev_err(dev, "failed to get bus clock aclk\n");
+		ret = PTR_ERR(ctx->aclk);
+		goto err_iounmap;
+	}
+
+	ctx->eclk = devm_clk_get(dev, "decon0_eclk");
+	if (IS_ERR(ctx->eclk)) {
+		dev_err(dev, "failed to get eclock\n");
+		ret = PTR_ERR(ctx->eclk);
+		goto err_iounmap;
+	}
+
+	ctx->vclk = devm_clk_get(dev, "decon0_vclk");
+	if (IS_ERR(ctx->vclk)) {
+		dev_err(dev, "failed to get vclock\n");
+		ret = PTR_ERR(ctx->vclk);
+		goto err_iounmap;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   ctx->i80_if ? "lcd_sys" : "vsync");
+	if (!res) {
+		dev_err(dev, "irq request failed.\n");
+		ret = -ENXIO;
+		goto err_iounmap;
+	}
+
+	ret = devm_request_irq(dev, res->start, decon_irq_handler,
+							0, "drm_decon", ctx);
+	if (ret) {
+		dev_err(dev, "irq request failed.\n");
+		goto err_iounmap;
+	}
+
+	init_waitqueue_head(&ctx->wait_vsync_queue);
+	atomic_set(&ctx->wait_vsync_event, 0);
+
+	platform_set_drvdata(pdev, ctx);
+
+	ctx->display = exynos_dpi_probe(dev);
+	if (IS_ERR(ctx->display)) {
+		ret = PTR_ERR(ctx->display);
+		goto err_iounmap;
+	}
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &decon_component_ops);
+	if (ret)
+		goto err_disable_pm_runtime;
+
+	return ret;
+
+err_disable_pm_runtime:
+	pm_runtime_disable(dev);
+
+err_iounmap:
+	iounmap(ctx->regs);
+
+err_del_component:
+	exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CRTC);
+	return ret;
+}
+
+static int decon_remove(struct platform_device *pdev)
+{
+	struct decon_context *ctx = dev_get_drvdata(&pdev->dev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	iounmap(ctx->regs);
+
+	component_del(&pdev->dev, &decon_component_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+
+	return 0;
+}
+
+struct platform_driver decon_driver = {
+	.probe		= decon_probe,
+	.remove		= decon_remove,
+	.driver		= {
+		.name	= "exynos-decon",
+		.of_match_table = decon_driver_dt_match,
+	},
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_dp_core.c b/kernel/drivers/gpu/drm/exynos/exynos_dp_core.c
new file mode 100644
index 000000000..30feb7d06
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -0,0 +1,1425 @@
+/*
+ * Samsung SoC DP (Display Port) interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <linux/gpio.h>
+#include <linux/component.h>
+#include <linux/phy/phy.h>
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
+#include <drm/bridge/ptn3460.h>
+
+#include "exynos_dp_core.h"
+
+#define ctx_from_connector(c)	container_of(c, struct exynos_dp_device, \
+					connector)
+
+static inline struct exynos_drm_crtc *dp_to_crtc(struct exynos_dp_device *dp)
+{
+	return to_exynos_crtc(dp->encoder->crtc);
+}
+
+static inline struct exynos_dp_device *
+display_to_dp(struct exynos_drm_display *d)
+{
+	return container_of(d, struct exynos_dp_device, display);
+}
+
+struct bridge_init {
+	struct i2c_client *client;
+	struct device_node *node;
+};
+
+static void exynos_dp_init_dp(struct exynos_dp_device *dp)
+{
+	exynos_dp_reset(dp);
+
+	exynos_dp_swreset(dp);
+
+	exynos_dp_init_analog_param(dp);
+	exynos_dp_init_interrupt(dp);
+
+	/* SW defined function Normal operation */
+	exynos_dp_enable_sw_function(dp);
+
+	exynos_dp_config_interrupt(dp);
+	exynos_dp_init_analog_func(dp);
+
+	exynos_dp_init_hpd(dp);
+	exynos_dp_init_aux(dp);
+}
+
+static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
+{
+	int timeout_loop = 0;
+
+	while (exynos_dp_get_plug_in_status(dp) != 0) {
+		timeout_loop++;
+		if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+			dev_err(dp->dev, "failed to get hpd plug status\n");
+			return -ETIMEDOUT;
+		}
+		usleep_range(10, 11);
+	}
+
+	return 0;
+}
+
+static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
+{
+	int i;
+	unsigned char sum = 0;
+
+	for (i = 0; i < EDID_BLOCK_LENGTH; i++)
+		sum = sum + edid_data[i];
+
+	return sum;
+}
+
+static int exynos_dp_read_edid(struct exynos_dp_device *dp)
+{
+	unsigned char edid[EDID_BLOCK_LENGTH * 2];
+	unsigned int extend_block = 0;
+	unsigned char sum;
+	unsigned char test_vector;
+	int retval;
+
+	/*
+	 * EDID device address is 0x50.
+	 * However, if necessary, you must have set upper address
+	 * into E-EDID in I2C device, 0x30.
+	 */
+
+	/* Read Extension Flag, Number of 128-byte EDID extension blocks */
+	retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+				EDID_EXTENSION_FLAG,
+				&extend_block);
+	if (retval)
+		return retval;
+
+	if (extend_block > 0) {
+		dev_dbg(dp->dev, "EDID data includes a single extension!\n");
+
+		/* Read EDID data */
+		retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+						EDID_HEADER_PATTERN,
+						EDID_BLOCK_LENGTH,
+						&edid[EDID_HEADER_PATTERN]);
+		if (retval != 0) {
+			dev_err(dp->dev, "EDID Read failed!\n");
+			return -EIO;
+		}
+		sum = exynos_dp_calc_edid_check_sum(edid);
+		if (sum != 0) {
+			dev_err(dp->dev, "EDID bad checksum!\n");
+			return -EIO;
+		}
+
+		/* Read additional EDID data */
+		retval = exynos_dp_read_bytes_from_i2c(dp,
+				I2C_EDID_DEVICE_ADDR,
+				EDID_BLOCK_LENGTH,
+				EDID_BLOCK_LENGTH,
+				&edid[EDID_BLOCK_LENGTH]);
+		if (retval != 0) {
+			dev_err(dp->dev, "EDID Read failed!\n");
+			return -EIO;
+		}
+		sum = exynos_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
+		if (sum != 0) {
+			dev_err(dp->dev, "EDID bad checksum!\n");
+			return -EIO;
+		}
+
+		exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+					&test_vector);
+		if (test_vector & DP_TEST_LINK_EDID_READ) {
+			exynos_dp_write_byte_to_dpcd(dp,
+				DP_TEST_EDID_CHECKSUM,
+				edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
+			exynos_dp_write_byte_to_dpcd(dp,
+				DP_TEST_RESPONSE,
+				DP_TEST_EDID_CHECKSUM_WRITE);
+		}
+	} else {
+		dev_info(dp->dev, "EDID data does not include any extensions.\n");
+
+		/* Read EDID data */
+		retval = exynos_dp_read_bytes_from_i2c(dp,
+				I2C_EDID_DEVICE_ADDR,
+				EDID_HEADER_PATTERN,
+				EDID_BLOCK_LENGTH,
+				&edid[EDID_HEADER_PATTERN]);
+		if (retval != 0) {
+			dev_err(dp->dev, "EDID Read failed!\n");
+			return -EIO;
+		}
+		sum = exynos_dp_calc_edid_check_sum(edid);
+		if (sum != 0) {
+			dev_err(dp->dev, "EDID bad checksum!\n");
+			return -EIO;
+		}
+
+		exynos_dp_read_byte_from_dpcd(dp,
+			DP_TEST_REQUEST,
+			&test_vector);
+		if (test_vector & DP_TEST_LINK_EDID_READ) {
+			exynos_dp_write_byte_to_dpcd(dp,
+				DP_TEST_EDID_CHECKSUM,
+				edid[EDID_CHECKSUM]);
+			exynos_dp_write_byte_to_dpcd(dp,
+				DP_TEST_RESPONSE,
+				DP_TEST_EDID_CHECKSUM_WRITE);
+		}
+	}
+
+	dev_dbg(dp->dev, "EDID Read success!\n");
+	return 0;
+}
+
+static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
+{
+	u8 buf[12];
+	int i;
+	int retval;
+
+	/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
+	retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV,
+				12, buf);
+	if (retval)
+		return retval;
+
+	/* Read EDID */
+	for (i = 0; i < 3; i++) {
+		retval = exynos_dp_read_edid(dp);
+		if (!retval)
+			break;
+	}
+
+	return retval;
+}
+
+static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
+						bool enable)
+{
+	u8 data;
+
+	exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
+
+	if (enable)
+		exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
+			DP_LANE_COUNT_ENHANCED_FRAME_EN |
+			DPCD_LANE_COUNT_SET(data));
+	else
+		exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
+			DPCD_LANE_COUNT_SET(data));
+}
+
+static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
+{
+	u8 data;
+	int retval;
+
+	exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+	retval = DPCD_ENHANCED_FRAME_CAP(data);
+
+	return retval;
+}
+
+static void exynos_dp_set_enhanced_mode(struct exynos_dp_device *dp)
+{
+	u8 data;
+
+	data = exynos_dp_is_enhanced_mode_available(dp);
+	exynos_dp_enable_rx_to_enhanced_mode(dp, data);
+	exynos_dp_enable_enhanced_mode(dp, data);
+}
+
+static void exynos_dp_training_pattern_dis(struct exynos_dp_device *dp)
+{
+	exynos_dp_set_training_pattern(dp, DP_NONE);
+
+	exynos_dp_write_byte_to_dpcd(dp,
+		DP_TRAINING_PATTERN_SET,
+		DP_TRAINING_PATTERN_DISABLE);
+}
+
+static void exynos_dp_set_lane_lane_pre_emphasis(struct exynos_dp_device *dp,
+					int pre_emphasis, int lane)
+{
+	switch (lane) {
+	case 0:
+		exynos_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
+		break;
+	case 1:
+		exynos_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
+		break;
+
+	case 2:
+		exynos_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
+		break;
+
+	case 3:
+		exynos_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
+		break;
+	}
+}
+
+static int exynos_dp_link_start(struct exynos_dp_device *dp)
+{
+	u8 buf[4];
+	int lane, lane_count, pll_tries, retval;
+
+	lane_count = dp->link_train.lane_count;
+
+	dp->link_train.lt_state = CLOCK_RECOVERY;
+	dp->link_train.eq_loop = 0;
+
+	for (lane = 0; lane < lane_count; lane++)
+		dp->link_train.cr_loop[lane] = 0;
+
+	/* Set link rate and count as you want to establish*/
+	exynos_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
+	exynos_dp_set_lane_count(dp, dp->link_train.lane_count);
+
+	/* Setup RX configuration */
+	buf[0] = dp->link_train.link_rate;
+	buf[1] = dp->link_train.lane_count;
+	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET,
+				2, buf);
+	if (retval)
+		return retval;
+
+	/* Set TX pre-emphasis to minimum */
+	for (lane = 0; lane < lane_count; lane++)
+		exynos_dp_set_lane_lane_pre_emphasis(dp,
+			PRE_EMPHASIS_LEVEL_0, lane);
+
+	/* Wait for PLL lock */
+	pll_tries = 0;
+	while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+		if (pll_tries == DP_TIMEOUT_LOOP_COUNT) {
+			dev_err(dp->dev, "Wait for PLL lock timed out\n");
+			return -ETIMEDOUT;
+		}
+
+		pll_tries++;
+		usleep_range(90, 120);
+	}
+
+	/* Set training pattern 1 */
+	exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
+
+	/* Set RX training pattern */
+	retval = exynos_dp_write_byte_to_dpcd(dp,
+			DP_TRAINING_PATTERN_SET,
+			DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1);
+	if (retval)
+		return retval;
+
+	for (lane = 0; lane < lane_count; lane++)
+		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
+			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
+
+	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+			lane_count, buf);
+
+	return retval;
+}
+
+static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
+{
+	int shift = (lane & 1) * 4;
+	u8 link_value = link_status[lane>>1];
+
+	return (link_value >> shift) & 0xf;
+}
+
+static int exynos_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
+{
+	int lane;
+	u8 lane_status;
+
+	for (lane = 0; lane < lane_count; lane++) {
+		lane_status = exynos_dp_get_lane_status(link_status, lane);
+		if ((lane_status & DP_LANE_CR_DONE) == 0)
+			return -EINVAL;
+	}
+	return 0;
+}
+
+static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
+				int lane_count)
+{
+	int lane;
+	u8 lane_status;
+
+	if ((link_align & DP_INTERLANE_ALIGN_DONE) == 0)
+		return -EINVAL;
+
+	for (lane = 0; lane < lane_count; lane++) {
+		lane_status = exynos_dp_get_lane_status(link_status, lane);
+		lane_status &= DP_CHANNEL_EQ_BITS;
+		if (lane_status != DP_CHANNEL_EQ_BITS)
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
+							int lane)
+{
+	int shift = (lane & 1) * 4;
+	u8 link_value = adjust_request[lane>>1];
+
+	return (link_value >> shift) & 0x3;
+}
+
+static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
+					u8 adjust_request[2],
+					int lane)
+{
+	int shift = (lane & 1) * 4;
+	u8 link_value = adjust_request[lane>>1];
+
+	return ((link_value >> shift) & 0xc) >> 2;
+}
+
+static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
+					u8 training_lane_set, int lane)
+{
+	switch (lane) {
+	case 0:
+		exynos_dp_set_lane0_link_training(dp, training_lane_set);
+		break;
+	case 1:
+		exynos_dp_set_lane1_link_training(dp, training_lane_set);
+		break;
+
+	case 2:
+		exynos_dp_set_lane2_link_training(dp, training_lane_set);
+		break;
+
+	case 3:
+		exynos_dp_set_lane3_link_training(dp, training_lane_set);
+		break;
+	}
+}
+
+static unsigned int exynos_dp_get_lane_link_training(
+				struct exynos_dp_device *dp,
+				int lane)
+{
+	u32 reg;
+
+	switch (lane) {
+	case 0:
+		reg = exynos_dp_get_lane0_link_training(dp);
+		break;
+	case 1:
+		reg = exynos_dp_get_lane1_link_training(dp);
+		break;
+	case 2:
+		reg = exynos_dp_get_lane2_link_training(dp);
+		break;
+	case 3:
+		reg = exynos_dp_get_lane3_link_training(dp);
+		break;
+	default:
+		WARN_ON(1);
+		return 0;
+	}
+
+	return reg;
+}
+
+static void exynos_dp_reduce_link_rate(struct exynos_dp_device *dp)
+{
+	exynos_dp_training_pattern_dis(dp);
+	exynos_dp_set_enhanced_mode(dp);
+
+	dp->link_train.lt_state = FAILED;
+}
+
+static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
+					u8 adjust_request[2])
+{
+	int lane, lane_count;
+	u8 voltage_swing, pre_emphasis, training_lane;
+
+	lane_count = dp->link_train.lane_count;
+	for (lane = 0; lane < lane_count; lane++) {
+		voltage_swing = exynos_dp_get_adjust_request_voltage(
+						adjust_request, lane);
+		pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
+						adjust_request, lane);
+		training_lane = DPCD_VOLTAGE_SWING_SET(voltage_swing) |
+				DPCD_PRE_EMPHASIS_SET(pre_emphasis);
+
+		if (voltage_swing == VOLTAGE_LEVEL_3)
+			training_lane |= DP_TRAIN_MAX_SWING_REACHED;
+		if (pre_emphasis == PRE_EMPHASIS_LEVEL_3)
+			training_lane |= DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
+
+		dp->link_train.training_lane[lane] = training_lane;
+	}
+}
+
+static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
+{
+	int lane, lane_count, retval;
+	u8 voltage_swing, pre_emphasis, training_lane;
+	u8 link_status[2], adjust_request[2];
+
+	usleep_range(100, 101);
+
+	lane_count = dp->link_train.lane_count;
+
+	retval =  exynos_dp_read_bytes_from_dpcd(dp,
+			DP_LANE0_1_STATUS, 2, link_status);
+	if (retval)
+		return retval;
+
+	retval =  exynos_dp_read_bytes_from_dpcd(dp,
+			DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+	if (retval)
+		return retval;
+
+	if (exynos_dp_clock_recovery_ok(link_status, lane_count) == 0) {
+		/* set training pattern 2 for EQ */
+		exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
+
+		retval = exynos_dp_write_byte_to_dpcd(dp,
+				DP_TRAINING_PATTERN_SET,
+				DP_LINK_SCRAMBLING_DISABLE |
+				DP_TRAINING_PATTERN_2);
+		if (retval)
+			return retval;
+
+		dev_info(dp->dev, "Link Training Clock Recovery success\n");
+		dp->link_train.lt_state = EQUALIZER_TRAINING;
+	} else {
+		for (lane = 0; lane < lane_count; lane++) {
+			training_lane = exynos_dp_get_lane_link_training(
+							dp, lane);
+			voltage_swing = exynos_dp_get_adjust_request_voltage(
+							adjust_request, lane);
+			pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
+							adjust_request, lane);
+
+			if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
+					voltage_swing &&
+			    DPCD_PRE_EMPHASIS_GET(training_lane) ==
+					pre_emphasis)
+				dp->link_train.cr_loop[lane]++;
+
+			if (dp->link_train.cr_loop[lane] == MAX_CR_LOOP ||
+			    voltage_swing == VOLTAGE_LEVEL_3 ||
+			    pre_emphasis == PRE_EMPHASIS_LEVEL_3) {
+				dev_err(dp->dev, "CR Max reached (%d,%d,%d)\n",
+					dp->link_train.cr_loop[lane],
+					voltage_swing, pre_emphasis);
+				exynos_dp_reduce_link_rate(dp);
+				return -EIO;
+			}
+		}
+	}
+
+	exynos_dp_get_adjust_training_lane(dp, adjust_request);
+
+	for (lane = 0; lane < lane_count; lane++)
+		exynos_dp_set_lane_link_training(dp,
+			dp->link_train.training_lane[lane], lane);
+
+	retval = exynos_dp_write_bytes_to_dpcd(dp,
+			DP_TRAINING_LANE0_SET, lane_count,
+			dp->link_train.training_lane);
+	if (retval)
+		return retval;
+
+	return retval;
+}
+
+static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
+{
+	int lane, lane_count, retval;
+	u32 reg;
+	u8 link_align, link_status[2], adjust_request[2];
+
+	usleep_range(400, 401);
+
+	lane_count = dp->link_train.lane_count;
+
+	retval = exynos_dp_read_bytes_from_dpcd(dp,
+			DP_LANE0_1_STATUS, 2, link_status);
+	if (retval)
+		return retval;
+
+	if (exynos_dp_clock_recovery_ok(link_status, lane_count)) {
+		exynos_dp_reduce_link_rate(dp);
+		return -EIO;
+	}
+
+	retval = exynos_dp_read_bytes_from_dpcd(dp,
+			DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+	if (retval)
+		return retval;
+
+	retval = exynos_dp_read_byte_from_dpcd(dp,
+			DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
+	if (retval)
+		return retval;
+
+	exynos_dp_get_adjust_training_lane(dp, adjust_request);
+
+	if (!exynos_dp_channel_eq_ok(link_status, link_align, lane_count)) {
+		/* traing pattern Set to Normal */
+		exynos_dp_training_pattern_dis(dp);
+
+		dev_info(dp->dev, "Link Training success!\n");
+
+		exynos_dp_get_link_bandwidth(dp, &reg);
+		dp->link_train.link_rate = reg;
+		dev_dbg(dp->dev, "final bandwidth = %.2x\n",
+			dp->link_train.link_rate);
+
+		exynos_dp_get_lane_count(dp, &reg);
+		dp->link_train.lane_count = reg;
+		dev_dbg(dp->dev, "final lane count = %.2x\n",
+			dp->link_train.lane_count);
+
+		/* set enhanced mode if available */
+		exynos_dp_set_enhanced_mode(dp);
+		dp->link_train.lt_state = FINISHED;
+
+		return 0;
+	}
+
+	/* not all locked */
+	dp->link_train.eq_loop++;
+
+	if (dp->link_train.eq_loop > MAX_EQ_LOOP) {
+		dev_err(dp->dev, "EQ Max loop\n");
+		exynos_dp_reduce_link_rate(dp);
+		return -EIO;
+	}
+
+	for (lane = 0; lane < lane_count; lane++)
+		exynos_dp_set_lane_link_training(dp,
+			dp->link_train.training_lane[lane], lane);
+
+	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+			lane_count, dp->link_train.training_lane);
+
+	return retval;
+}
+
+static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
+					u8 *bandwidth)
+{
+	u8 data;
+
+	/*
+	 * For DP rev.1.1, Maximum link rate of Main Link lanes
+	 * 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
+	 */
+	exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
+	*bandwidth = data;
+}
+
+static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
+					u8 *lane_count)
+{
+	u8 data;
+
+	/*
+	 * For DP rev.1.1, Maximum number of Main Link lanes
+	 * 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
+	 */
+	exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+	*lane_count = DPCD_MAX_LANE_COUNT(data);
+}
+
+static void exynos_dp_init_training(struct exynos_dp_device *dp,
+			enum link_lane_count_type max_lane,
+			enum link_rate_type max_rate)
+{
+	/*
+	 * MACRO_RST must be applied after the PLL_LOCK to avoid
+	 * the DP inter pair skew issue for at least 10 us
+	 */
+	exynos_dp_reset_macro(dp);
+
+	/* Initialize by reading RX's DPCD */
+	exynos_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
+	exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
+
+	if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
+	   (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
+		dev_err(dp->dev, "Rx Max Link Rate is abnormal :%x !\n",
+			dp->link_train.link_rate);
+		dp->link_train.link_rate = LINK_RATE_1_62GBPS;
+	}
+
+	if (dp->link_train.lane_count == 0) {
+		dev_err(dp->dev, "Rx Max Lane count is abnormal :%x !\n",
+			dp->link_train.lane_count);
+		dp->link_train.lane_count = (u8)LANE_COUNT1;
+	}
+
+	/* Setup TX lane count & rate */
+	if (dp->link_train.lane_count > max_lane)
+		dp->link_train.lane_count = max_lane;
+	if (dp->link_train.link_rate > max_rate)
+		dp->link_train.link_rate = max_rate;
+
+	/* All DP analog module power up */
+	exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
+}
+
+static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
+{
+	int retval = 0, training_finished = 0;
+
+	dp->link_train.lt_state = START;
+
+	/* Process here */
+	while (!retval && !training_finished) {
+		switch (dp->link_train.lt_state) {
+		case START:
+			retval = exynos_dp_link_start(dp);
+			if (retval)
+				dev_err(dp->dev, "LT link start failed!\n");
+			break;
+		case CLOCK_RECOVERY:
+			retval = exynos_dp_process_clock_recovery(dp);
+			if (retval)
+				dev_err(dp->dev, "LT CR failed!\n");
+			break;
+		case EQUALIZER_TRAINING:
+			retval = exynos_dp_process_equalizer_training(dp);
+			if (retval)
+				dev_err(dp->dev, "LT EQ failed!\n");
+			break;
+		case FINISHED:
+			training_finished = 1;
+			break;
+		case FAILED:
+			return -EREMOTEIO;
+		}
+	}
+	if (retval)
+		dev_err(dp->dev, "eDP link training failed (%d)\n", retval);
+
+	return retval;
+}
+
+static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
+				u32 count,
+				u32 bwtype)
+{
+	int i;
+	int retval;
+
+	for (i = 0; i < DP_TIMEOUT_LOOP_COUNT; i++) {
+		exynos_dp_init_training(dp, count, bwtype);
+		retval = exynos_dp_sw_link_training(dp);
+		if (retval == 0)
+			break;
+
+		usleep_range(100, 110);
+	}
+
+	return retval;
+}
+
+static int exynos_dp_config_video(struct exynos_dp_device *dp)
+{
+	int retval = 0;
+	int timeout_loop = 0;
+	int done_count = 0;
+
+	exynos_dp_config_video_slave_mode(dp);
+
+	exynos_dp_set_video_color_format(dp);
+
+	if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+		dev_err(dp->dev, "PLL is not locked yet.\n");
+		return -EINVAL;
+	}
+
+	for (;;) {
+		timeout_loop++;
+		if (exynos_dp_is_slave_video_stream_clock_on(dp) == 0)
+			break;
+		if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+			dev_err(dp->dev, "Timeout of video streamclk ok\n");
+			return -ETIMEDOUT;
+		}
+
+		usleep_range(1, 2);
+	}
+
+	/* Set to use the register calculated M/N video */
+	exynos_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
+
+	/* For video bist, Video timing must be generated by register */
+	exynos_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
+
+	/* Disable video mute */
+	exynos_dp_enable_video_mute(dp, 0);
+
+	/* Configure video slave mode */
+	exynos_dp_enable_video_master(dp, 0);
+
+	/* Enable video */
+	exynos_dp_start_video(dp);
+
+	timeout_loop = 0;
+
+	for (;;) {
+		timeout_loop++;
+		if (exynos_dp_is_video_stream_on(dp) == 0) {
+			done_count++;
+			if (done_count > 10)
+				break;
+		} else if (done_count) {
+			done_count = 0;
+		}
+		if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+			dev_err(dp->dev, "Timeout of video streamclk ok\n");
+			return -ETIMEDOUT;
+		}
+
+		usleep_range(1000, 1001);
+	}
+
+	if (retval != 0)
+		dev_err(dp->dev, "Video stream is not detected!\n");
+
+	return retval;
+}
+
+static void exynos_dp_enable_scramble(struct exynos_dp_device *dp, bool enable)
+{
+	u8 data;
+
+	if (enable) {
+		exynos_dp_enable_scrambling(dp);
+
+		exynos_dp_read_byte_from_dpcd(dp,
+			DP_TRAINING_PATTERN_SET,
+			&data);
+		exynos_dp_write_byte_to_dpcd(dp,
+			DP_TRAINING_PATTERN_SET,
+			(u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
+	} else {
+		exynos_dp_disable_scrambling(dp);
+
+		exynos_dp_read_byte_from_dpcd(dp,
+			DP_TRAINING_PATTERN_SET,
+			&data);
+		exynos_dp_write_byte_to_dpcd(dp,
+			DP_TRAINING_PATTERN_SET,
+			(u8)(data | DP_LINK_SCRAMBLING_DISABLE));
+	}
+}
+
+static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
+{
+	struct exynos_dp_device *dp = arg;
+
+	enum dp_irq_type irq_type;
+
+	irq_type = exynos_dp_get_irq_type(dp);
+	switch (irq_type) {
+	case DP_IRQ_TYPE_HP_CABLE_IN:
+		dev_dbg(dp->dev, "Received irq - cable in\n");
+		schedule_work(&dp->hotplug_work);
+		exynos_dp_clear_hotplug_interrupts(dp);
+		break;
+	case DP_IRQ_TYPE_HP_CABLE_OUT:
+		dev_dbg(dp->dev, "Received irq - cable out\n");
+		exynos_dp_clear_hotplug_interrupts(dp);
+		break;
+	case DP_IRQ_TYPE_HP_CHANGE:
+		/*
+		 * We get these change notifications once in a while, but there
+		 * is nothing we can do with them. Just ignore it for now and
+		 * only handle cable changes.
+		 */
+		dev_dbg(dp->dev, "Received irq - hotplug change; ignoring.\n");
+		exynos_dp_clear_hotplug_interrupts(dp);
+		break;
+	default:
+		dev_err(dp->dev, "Received irq - unknown type!\n");
+		break;
+	}
+	return IRQ_HANDLED;
+}
+
+static void exynos_dp_hotplug(struct work_struct *work)
+{
+	struct exynos_dp_device *dp;
+
+	dp = container_of(work, struct exynos_dp_device, hotplug_work);
+
+	if (dp->drm_dev)
+		drm_helper_hpd_irq_event(dp->drm_dev);
+}
+
+static void exynos_dp_commit(struct exynos_drm_display *display)
+{
+	struct exynos_dp_device *dp = display_to_dp(display);
+	int ret;
+
+	/* Keep the panel disabled while we configure video */
+	if (dp->panel) {
+		if (drm_panel_disable(dp->panel))
+			DRM_ERROR("failed to disable the panel\n");
+	}
+
+	ret = exynos_dp_detect_hpd(dp);
+	if (ret) {
+		/* Cable has been disconnected, we're done */
+		return;
+	}
+
+	ret = exynos_dp_handle_edid(dp);
+	if (ret) {
+		dev_err(dp->dev, "unable to handle edid\n");
+		return;
+	}
+
+	ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
+					dp->video_info->link_rate);
+	if (ret) {
+		dev_err(dp->dev, "unable to do link train\n");
+		return;
+	}
+
+	exynos_dp_enable_scramble(dp, 1);
+	exynos_dp_enable_rx_to_enhanced_mode(dp, 1);
+	exynos_dp_enable_enhanced_mode(dp, 1);
+
+	exynos_dp_set_lane_count(dp, dp->video_info->lane_count);
+	exynos_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
+
+	exynos_dp_init_video(dp);
+	ret = exynos_dp_config_video(dp);
+	if (ret)
+		dev_err(dp->dev, "unable to config video\n");
+
+	/* Safe to enable the panel now */
+	if (dp->panel) {
+		if (drm_panel_enable(dp->panel))
+			DRM_ERROR("failed to enable the panel\n");
+	}
+}
+
+static enum drm_connector_status exynos_dp_detect(
+				struct drm_connector *connector, bool force)
+{
+	return connector_status_connected;
+}
+
+static void exynos_dp_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs exynos_dp_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = exynos_dp_detect,
+	.destroy = exynos_dp_connector_destroy,
+};
+
+static int exynos_dp_get_modes(struct drm_connector *connector)
+{
+	struct exynos_dp_device *dp = ctx_from_connector(connector);
+	struct drm_display_mode *mode;
+
+	if (dp->panel)
+		return drm_panel_get_modes(dp->panel);
+
+	mode = drm_mode_create(connector->dev);
+	if (!mode) {
+		DRM_ERROR("failed to create a new display mode.\n");
+		return 0;
+	}
+
+	drm_display_mode_from_videomode(&dp->priv.vm, mode);
+	mode->width_mm = dp->priv.width_mm;
+	mode->height_mm = dp->priv.height_mm;
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	drm_mode_set_name(mode);
+	drm_mode_probed_add(connector, mode);
+
+	return 1;
+}
+
+static struct drm_encoder *exynos_dp_best_encoder(
+			struct drm_connector *connector)
+{
+	struct exynos_dp_device *dp = ctx_from_connector(connector);
+
+	return dp->encoder;
+}
+
+static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
+	.get_modes = exynos_dp_get_modes,
+	.best_encoder = exynos_dp_best_encoder,
+};
+
+/* returns the number of bridges attached */
+static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
+		struct drm_encoder *encoder)
+{
+	int ret;
+
+	encoder->bridge = dp->bridge;
+	dp->bridge->encoder = encoder;
+	ret = drm_bridge_attach(encoder->dev, dp->bridge);
+	if (ret) {
+		DRM_ERROR("Failed to attach bridge to drm\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int exynos_dp_create_connector(struct exynos_drm_display *display,
+				struct drm_encoder *encoder)
+{
+	struct exynos_dp_device *dp = display_to_dp(display);
+	struct drm_connector *connector = &dp->connector;
+	int ret;
+
+	dp->encoder = encoder;
+
+	/* Pre-empt DP connector creation if there's a bridge */
+	if (dp->bridge) {
+		ret = exynos_drm_attach_lcd_bridge(dp, encoder);
+		if (!ret)
+			return 0;
+	}
+
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	ret = drm_connector_init(dp->drm_dev, connector,
+			&exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
+	drm_connector_register(connector);
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	if (dp->panel)
+		ret = drm_panel_attach(dp->panel, &dp->connector);
+
+	return ret;
+}
+
+static void exynos_dp_phy_init(struct exynos_dp_device *dp)
+{
+	if (dp->phy)
+		phy_power_on(dp->phy);
+}
+
+static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
+{
+	if (dp->phy)
+		phy_power_off(dp->phy);
+}
+
+static void exynos_dp_poweron(struct exynos_dp_device *dp)
+{
+	struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
+
+	if (dp->dpms_mode == DRM_MODE_DPMS_ON)
+		return;
+
+	if (dp->panel) {
+		if (drm_panel_prepare(dp->panel)) {
+			DRM_ERROR("failed to setup the panel\n");
+			return;
+		}
+	}
+
+	if (crtc->ops->clock_enable)
+		crtc->ops->clock_enable(dp_to_crtc(dp), true);
+
+	clk_prepare_enable(dp->clock);
+	exynos_dp_phy_init(dp);
+	exynos_dp_init_dp(dp);
+	enable_irq(dp->irq);
+	exynos_dp_commit(&dp->display);
+}
+
+static void exynos_dp_poweroff(struct exynos_dp_device *dp)
+{
+	struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
+
+	if (dp->dpms_mode != DRM_MODE_DPMS_ON)
+		return;
+
+	if (dp->panel) {
+		if (drm_panel_disable(dp->panel)) {
+			DRM_ERROR("failed to disable the panel\n");
+			return;
+		}
+	}
+
+	disable_irq(dp->irq);
+	flush_work(&dp->hotplug_work);
+	exynos_dp_phy_exit(dp);
+	clk_disable_unprepare(dp->clock);
+
+	if (crtc->ops->clock_enable)
+		crtc->ops->clock_enable(dp_to_crtc(dp), false);
+
+	if (dp->panel) {
+		if (drm_panel_unprepare(dp->panel))
+			DRM_ERROR("failed to turnoff the panel\n");
+	}
+}
+
+static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
+{
+	struct exynos_dp_device *dp = display_to_dp(display);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		exynos_dp_poweron(dp);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		exynos_dp_poweroff(dp);
+		break;
+	default:
+		break;
+	}
+	dp->dpms_mode = mode;
+}
+
+static struct exynos_drm_display_ops exynos_dp_display_ops = {
+	.create_connector = exynos_dp_create_connector,
+	.dpms = exynos_dp_dpms,
+	.commit = exynos_dp_commit,
+};
+
+static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
+{
+	struct device_node *dp_node = dev->of_node;
+	struct video_info *dp_video_config;
+
+	dp_video_config = devm_kzalloc(dev,
+				sizeof(*dp_video_config), GFP_KERNEL);
+	if (!dp_video_config)
+		return ERR_PTR(-ENOMEM);
+
+	dp_video_config->h_sync_polarity =
+		of_property_read_bool(dp_node, "hsync-active-high");
+
+	dp_video_config->v_sync_polarity =
+		of_property_read_bool(dp_node, "vsync-active-high");
+
+	dp_video_config->interlaced =
+		of_property_read_bool(dp_node, "interlaced");
+
+	if (of_property_read_u32(dp_node, "samsung,color-space",
+				&dp_video_config->color_space)) {
+		dev_err(dev, "failed to get color-space\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(dp_node, "samsung,dynamic-range",
+				&dp_video_config->dynamic_range)) {
+		dev_err(dev, "failed to get dynamic-range\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
+				&dp_video_config->ycbcr_coeff)) {
+		dev_err(dev, "failed to get ycbcr-coeff\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(dp_node, "samsung,color-depth",
+				&dp_video_config->color_depth)) {
+		dev_err(dev, "failed to get color-depth\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(dp_node, "samsung,link-rate",
+				&dp_video_config->link_rate)) {
+		dev_err(dev, "failed to get link-rate\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(dp_node, "samsung,lane-count",
+				&dp_video_config->lane_count)) {
+		dev_err(dev, "failed to get lane-count\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	return dp_video_config;
+}
+
+static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
+{
+	int ret;
+
+	ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
+			OF_USE_NATIVE_MODE);
+	if (ret) {
+		DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
+{
+	struct exynos_dp_device *dp = dev_get_drvdata(dev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *drm_dev = data;
+	struct resource *res;
+	unsigned int irq_flags;
+	int ret = 0;
+
+	dp->dev = &pdev->dev;
+	dp->dpms_mode = DRM_MODE_DPMS_OFF;
+
+	dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev);
+	if (IS_ERR(dp->video_info))
+		return PTR_ERR(dp->video_info);
+
+	dp->phy = devm_phy_get(dp->dev, "dp");
+	if (IS_ERR(dp->phy)) {
+		dev_err(dp->dev, "no DP phy configured\n");
+		ret = PTR_ERR(dp->phy);
+		if (ret) {
+			/*
+			 * phy itself is not enabled, so we can move forward
+			 * assigning NULL to phy pointer.
+			 */
+			if (ret == -ENOSYS || ret == -ENODEV)
+				dp->phy = NULL;
+			else
+				return ret;
+		}
+	}
+
+	if (!dp->panel && !dp->bridge) {
+		ret = exynos_dp_dt_parse_panel(dp);
+		if (ret)
+			return ret;
+	}
+
+	dp->clock = devm_clk_get(&pdev->dev, "dp");
+	if (IS_ERR(dp->clock)) {
+		dev_err(&pdev->dev, "failed to get clock\n");
+		return PTR_ERR(dp->clock);
+	}
+
+	clk_prepare_enable(dp->clock);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	dp->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dp->reg_base))
+		return PTR_ERR(dp->reg_base);
+
+	dp->hpd_gpio = of_get_named_gpio(dev->of_node, "samsung,hpd-gpio", 0);
+
+	if (gpio_is_valid(dp->hpd_gpio)) {
+		/*
+		 * Set up the hotplug GPIO from the device tree as an interrupt.
+		 * Simply specifying a different interrupt in the device tree
+		 * doesn't work since we handle hotplug rather differently when
+		 * using a GPIO.  We also need the actual GPIO specifier so
+		 * that we can get the current state of the GPIO.
+		 */
+		ret = devm_gpio_request_one(&pdev->dev, dp->hpd_gpio, GPIOF_IN,
+					    "hpd_gpio");
+		if (ret) {
+			dev_err(&pdev->dev, "failed to get hpd gpio\n");
+			return ret;
+		}
+		dp->irq = gpio_to_irq(dp->hpd_gpio);
+		irq_flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
+	} else {
+		dp->hpd_gpio = -ENODEV;
+		dp->irq = platform_get_irq(pdev, 0);
+		irq_flags = 0;
+	}
+
+	if (dp->irq == -ENXIO) {
+		dev_err(&pdev->dev, "failed to get irq\n");
+		return -ENODEV;
+	}
+
+	INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
+
+	exynos_dp_phy_init(dp);
+
+	exynos_dp_init_dp(dp);
+
+	ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
+			irq_flags, "exynos-dp", dp);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to request irq\n");
+		return ret;
+	}
+	disable_irq(dp->irq);
+
+	dp->drm_dev = drm_dev;
+
+	return exynos_drm_create_enc_conn(drm_dev, &dp->display);
+}
+
+static void exynos_dp_unbind(struct device *dev, struct device *master,
+				void *data)
+{
+	struct exynos_dp_device *dp = dev_get_drvdata(dev);
+
+	exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
+}
+
+static const struct component_ops exynos_dp_ops = {
+	.bind	= exynos_dp_bind,
+	.unbind	= exynos_dp_unbind,
+};
+
+static int exynos_dp_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *panel_node, *bridge_node, *endpoint;
+	struct exynos_dp_device *dp;
+	int ret;
+
+	dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
+				GFP_KERNEL);
+	if (!dp)
+		return -ENOMEM;
+
+	dp->display.type = EXYNOS_DISPLAY_TYPE_LCD;
+	dp->display.ops = &exynos_dp_display_ops;
+	platform_set_drvdata(pdev, dp);
+
+	ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR,
+					dp->display.type);
+	if (ret)
+		return ret;
+
+	panel_node = of_parse_phandle(dev->of_node, "panel", 0);
+	if (panel_node) {
+		dp->panel = of_drm_find_panel(panel_node);
+		of_node_put(panel_node);
+		if (!dp->panel)
+			return -EPROBE_DEFER;
+	}
+
+	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	if (endpoint) {
+		bridge_node = of_graph_get_remote_port_parent(endpoint);
+		if (bridge_node) {
+			dp->bridge = of_drm_find_bridge(bridge_node);
+			of_node_put(bridge_node);
+			if (!dp->bridge)
+				return -EPROBE_DEFER;
+		} else
+			return -EPROBE_DEFER;
+	}
+
+	ret = component_add(&pdev->dev, &exynos_dp_ops);
+	if (ret)
+		exynos_drm_component_del(&pdev->dev,
+						EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return ret;
+}
+
+static int exynos_dp_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &exynos_dp_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int exynos_dp_suspend(struct device *dev)
+{
+	struct exynos_dp_device *dp = dev_get_drvdata(dev);
+
+	exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_OFF);
+	return 0;
+}
+
+static int exynos_dp_resume(struct device *dev)
+{
+	struct exynos_dp_device *dp = dev_get_drvdata(dev);
+
+	exynos_dp_dpms(&dp->display, DRM_MODE_DPMS_ON);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops exynos_dp_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
+};
+
+static const struct of_device_id exynos_dp_match[] = {
+	{ .compatible = "samsung,exynos5-dp" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_dp_match);
+
+struct platform_driver dp_driver = {
+	.probe		= exynos_dp_probe,
+	.remove		= exynos_dp_remove,
+	.driver		= {
+		.name	= "exynos-dp",
+		.owner	= THIS_MODULE,
+		.pm	= &exynos_dp_pm_ops,
+		.of_match_table = exynos_dp_match,
+	},
+};
+
+MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
+MODULE_DESCRIPTION("Samsung SoC DP Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_dp_core.h b/kernel/drivers/gpu/drm/exynos/exynos_dp_core.h
new file mode 100644
index 000000000..a4e799679
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -0,0 +1,282 @@
+/*
+ * Header file for Samsung DP (Display Port) interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DP_CORE_H
+#define _EXYNOS_DP_CORE_H
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_dp_helper.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+
+#define DP_TIMEOUT_LOOP_COUNT 100
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 5
+
+enum link_rate_type {
+	LINK_RATE_1_62GBPS = 0x06,
+	LINK_RATE_2_70GBPS = 0x0a
+};
+
+enum link_lane_count_type {
+	LANE_COUNT1 = 1,
+	LANE_COUNT2 = 2,
+	LANE_COUNT4 = 4
+};
+
+enum link_training_state {
+	START,
+	CLOCK_RECOVERY,
+	EQUALIZER_TRAINING,
+	FINISHED,
+	FAILED
+};
+
+enum voltage_swing_level {
+	VOLTAGE_LEVEL_0,
+	VOLTAGE_LEVEL_1,
+	VOLTAGE_LEVEL_2,
+	VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+	PRE_EMPHASIS_LEVEL_0,
+	PRE_EMPHASIS_LEVEL_1,
+	PRE_EMPHASIS_LEVEL_2,
+	PRE_EMPHASIS_LEVEL_3,
+};
+
+enum pattern_set {
+	PRBS7,
+	D10_2,
+	TRAINING_PTN1,
+	TRAINING_PTN2,
+	DP_NONE
+};
+
+enum color_space {
+	COLOR_RGB,
+	COLOR_YCBCR422,
+	COLOR_YCBCR444
+};
+
+enum color_depth {
+	COLOR_6,
+	COLOR_8,
+	COLOR_10,
+	COLOR_12
+};
+
+enum color_coefficient {
+	COLOR_YCBCR601,
+	COLOR_YCBCR709
+};
+
+enum dynamic_range {
+	VESA,
+	CEA
+};
+
+enum pll_status {
+	PLL_UNLOCKED,
+	PLL_LOCKED
+};
+
+enum clock_recovery_m_value_type {
+	CALCULATED_M,
+	REGISTER_M
+};
+
+enum video_timing_recognition_type {
+	VIDEO_TIMING_FROM_CAPTURE,
+	VIDEO_TIMING_FROM_REGISTER
+};
+
+enum analog_power_block {
+	AUX_BLOCK,
+	CH0_BLOCK,
+	CH1_BLOCK,
+	CH2_BLOCK,
+	CH3_BLOCK,
+	ANALOG_TOTAL,
+	POWER_ALL
+};
+
+enum dp_irq_type {
+	DP_IRQ_TYPE_HP_CABLE_IN,
+	DP_IRQ_TYPE_HP_CABLE_OUT,
+	DP_IRQ_TYPE_HP_CHANGE,
+	DP_IRQ_TYPE_UNKNOWN,
+};
+
+struct video_info {
+	char *name;
+
+	bool h_sync_polarity;
+	bool v_sync_polarity;
+	bool interlaced;
+
+	enum color_space color_space;
+	enum dynamic_range dynamic_range;
+	enum color_coefficient ycbcr_coeff;
+	enum color_depth color_depth;
+
+	enum link_rate_type link_rate;
+	enum link_lane_count_type lane_count;
+};
+
+struct link_train {
+	int eq_loop;
+	int cr_loop[4];
+
+	u8 link_rate;
+	u8 lane_count;
+	u8 training_lane[4];
+
+	enum link_training_state lt_state;
+};
+
+struct exynos_dp_device {
+	struct exynos_drm_display display;
+	struct device		*dev;
+	struct drm_device	*drm_dev;
+	struct drm_connector	connector;
+	struct drm_encoder	*encoder;
+	struct drm_panel	*panel;
+	struct drm_bridge	*bridge;
+	struct clk		*clock;
+	unsigned int		irq;
+	void __iomem		*reg_base;
+
+	struct video_info	*video_info;
+	struct link_train	link_train;
+	struct work_struct	hotplug_work;
+	struct phy		*phy;
+	int			dpms_mode;
+	int			hpd_gpio;
+
+	struct exynos_drm_panel_info priv;
+};
+
+/* exynos_dp_reg.c */
+void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable);
+void exynos_dp_stop_video(struct exynos_dp_device *dp);
+void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable);
+void exynos_dp_init_analog_param(struct exynos_dp_device *dp);
+void exynos_dp_init_interrupt(struct exynos_dp_device *dp);
+void exynos_dp_reset(struct exynos_dp_device *dp);
+void exynos_dp_swreset(struct exynos_dp_device *dp);
+void exynos_dp_config_interrupt(struct exynos_dp_device *dp);
+enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp);
+void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable);
+void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
+				enum analog_power_block block,
+				bool enable);
+void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
+void exynos_dp_init_hpd(struct exynos_dp_device *dp);
+enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
+void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp);
+void exynos_dp_reset_aux(struct exynos_dp_device *dp);
+void exynos_dp_init_aux(struct exynos_dp_device *dp);
+int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp);
+void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
+int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
+int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned char data);
+int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned char *data);
+int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char data[]);
+int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char data[]);
+int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr);
+int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr,
+				unsigned int *data);
+int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char edid[]);
+void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype);
+void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype);
+void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
+void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
+void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable);
+void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
+				 enum pattern_set pattern);
+void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level);
+void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level);
+void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level);
+void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level);
+void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
+				u32 training_lane);
+void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
+				u32 training_lane);
+void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
+				u32 training_lane);
+void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
+				u32 training_lane);
+u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
+u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
+u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
+u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp);
+void exynos_dp_reset_macro(struct exynos_dp_device *dp);
+void exynos_dp_init_video(struct exynos_dp_device *dp);
+
+void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
+int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
+void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
+			enum clock_recovery_m_value_type type,
+			u32 m_value,
+			u32 n_value);
+void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type);
+void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable);
+void exynos_dp_start_video(struct exynos_dp_device *dp);
+int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp);
+void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp);
+void exynos_dp_enable_scrambling(struct exynos_dp_device *dp);
+void exynos_dp_disable_scrambling(struct exynos_dp_device *dp);
+
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR			0x50
+#define I2C_E_EDID_DEVICE_ADDR			0x30
+
+#define EDID_BLOCK_LENGTH			0x80
+#define EDID_HEADER_PATTERN			0x00
+#define EDID_EXTENSION_FLAG			0x7e
+#define EDID_CHECKSUM				0x7f
+
+/* DP_MAX_LANE_COUNT */
+#define DPCD_ENHANCED_FRAME_CAP(x)		(((x) >> 7) & 0x1)
+#define DPCD_MAX_LANE_COUNT(x)			((x) & 0x1f)
+
+/* DP_LANE_COUNT_SET */
+#define DPCD_LANE_COUNT_SET(x)			((x) & 0x1f)
+
+/* DP_TRAINING_LANE0_SET */
+#define DPCD_PRE_EMPHASIS_SET(x)		(((x) & 0x3) << 3)
+#define DPCD_PRE_EMPHASIS_GET(x)		(((x) >> 3) & 0x3)
+#define DPCD_VOLTAGE_SWING_SET(x)		(((x) & 0x3) << 0)
+#define DPCD_VOLTAGE_SWING_GET(x)		(((x) >> 0) & 0x3)
+
+#endif /* _EXYNOS_DP_CORE_H */
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.c b/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.c
new file mode 100644
index 000000000..c1f87a2a9
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.c
@@ -0,0 +1,1263 @@
+/*
+ * Samsung DP (Display port) register interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+
+#include "exynos_dp_core.h"
+#include "exynos_dp_reg.h"
+
+#define COMMON_INT_MASK_1	0
+#define COMMON_INT_MASK_2	0
+#define COMMON_INT_MASK_3	0
+#define COMMON_INT_MASK_4	(HOTPLUG_CHG | HPD_LOST | PLUG)
+#define INT_STA_MASK		INT_HPD
+
+void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable)
+{
+	u32 reg;
+
+	if (enable) {
+		reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+		reg |= HDCP_VIDEO_MUTE;
+		writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+		reg &= ~HDCP_VIDEO_MUTE;
+		writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+	}
+}
+
+void exynos_dp_stop_video(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+	reg &= ~VIDEO_EN;
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+}
+
+void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable)
+{
+	u32 reg;
+
+	if (enable)
+		reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
+			LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
+	else
+		reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
+			LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
+
+	writel(reg, dp->reg_base + EXYNOS_DP_LANE_MAP);
+}
+
+void exynos_dp_init_analog_param(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = TX_TERMINAL_CTRL_50_OHM;
+	writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_1);
+
+	reg = SEL_24M | TX_DVDD_BIT_1_0625V;
+	writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_2);
+
+	reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
+	writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_3);
+
+	reg = PD_RING_OSC | AUX_TERMINAL_CTRL_50_OHM |
+		TX_CUR1_2X | TX_CUR_16_MA;
+	writel(reg, dp->reg_base + EXYNOS_DP_PLL_FILTER_CTL_1);
+
+	reg = CH3_AMP_400_MV | CH2_AMP_400_MV |
+		CH1_AMP_400_MV | CH0_AMP_400_MV;
+	writel(reg, dp->reg_base + EXYNOS_DP_TX_AMP_TUNING_CTL);
+}
+
+void exynos_dp_init_interrupt(struct exynos_dp_device *dp)
+{
+	/* Set interrupt pin assertion polarity as high */
+	writel(INT_POL1 | INT_POL0, dp->reg_base + EXYNOS_DP_INT_CTL);
+
+	/* Clear pending regisers */
+	writel(0xff, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
+	writel(0x4f, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_2);
+	writel(0xe0, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_3);
+	writel(0xe7, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
+	writel(0x63, dp->reg_base + EXYNOS_DP_INT_STA);
+
+	/* 0:mask,1: unmask */
+	writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_1);
+	writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_2);
+	writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_3);
+	writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_4);
+	writel(0x00, dp->reg_base + EXYNOS_DP_INT_STA_MASK);
+}
+
+void exynos_dp_reset(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	exynos_dp_stop_video(dp);
+	exynos_dp_enable_video_mute(dp, 0);
+
+	reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
+		AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
+		HDCP_FUNC_EN_N | SW_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
+
+	reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
+		SERDES_FIFO_FUNC_EN_N |
+		LS_CLK_DOMAIN_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+
+	usleep_range(20, 30);
+
+	exynos_dp_lane_swap(dp, 0);
+
+	writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
+	writel(0x40, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
+	writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+	writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+
+	writel(0x0, dp->reg_base + EXYNOS_DP_PKT_SEND_CTL);
+	writel(0x0, dp->reg_base + EXYNOS_DP_HDCP_CTL);
+
+	writel(0x5e, dp->reg_base + EXYNOS_DP_HPD_DEGLITCH_L);
+	writel(0x1a, dp->reg_base + EXYNOS_DP_HPD_DEGLITCH_H);
+
+	writel(0x10, dp->reg_base + EXYNOS_DP_LINK_DEBUG_CTL);
+
+	writel(0x0, dp->reg_base + EXYNOS_DP_PHY_TEST);
+
+	writel(0x0, dp->reg_base + EXYNOS_DP_VIDEO_FIFO_THRD);
+	writel(0x20, dp->reg_base + EXYNOS_DP_AUDIO_MARGIN);
+
+	writel(0x4, dp->reg_base + EXYNOS_DP_M_VID_GEN_FILTER_TH);
+	writel(0x2, dp->reg_base + EXYNOS_DP_M_AUD_GEN_FILTER_TH);
+
+	writel(0x00000101, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+}
+
+void exynos_dp_swreset(struct exynos_dp_device *dp)
+{
+	writel(RESET_DP_TX, dp->reg_base + EXYNOS_DP_TX_SW_RESET);
+}
+
+void exynos_dp_config_interrupt(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	/* 0: mask, 1: unmask */
+	reg = COMMON_INT_MASK_1;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_1);
+
+	reg = COMMON_INT_MASK_2;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_2);
+
+	reg = COMMON_INT_MASK_3;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_3);
+
+	reg = COMMON_INT_MASK_4;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_4);
+
+	reg = INT_STA_MASK;
+	writel(reg, dp->reg_base + EXYNOS_DP_INT_STA_MASK);
+}
+
+enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_DEBUG_CTL);
+	if (reg & PLL_LOCK)
+		return PLL_LOCKED;
+	else
+		return PLL_UNLOCKED;
+}
+
+void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable)
+{
+	u32 reg;
+
+	if (enable) {
+		reg = readl(dp->reg_base + EXYNOS_DP_PLL_CTL);
+		reg |= DP_PLL_PD;
+		writel(reg, dp->reg_base + EXYNOS_DP_PLL_CTL);
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_PLL_CTL);
+		reg &= ~DP_PLL_PD;
+		writel(reg, dp->reg_base + EXYNOS_DP_PLL_CTL);
+	}
+}
+
+void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
+				enum analog_power_block block,
+				bool enable)
+{
+	u32 reg;
+
+	switch (block) {
+	case AUX_BLOCK:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= AUX_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~AUX_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case CH0_BLOCK:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= CH0_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~CH0_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case CH1_BLOCK:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= CH1_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~CH1_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case CH2_BLOCK:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= CH2_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~CH2_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case CH3_BLOCK:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= CH3_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~CH3_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case ANALOG_TOTAL:
+		if (enable) {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg |= DP_PHY_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
+			reg &= ~DP_PHY_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	case POWER_ALL:
+		if (enable) {
+			reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
+				CH1_PD | CH0_PD;
+			writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
+		} else {
+			writel(0x00, dp->reg_base + EXYNOS_DP_PHY_PD);
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+void exynos_dp_init_analog_func(struct exynos_dp_device *dp)
+{
+	u32 reg;
+	int timeout_loop = 0;
+
+	exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
+
+	reg = PLL_LOCK_CHG;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_DEBUG_CTL);
+	reg &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
+	writel(reg, dp->reg_base + EXYNOS_DP_DEBUG_CTL);
+
+	/* Power up PLL */
+	if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+		exynos_dp_set_pll_power_down(dp, 0);
+
+		while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+			timeout_loop++;
+			if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+				dev_err(dp->dev, "failed to get pll lock status\n");
+				return;
+			}
+			usleep_range(10, 20);
+		}
+	}
+
+	/* Enable Serdes FIFO function and Link symbol clock domain module */
+	reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+	reg &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
+		| AUX_FUNC_EN_N);
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+}
+
+void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	if (gpio_is_valid(dp->hpd_gpio))
+		return;
+
+	reg = HOTPLUG_CHG | HPD_LOST | PLUG;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
+
+	reg = INT_HPD;
+	writel(reg, dp->reg_base + EXYNOS_DP_INT_STA);
+}
+
+void exynos_dp_init_hpd(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	if (gpio_is_valid(dp->hpd_gpio))
+		return;
+
+	exynos_dp_clear_hotplug_interrupts(dp);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+	reg &= ~(F_HPD | HPD_CTRL);
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+}
+
+enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	if (gpio_is_valid(dp->hpd_gpio)) {
+		reg = gpio_get_value(dp->hpd_gpio);
+		if (reg)
+			return DP_IRQ_TYPE_HP_CABLE_IN;
+		else
+			return DP_IRQ_TYPE_HP_CABLE_OUT;
+	} else {
+		/* Parse hotplug interrupt status register */
+		reg = readl(dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
+
+		if (reg & PLUG)
+			return DP_IRQ_TYPE_HP_CABLE_IN;
+
+		if (reg & HPD_LOST)
+			return DP_IRQ_TYPE_HP_CABLE_OUT;
+
+		if (reg & HOTPLUG_CHG)
+			return DP_IRQ_TYPE_HP_CHANGE;
+
+		return DP_IRQ_TYPE_UNKNOWN;
+	}
+}
+
+void exynos_dp_reset_aux(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	/* Disable AUX channel module */
+	reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+	reg |= AUX_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+}
+
+void exynos_dp_init_aux(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	/* Clear inerrupts related to AUX channel */
+	reg = RPLY_RECEIV | AUX_ERR;
+	writel(reg, dp->reg_base + EXYNOS_DP_INT_STA);
+
+	exynos_dp_reset_aux(dp);
+
+	/* Disable AUX transaction H/W retry */
+	reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0)|
+		AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+	writel(reg, dp->reg_base + EXYNOS_DP_AUX_HW_RETRY_CTL);
+
+	/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
+	reg = DEFER_CTRL_EN | DEFER_COUNT(1);
+	writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_DEFER_CTL);
+
+	/* Enable AUX channel module */
+	reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+	reg &= ~AUX_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
+}
+
+int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	if (gpio_is_valid(dp->hpd_gpio)) {
+		if (gpio_get_value(dp->hpd_gpio))
+			return 0;
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+		if (reg & HPD_STATUS)
+			return 0;
+	}
+
+	return -EINVAL;
+}
+
+void exynos_dp_enable_sw_function(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
+	reg &= ~SW_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
+}
+
+int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp)
+{
+	int reg;
+	int retval = 0;
+	int timeout_loop = 0;
+
+	/* Enable AUX CH operation */
+	reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
+	reg |= AUX_EN;
+	writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
+
+	/* Is AUX CH command reply received? */
+	reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
+	while (!(reg & RPLY_RECEIV)) {
+		timeout_loop++;
+		if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+			dev_err(dp->dev, "AUX CH command reply failed!\n");
+			return -ETIMEDOUT;
+		}
+		reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
+		usleep_range(10, 11);
+	}
+
+	/* Clear interrupt source for AUX CH command reply */
+	writel(RPLY_RECEIV, dp->reg_base + EXYNOS_DP_INT_STA);
+
+	/* Clear interrupt source for AUX CH access error */
+	reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
+	if (reg & AUX_ERR) {
+		writel(AUX_ERR, dp->reg_base + EXYNOS_DP_INT_STA);
+		return -EREMOTEIO;
+	}
+
+	/* Check AUX CH error access status */
+	reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_STA);
+	if ((reg & AUX_STATUS_MASK) != 0) {
+		dev_err(dp->dev, "AUX CH error happens: %d\n\n",
+			reg & AUX_STATUS_MASK);
+		return -EREMOTEIO;
+	}
+
+	return retval;
+}
+
+int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned char data)
+{
+	u32 reg;
+	int i;
+	int retval;
+
+	for (i = 0; i < 3; i++) {
+		/* Clear AUX CH data buffer */
+		reg = BUF_CLR;
+		writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+		/* Select DPCD device address */
+		reg = AUX_ADDR_7_0(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
+		reg = AUX_ADDR_15_8(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
+		reg = AUX_ADDR_19_16(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
+
+		/* Write data buffer */
+		reg = (unsigned int)data;
+		writel(reg, dp->reg_base + EXYNOS_DP_BUF_DATA_0);
+
+		/*
+		 * Set DisplayPort transaction and write 1 byte
+		 * If bit 3 is 1, DisplayPort transaction.
+		 * If Bit 3 is 0, I2C transaction.
+		 */
+		reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+		/* Start AUX transaction */
+		retval = exynos_dp_start_aux_transaction(dp);
+		if (retval == 0)
+			break;
+		else
+			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+				__func__);
+	}
+
+	return retval;
+}
+
+int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned char *data)
+{
+	u32 reg;
+	int i;
+	int retval;
+
+	for (i = 0; i < 3; i++) {
+		/* Clear AUX CH data buffer */
+		reg = BUF_CLR;
+		writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+		/* Select DPCD device address */
+		reg = AUX_ADDR_7_0(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
+		reg = AUX_ADDR_15_8(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
+		reg = AUX_ADDR_19_16(reg_addr);
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
+
+		/*
+		 * Set DisplayPort transaction and read 1 byte
+		 * If bit 3 is 1, DisplayPort transaction.
+		 * If Bit 3 is 0, I2C transaction.
+		 */
+		reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+		/* Start AUX transaction */
+		retval = exynos_dp_start_aux_transaction(dp);
+		if (retval == 0)
+			break;
+		else
+			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+				__func__);
+	}
+
+	/* Read data buffer */
+	reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0);
+	*data = (unsigned char)(reg & 0xff);
+
+	return retval;
+}
+
+int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char data[])
+{
+	u32 reg;
+	unsigned int start_offset;
+	unsigned int cur_data_count;
+	unsigned int cur_data_idx;
+	int i;
+	int retval = 0;
+
+	/* Clear AUX CH data buffer */
+	reg = BUF_CLR;
+	writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+	start_offset = 0;
+	while (start_offset < count) {
+		/* Buffer size of AUX CH is 16 * 4bytes */
+		if ((count - start_offset) > 16)
+			cur_data_count = 16;
+		else
+			cur_data_count = count - start_offset;
+
+		for (i = 0; i < 3; i++) {
+			/* Select DPCD device address */
+			reg = AUX_ADDR_7_0(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
+			reg = AUX_ADDR_15_8(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
+			reg = AUX_ADDR_19_16(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
+
+			for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+			     cur_data_idx++) {
+				reg = data[start_offset + cur_data_idx];
+				writel(reg, dp->reg_base + EXYNOS_DP_BUF_DATA_0
+							  + 4 * cur_data_idx);
+			}
+
+			/*
+			 * Set DisplayPort transaction and write
+			 * If bit 3 is 1, DisplayPort transaction.
+			 * If Bit 3 is 0, I2C transaction.
+			 */
+			reg = AUX_LENGTH(cur_data_count) |
+				AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+			/* Start AUX transaction */
+			retval = exynos_dp_start_aux_transaction(dp);
+			if (retval == 0)
+				break;
+			else
+				dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+					__func__);
+		}
+
+		start_offset += cur_data_count;
+	}
+
+	return retval;
+}
+
+int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char data[])
+{
+	u32 reg;
+	unsigned int start_offset;
+	unsigned int cur_data_count;
+	unsigned int cur_data_idx;
+	int i;
+	int retval = 0;
+
+	/* Clear AUX CH data buffer */
+	reg = BUF_CLR;
+	writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+	start_offset = 0;
+	while (start_offset < count) {
+		/* Buffer size of AUX CH is 16 * 4bytes */
+		if ((count - start_offset) > 16)
+			cur_data_count = 16;
+		else
+			cur_data_count = count - start_offset;
+
+		/* AUX CH Request Transaction process */
+		for (i = 0; i < 3; i++) {
+			/* Select DPCD device address */
+			reg = AUX_ADDR_7_0(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
+			reg = AUX_ADDR_15_8(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
+			reg = AUX_ADDR_19_16(reg_addr + start_offset);
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
+
+			/*
+			 * Set DisplayPort transaction and read
+			 * If bit 3 is 1, DisplayPort transaction.
+			 * If Bit 3 is 0, I2C transaction.
+			 */
+			reg = AUX_LENGTH(cur_data_count) |
+				AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+			/* Start AUX transaction */
+			retval = exynos_dp_start_aux_transaction(dp);
+			if (retval == 0)
+				break;
+			else
+				dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+					__func__);
+		}
+
+		for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+		    cur_data_idx++) {
+			reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0
+						 + 4 * cur_data_idx);
+			data[start_offset + cur_data_idx] =
+				(unsigned char)reg;
+		}
+
+		start_offset += cur_data_count;
+	}
+
+	return retval;
+}
+
+int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr)
+{
+	u32 reg;
+	int retval;
+
+	/* Set EDID device address */
+	reg = device_addr;
+	writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
+	writel(0x0, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
+	writel(0x0, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
+
+	/* Set offset from base address of EDID device */
+	writel(reg_addr, dp->reg_base + EXYNOS_DP_BUF_DATA_0);
+
+	/*
+	 * Set I2C transaction and write address
+	 * If bit 3 is 1, DisplayPort transaction.
+	 * If Bit 3 is 0, I2C transaction.
+	 */
+	reg = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
+		AUX_TX_COMM_WRITE;
+	writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+	/* Start AUX transaction */
+	retval = exynos_dp_start_aux_transaction(dp);
+	if (retval != 0)
+		dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+
+	return retval;
+}
+
+int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr,
+				unsigned int *data)
+{
+	u32 reg;
+	int i;
+	int retval;
+
+	for (i = 0; i < 3; i++) {
+		/* Clear AUX CH data buffer */
+		reg = BUF_CLR;
+		writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+		/* Select EDID device */
+		retval = exynos_dp_select_i2c_device(dp, device_addr, reg_addr);
+		if (retval != 0)
+			continue;
+
+		/*
+		 * Set I2C transaction and read data
+		 * If bit 3 is 1, DisplayPort transaction.
+		 * If Bit 3 is 0, I2C transaction.
+		 */
+		reg = AUX_TX_COMM_I2C_TRANSACTION |
+			AUX_TX_COMM_READ;
+		writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
+
+		/* Start AUX transaction */
+		retval = exynos_dp_start_aux_transaction(dp);
+		if (retval == 0)
+			break;
+		else
+			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+				__func__);
+	}
+
+	/* Read data */
+	if (retval == 0)
+		*data = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0);
+
+	return retval;
+}
+
+int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
+				unsigned int device_addr,
+				unsigned int reg_addr,
+				unsigned int count,
+				unsigned char edid[])
+{
+	u32 reg;
+	unsigned int i, j;
+	unsigned int cur_data_idx;
+	unsigned int defer = 0;
+	int retval = 0;
+
+	for (i = 0; i < count; i += 16) {
+		for (j = 0; j < 3; j++) {
+			/* Clear AUX CH data buffer */
+			reg = BUF_CLR;
+			writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
+
+			/* Set normal AUX CH command */
+			reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
+			reg &= ~ADDR_ONLY;
+			writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
+
+			/*
+			 * If Rx sends defer, Tx sends only reads
+			 * request without sending address
+			 */
+			if (!defer)
+				retval = exynos_dp_select_i2c_device(dp,
+						device_addr, reg_addr + i);
+			else
+				defer = 0;
+
+			if (retval == 0) {
+				/*
+				 * Set I2C transaction and write data
+				 * If bit 3 is 1, DisplayPort transaction.
+				 * If Bit 3 is 0, I2C transaction.
+				 */
+				reg = AUX_LENGTH(16) |
+					AUX_TX_COMM_I2C_TRANSACTION |
+					AUX_TX_COMM_READ;
+				writel(reg, dp->reg_base +
+					EXYNOS_DP_AUX_CH_CTL_1);
+
+				/* Start AUX transaction */
+				retval = exynos_dp_start_aux_transaction(dp);
+				if (retval == 0)
+					break;
+				else
+					dev_dbg(dp->dev,
+						"%s: Aux Transaction fail!\n",
+						__func__);
+			}
+			/* Check if Rx sends defer */
+			reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);
+			if (reg == AUX_RX_COMM_AUX_DEFER ||
+				reg == AUX_RX_COMM_I2C_DEFER) {
+				dev_err(dp->dev, "Defer: %d\n\n", reg);
+				defer = 1;
+			}
+		}
+
+		for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
+			reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0
+						 + 4 * cur_data_idx);
+			edid[i + cur_data_idx] = (unsigned char)reg;
+		}
+	}
+
+	return retval;
+}
+
+void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype)
+{
+	u32 reg;
+
+	reg = bwtype;
+	if ((bwtype == LINK_RATE_2_70GBPS) || (bwtype == LINK_RATE_1_62GBPS))
+		writel(reg, dp->reg_base + EXYNOS_DP_LINK_BW_SET);
+}
+
+void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LINK_BW_SET);
+	*bwtype = reg;
+}
+
+void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count)
+{
+	u32 reg;
+
+	reg = count;
+	writel(reg, dp->reg_base + EXYNOS_DP_LANE_COUNT_SET);
+}
+
+void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LANE_COUNT_SET);
+	*count = reg;
+}
+
+void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable)
+{
+	u32 reg;
+
+	if (enable) {
+		reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+		reg |= ENHANCED;
+		writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+		reg &= ~ENHANCED;
+		writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+	}
+}
+
+void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
+				 enum pattern_set pattern)
+{
+	u32 reg;
+
+	switch (pattern) {
+	case PRBS7:
+		reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
+		writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+		break;
+	case D10_2:
+		reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
+		writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+		break;
+	case TRAINING_PTN1:
+		reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
+		writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+		break;
+	case TRAINING_PTN2:
+		reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
+		writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+		break;
+	case DP_NONE:
+		reg = SCRAMBLING_ENABLE |
+			LINK_QUAL_PATTERN_SET_DISABLE |
+			SW_TRAINING_PATTERN_SET_NORMAL;
+		writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+		break;
+	default:
+		break;
+	}
+}
+
+void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
+	reg &= ~PRE_EMPHASIS_SET_MASK;
+	reg |= level << PRE_EMPHASIS_SET_SHIFT;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
+	reg &= ~PRE_EMPHASIS_SET_MASK;
+	reg |= level << PRE_EMPHASIS_SET_SHIFT;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
+	reg &= ~PRE_EMPHASIS_SET_MASK;
+	reg |= level << PRE_EMPHASIS_SET_SHIFT;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
+	reg &= ~PRE_EMPHASIS_SET_MASK;
+	reg |= level << PRE_EMPHASIS_SET_SHIFT;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
+					u32 training_lane)
+{
+	u32 reg;
+
+	reg = training_lane;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
+					u32 training_lane)
+{
+	u32 reg;
+
+	reg = training_lane;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
+					u32 training_lane)
+{
+	u32 reg;
+
+	reg = training_lane;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
+					u32 training_lane)
+{
+	u32 reg;
+
+	reg = training_lane;
+	writel(reg, dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
+}
+
+u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
+	return reg;
+}
+
+u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
+	return reg;
+}
+
+u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
+	return reg;
+}
+
+u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
+	return reg;
+}
+
+void exynos_dp_reset_macro(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_PHY_TEST);
+	reg |= MACRO_RST;
+	writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
+
+	/* 10 us is the minimum reset time. */
+	usleep_range(10, 20);
+
+	reg &= ~MACRO_RST;
+	writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
+}
+
+void exynos_dp_init_video(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
+	writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
+
+	reg = 0x0;
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
+
+	reg = CHA_CRI(4) | CHA_CTRL;
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
+
+	reg = 0x0;
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+
+	reg = VID_HRES_TH(2) | VID_VRES_TH(0);
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_8);
+}
+
+void exynos_dp_set_video_color_format(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	/* Configure the input color depth, color space, dynamic range */
+	reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
+		(dp->video_info->color_depth << IN_BPC_SHIFT) |
+		(dp->video_info->color_space << IN_COLOR_F_SHIFT);
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_2);
+
+	/* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_3);
+	reg &= ~IN_YC_COEFFI_MASK;
+	if (dp->video_info->ycbcr_coeff)
+		reg |= IN_YC_COEFFI_ITU709;
+	else
+		reg |= IN_YC_COEFFI_ITU601;
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_3);
+}
+
+int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_1);
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_1);
+
+	if (!(reg & DET_STA)) {
+		dev_dbg(dp->dev, "Input stream clock not detected.\n");
+		return -EINVAL;
+	}
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_2);
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_2);
+	dev_dbg(dp->dev, "wait SYS_CTL_2.\n");
+
+	if (reg & CHA_STA) {
+		dev_dbg(dp->dev, "Input stream clk is changing\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
+		enum clock_recovery_m_value_type type,
+		u32 m_value,
+		u32 n_value)
+{
+	u32 reg;
+
+	if (type == REGISTER_M) {
+		reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+		reg |= FIX_M_VID;
+		writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+		reg = m_value & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_M_VID_0);
+		reg = (m_value >> 8) & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_M_VID_1);
+		reg = (m_value >> 16) & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_M_VID_2);
+
+		reg = n_value & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_N_VID_0);
+		reg = (n_value >> 8) & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_N_VID_1);
+		reg = (n_value >> 16) & 0xff;
+		writel(reg, dp->reg_base + EXYNOS_DP_N_VID_2);
+	} else  {
+		reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+		reg &= ~FIX_M_VID;
+		writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
+
+		writel(0x00, dp->reg_base + EXYNOS_DP_N_VID_0);
+		writel(0x80, dp->reg_base + EXYNOS_DP_N_VID_1);
+		writel(0x00, dp->reg_base + EXYNOS_DP_N_VID_2);
+	}
+}
+
+void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type)
+{
+	u32 reg;
+
+	if (type == VIDEO_TIMING_FROM_CAPTURE) {
+		reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+		reg &= ~FORMAT_SEL;
+		writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+		reg |= FORMAT_SEL;
+		writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+	}
+}
+
+void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable)
+{
+	u32 reg;
+
+	if (enable) {
+		reg = readl(dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+		reg &= ~VIDEO_MODE_MASK;
+		reg |= VIDEO_MASTER_MODE_EN | VIDEO_MODE_MASTER_MODE;
+		writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+	} else {
+		reg = readl(dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+		reg &= ~VIDEO_MODE_MASK;
+		reg |= VIDEO_MODE_SLAVE_MODE;
+		writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+	}
+}
+
+void exynos_dp_start_video(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+	reg |= VIDEO_EN;
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
+}
+
+int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+	writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
+	if (!(reg & STRM_VALID)) {
+		dev_dbg(dp->dev, "Input video stream is not detected.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
+	reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N);
+	reg |= MASTER_VID_FUNC_EN_N;
+	writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+	reg &= ~INTERACE_SCAN_CFG;
+	reg |= (dp->video_info->interlaced << 2);
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+	reg &= ~VSYNC_POLARITY_CFG;
+	reg |= (dp->video_info->v_sync_polarity << 1);
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+
+	reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+	reg &= ~HSYNC_POLARITY_CFG;
+	reg |= (dp->video_info->h_sync_polarity << 0);
+	writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
+
+	reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
+	writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
+}
+
+void exynos_dp_enable_scrambling(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+	reg &= ~SCRAMBLING_DISABLE;
+	writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+}
+
+void exynos_dp_disable_scrambling(struct exynos_dp_device *dp)
+{
+	u32 reg;
+
+	reg = readl(dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+	reg |= SCRAMBLING_DISABLE;
+	writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.h b/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.h
new file mode 100644
index 000000000..2e9bd0e0b
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_dp_reg.h
@@ -0,0 +1,366 @@
+/*
+ * Register definition file for Samsung DP driver
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _EXYNOS_DP_REG_H
+#define _EXYNOS_DP_REG_H
+
+#define EXYNOS_DP_TX_SW_RESET			0x14
+#define EXYNOS_DP_FUNC_EN_1			0x18
+#define EXYNOS_DP_FUNC_EN_2			0x1C
+#define EXYNOS_DP_VIDEO_CTL_1			0x20
+#define EXYNOS_DP_VIDEO_CTL_2			0x24
+#define EXYNOS_DP_VIDEO_CTL_3			0x28
+
+#define EXYNOS_DP_VIDEO_CTL_8			0x3C
+#define EXYNOS_DP_VIDEO_CTL_10			0x44
+
+#define EXYNOS_DP_LANE_MAP			0x35C
+
+#define EXYNOS_DP_ANALOG_CTL_1			0x370
+#define EXYNOS_DP_ANALOG_CTL_2			0x374
+#define EXYNOS_DP_ANALOG_CTL_3			0x378
+#define EXYNOS_DP_PLL_FILTER_CTL_1		0x37C
+#define EXYNOS_DP_TX_AMP_TUNING_CTL		0x380
+
+#define EXYNOS_DP_AUX_HW_RETRY_CTL		0x390
+
+#define EXYNOS_DP_COMMON_INT_STA_1		0x3C4
+#define EXYNOS_DP_COMMON_INT_STA_2		0x3C8
+#define EXYNOS_DP_COMMON_INT_STA_3		0x3CC
+#define EXYNOS_DP_COMMON_INT_STA_4		0x3D0
+#define EXYNOS_DP_INT_STA			0x3DC
+#define EXYNOS_DP_COMMON_INT_MASK_1		0x3E0
+#define EXYNOS_DP_COMMON_INT_MASK_2		0x3E4
+#define EXYNOS_DP_COMMON_INT_MASK_3		0x3E8
+#define EXYNOS_DP_COMMON_INT_MASK_4		0x3EC
+#define EXYNOS_DP_INT_STA_MASK			0x3F8
+#define EXYNOS_DP_INT_CTL			0x3FC
+
+#define EXYNOS_DP_SYS_CTL_1			0x600
+#define EXYNOS_DP_SYS_CTL_2			0x604
+#define EXYNOS_DP_SYS_CTL_3			0x608
+#define EXYNOS_DP_SYS_CTL_4			0x60C
+
+#define EXYNOS_DP_PKT_SEND_CTL			0x640
+#define EXYNOS_DP_HDCP_CTL			0x648
+
+#define EXYNOS_DP_LINK_BW_SET			0x680
+#define EXYNOS_DP_LANE_COUNT_SET		0x684
+#define EXYNOS_DP_TRAINING_PTN_SET		0x688
+#define EXYNOS_DP_LN0_LINK_TRAINING_CTL		0x68C
+#define EXYNOS_DP_LN1_LINK_TRAINING_CTL		0x690
+#define EXYNOS_DP_LN2_LINK_TRAINING_CTL		0x694
+#define EXYNOS_DP_LN3_LINK_TRAINING_CTL		0x698
+
+#define EXYNOS_DP_DEBUG_CTL			0x6C0
+#define EXYNOS_DP_HPD_DEGLITCH_L		0x6C4
+#define EXYNOS_DP_HPD_DEGLITCH_H		0x6C8
+#define EXYNOS_DP_LINK_DEBUG_CTL		0x6E0
+
+#define EXYNOS_DP_M_VID_0			0x700
+#define EXYNOS_DP_M_VID_1			0x704
+#define EXYNOS_DP_M_VID_2			0x708
+#define EXYNOS_DP_N_VID_0			0x70C
+#define EXYNOS_DP_N_VID_1			0x710
+#define EXYNOS_DP_N_VID_2			0x714
+
+#define EXYNOS_DP_PLL_CTL			0x71C
+#define EXYNOS_DP_PHY_PD			0x720
+#define EXYNOS_DP_PHY_TEST			0x724
+
+#define EXYNOS_DP_VIDEO_FIFO_THRD		0x730
+#define EXYNOS_DP_AUDIO_MARGIN			0x73C
+
+#define EXYNOS_DP_M_VID_GEN_FILTER_TH		0x764
+#define EXYNOS_DP_M_AUD_GEN_FILTER_TH		0x778
+#define EXYNOS_DP_AUX_CH_STA			0x780
+#define EXYNOS_DP_AUX_CH_DEFER_CTL		0x788
+#define EXYNOS_DP_AUX_RX_COMM			0x78C
+#define EXYNOS_DP_BUFFER_DATA_CTL		0x790
+#define EXYNOS_DP_AUX_CH_CTL_1			0x794
+#define EXYNOS_DP_AUX_ADDR_7_0			0x798
+#define EXYNOS_DP_AUX_ADDR_15_8			0x79C
+#define EXYNOS_DP_AUX_ADDR_19_16		0x7A0
+#define EXYNOS_DP_AUX_CH_CTL_2			0x7A4
+
+#define EXYNOS_DP_BUF_DATA_0			0x7C0
+
+#define EXYNOS_DP_SOC_GENERAL_CTL		0x800
+
+/* EXYNOS_DP_TX_SW_RESET */
+#define RESET_DP_TX				(0x1 << 0)
+
+/* EXYNOS_DP_FUNC_EN_1 */
+#define MASTER_VID_FUNC_EN_N			(0x1 << 7)
+#define SLAVE_VID_FUNC_EN_N			(0x1 << 5)
+#define AUD_FIFO_FUNC_EN_N			(0x1 << 4)
+#define AUD_FUNC_EN_N				(0x1 << 3)
+#define HDCP_FUNC_EN_N				(0x1 << 2)
+#define CRC_FUNC_EN_N				(0x1 << 1)
+#define SW_FUNC_EN_N				(0x1 << 0)
+
+/* EXYNOS_DP_FUNC_EN_2 */
+#define SSC_FUNC_EN_N				(0x1 << 7)
+#define AUX_FUNC_EN_N				(0x1 << 2)
+#define SERDES_FIFO_FUNC_EN_N			(0x1 << 1)
+#define LS_CLK_DOMAIN_FUNC_EN_N			(0x1 << 0)
+
+/* EXYNOS_DP_VIDEO_CTL_1 */
+#define VIDEO_EN				(0x1 << 7)
+#define HDCP_VIDEO_MUTE				(0x1 << 6)
+
+/* EXYNOS_DP_VIDEO_CTL_1 */
+#define IN_D_RANGE_MASK				(0x1 << 7)
+#define IN_D_RANGE_SHIFT			(7)
+#define IN_D_RANGE_CEA				(0x1 << 7)
+#define IN_D_RANGE_VESA				(0x0 << 7)
+#define IN_BPC_MASK				(0x7 << 4)
+#define IN_BPC_SHIFT				(4)
+#define IN_BPC_12_BITS				(0x3 << 4)
+#define IN_BPC_10_BITS				(0x2 << 4)
+#define IN_BPC_8_BITS				(0x1 << 4)
+#define IN_BPC_6_BITS				(0x0 << 4)
+#define IN_COLOR_F_MASK				(0x3 << 0)
+#define IN_COLOR_F_SHIFT			(0)
+#define IN_COLOR_F_YCBCR444			(0x2 << 0)
+#define IN_COLOR_F_YCBCR422			(0x1 << 0)
+#define IN_COLOR_F_RGB				(0x0 << 0)
+
+/* EXYNOS_DP_VIDEO_CTL_3 */
+#define IN_YC_COEFFI_MASK			(0x1 << 7)
+#define IN_YC_COEFFI_SHIFT			(7)
+#define IN_YC_COEFFI_ITU709			(0x1 << 7)
+#define IN_YC_COEFFI_ITU601			(0x0 << 7)
+#define VID_CHK_UPDATE_TYPE_MASK		(0x1 << 4)
+#define VID_CHK_UPDATE_TYPE_SHIFT		(4)
+#define VID_CHK_UPDATE_TYPE_1			(0x1 << 4)
+#define VID_CHK_UPDATE_TYPE_0			(0x0 << 4)
+
+/* EXYNOS_DP_VIDEO_CTL_8 */
+#define VID_HRES_TH(x)				(((x) & 0xf) << 4)
+#define VID_VRES_TH(x)				(((x) & 0xf) << 0)
+
+/* EXYNOS_DP_VIDEO_CTL_10 */
+#define FORMAT_SEL				(0x1 << 4)
+#define INTERACE_SCAN_CFG			(0x1 << 2)
+#define VSYNC_POLARITY_CFG			(0x1 << 1)
+#define HSYNC_POLARITY_CFG			(0x1 << 0)
+
+/* EXYNOS_DP_LANE_MAP */
+#define LANE3_MAP_LOGIC_LANE_0			(0x0 << 6)
+#define LANE3_MAP_LOGIC_LANE_1			(0x1 << 6)
+#define LANE3_MAP_LOGIC_LANE_2			(0x2 << 6)
+#define LANE3_MAP_LOGIC_LANE_3			(0x3 << 6)
+#define LANE2_MAP_LOGIC_LANE_0			(0x0 << 4)
+#define LANE2_MAP_LOGIC_LANE_1			(0x1 << 4)
+#define LANE2_MAP_LOGIC_LANE_2			(0x2 << 4)
+#define LANE2_MAP_LOGIC_LANE_3			(0x3 << 4)
+#define LANE1_MAP_LOGIC_LANE_0			(0x0 << 2)
+#define LANE1_MAP_LOGIC_LANE_1			(0x1 << 2)
+#define LANE1_MAP_LOGIC_LANE_2			(0x2 << 2)
+#define LANE1_MAP_LOGIC_LANE_3			(0x3 << 2)
+#define LANE0_MAP_LOGIC_LANE_0			(0x0 << 0)
+#define LANE0_MAP_LOGIC_LANE_1			(0x1 << 0)
+#define LANE0_MAP_LOGIC_LANE_2			(0x2 << 0)
+#define LANE0_MAP_LOGIC_LANE_3			(0x3 << 0)
+
+/* EXYNOS_DP_ANALOG_CTL_1 */
+#define TX_TERMINAL_CTRL_50_OHM			(0x1 << 4)
+
+/* EXYNOS_DP_ANALOG_CTL_2 */
+#define SEL_24M					(0x1 << 3)
+#define TX_DVDD_BIT_1_0625V			(0x4 << 0)
+
+/* EXYNOS_DP_ANALOG_CTL_3 */
+#define DRIVE_DVDD_BIT_1_0625V			(0x4 << 5)
+#define VCO_BIT_600_MICRO			(0x5 << 0)
+
+/* EXYNOS_DP_PLL_FILTER_CTL_1 */
+#define PD_RING_OSC				(0x1 << 6)
+#define AUX_TERMINAL_CTRL_50_OHM		(0x2 << 4)
+#define TX_CUR1_2X				(0x1 << 2)
+#define TX_CUR_16_MA				(0x3 << 0)
+
+/* EXYNOS_DP_TX_AMP_TUNING_CTL */
+#define CH3_AMP_400_MV				(0x0 << 24)
+#define CH2_AMP_400_MV				(0x0 << 16)
+#define CH1_AMP_400_MV				(0x0 << 8)
+#define CH0_AMP_400_MV				(0x0 << 0)
+
+/* EXYNOS_DP_AUX_HW_RETRY_CTL */
+#define AUX_BIT_PERIOD_EXPECTED_DELAY(x)	(((x) & 0x7) << 8)
+#define AUX_HW_RETRY_INTERVAL_MASK		(0x3 << 3)
+#define AUX_HW_RETRY_INTERVAL_600_MICROSECONDS	(0x0 << 3)
+#define AUX_HW_RETRY_INTERVAL_800_MICROSECONDS	(0x1 << 3)
+#define AUX_HW_RETRY_INTERVAL_1000_MICROSECONDS	(0x2 << 3)
+#define AUX_HW_RETRY_INTERVAL_1800_MICROSECONDS	(0x3 << 3)
+#define AUX_HW_RETRY_COUNT_SEL(x)		(((x) & 0x7) << 0)
+
+/* EXYNOS_DP_COMMON_INT_STA_1 */
+#define VSYNC_DET				(0x1 << 7)
+#define PLL_LOCK_CHG				(0x1 << 6)
+#define SPDIF_ERR				(0x1 << 5)
+#define SPDIF_UNSTBL				(0x1 << 4)
+#define VID_FORMAT_CHG				(0x1 << 3)
+#define AUD_CLK_CHG				(0x1 << 2)
+#define VID_CLK_CHG				(0x1 << 1)
+#define SW_INT					(0x1 << 0)
+
+/* EXYNOS_DP_COMMON_INT_STA_2 */
+#define ENC_EN_CHG				(0x1 << 6)
+#define HW_BKSV_RDY				(0x1 << 3)
+#define HW_SHA_DONE				(0x1 << 2)
+#define HW_AUTH_STATE_CHG			(0x1 << 1)
+#define HW_AUTH_DONE				(0x1 << 0)
+
+/* EXYNOS_DP_COMMON_INT_STA_3 */
+#define AFIFO_UNDER				(0x1 << 7)
+#define AFIFO_OVER				(0x1 << 6)
+#define R0_CHK_FLAG				(0x1 << 5)
+
+/* EXYNOS_DP_COMMON_INT_STA_4 */
+#define PSR_ACTIVE				(0x1 << 7)
+#define PSR_INACTIVE				(0x1 << 6)
+#define SPDIF_BI_PHASE_ERR			(0x1 << 5)
+#define HOTPLUG_CHG				(0x1 << 2)
+#define HPD_LOST				(0x1 << 1)
+#define PLUG					(0x1 << 0)
+
+/* EXYNOS_DP_INT_STA */
+#define INT_HPD					(0x1 << 6)
+#define HW_TRAINING_FINISH			(0x1 << 5)
+#define RPLY_RECEIV				(0x1 << 1)
+#define AUX_ERR					(0x1 << 0)
+
+/* EXYNOS_DP_INT_CTL */
+#define SOFT_INT_CTRL				(0x1 << 2)
+#define INT_POL1				(0x1 << 1)
+#define INT_POL0				(0x1 << 0)
+
+/* EXYNOS_DP_SYS_CTL_1 */
+#define DET_STA					(0x1 << 2)
+#define FORCE_DET				(0x1 << 1)
+#define DET_CTRL				(0x1 << 0)
+
+/* EXYNOS_DP_SYS_CTL_2 */
+#define CHA_CRI(x)				(((x) & 0xf) << 4)
+#define CHA_STA					(0x1 << 2)
+#define FORCE_CHA				(0x1 << 1)
+#define CHA_CTRL				(0x1 << 0)
+
+/* EXYNOS_DP_SYS_CTL_3 */
+#define HPD_STATUS				(0x1 << 6)
+#define F_HPD					(0x1 << 5)
+#define HPD_CTRL				(0x1 << 4)
+#define HDCP_RDY				(0x1 << 3)
+#define STRM_VALID				(0x1 << 2)
+#define F_VALID					(0x1 << 1)
+#define VALID_CTRL				(0x1 << 0)
+
+/* EXYNOS_DP_SYS_CTL_4 */
+#define FIX_M_AUD				(0x1 << 4)
+#define ENHANCED				(0x1 << 3)
+#define FIX_M_VID				(0x1 << 2)
+#define M_VID_UPDATE_CTRL			(0x3 << 0)
+
+/* EXYNOS_DP_TRAINING_PTN_SET */
+#define SCRAMBLER_TYPE				(0x1 << 9)
+#define HW_LINK_TRAINING_PATTERN		(0x1 << 8)
+#define SCRAMBLING_DISABLE			(0x1 << 5)
+#define SCRAMBLING_ENABLE			(0x0 << 5)
+#define LINK_QUAL_PATTERN_SET_MASK		(0x3 << 2)
+#define LINK_QUAL_PATTERN_SET_PRBS7		(0x3 << 2)
+#define LINK_QUAL_PATTERN_SET_D10_2		(0x1 << 2)
+#define LINK_QUAL_PATTERN_SET_DISABLE		(0x0 << 2)
+#define SW_TRAINING_PATTERN_SET_MASK		(0x3 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN2		(0x2 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN1		(0x1 << 0)
+#define SW_TRAINING_PATTERN_SET_NORMAL		(0x0 << 0)
+
+/* EXYNOS_DP_LN0_LINK_TRAINING_CTL */
+#define PRE_EMPHASIS_SET_MASK			(0x3 << 3)
+#define PRE_EMPHASIS_SET_SHIFT			(3)
+
+/* EXYNOS_DP_DEBUG_CTL */
+#define PLL_LOCK				(0x1 << 4)
+#define F_PLL_LOCK				(0x1 << 3)
+#define PLL_LOCK_CTRL				(0x1 << 2)
+#define PN_INV					(0x1 << 0)
+
+/* EXYNOS_DP_PLL_CTL */
+#define DP_PLL_PD				(0x1 << 7)
+#define DP_PLL_RESET				(0x1 << 6)
+#define DP_PLL_LOOP_BIT_DEFAULT			(0x1 << 4)
+#define DP_PLL_REF_BIT_1_1250V			(0x5 << 0)
+#define DP_PLL_REF_BIT_1_2500V			(0x7 << 0)
+
+/* EXYNOS_DP_PHY_PD */
+#define DP_PHY_PD				(0x1 << 5)
+#define AUX_PD					(0x1 << 4)
+#define CH3_PD					(0x1 << 3)
+#define CH2_PD					(0x1 << 2)
+#define CH1_PD					(0x1 << 1)
+#define CH0_PD					(0x1 << 0)
+
+/* EXYNOS_DP_PHY_TEST */
+#define MACRO_RST				(0x1 << 5)
+#define CH1_TEST				(0x1 << 1)
+#define CH0_TEST				(0x1 << 0)
+
+/* EXYNOS_DP_AUX_CH_STA */
+#define AUX_BUSY				(0x1 << 4)
+#define AUX_STATUS_MASK				(0xf << 0)
+
+/* EXYNOS_DP_AUX_CH_DEFER_CTL */
+#define DEFER_CTRL_EN				(0x1 << 7)
+#define DEFER_COUNT(x)				(((x) & 0x7f) << 0)
+
+/* EXYNOS_DP_AUX_RX_COMM */
+#define AUX_RX_COMM_I2C_DEFER			(0x2 << 2)
+#define AUX_RX_COMM_AUX_DEFER			(0x2 << 0)
+
+/* EXYNOS_DP_BUFFER_DATA_CTL */
+#define BUF_CLR					(0x1 << 7)
+#define BUF_DATA_COUNT(x)			(((x) & 0x1f) << 0)
+
+/* EXYNOS_DP_AUX_CH_CTL_1 */
+#define AUX_LENGTH(x)				(((x - 1) & 0xf) << 4)
+#define AUX_TX_COMM_MASK			(0xf << 0)
+#define AUX_TX_COMM_DP_TRANSACTION		(0x1 << 3)
+#define AUX_TX_COMM_I2C_TRANSACTION		(0x0 << 3)
+#define AUX_TX_COMM_MOT				(0x1 << 2)
+#define AUX_TX_COMM_WRITE			(0x0 << 0)
+#define AUX_TX_COMM_READ			(0x1 << 0)
+
+/* EXYNOS_DP_AUX_ADDR_7_0 */
+#define AUX_ADDR_7_0(x)				(((x) >> 0) & 0xff)
+
+/* EXYNOS_DP_AUX_ADDR_15_8 */
+#define AUX_ADDR_15_8(x)			(((x) >> 8) & 0xff)
+
+/* EXYNOS_DP_AUX_ADDR_19_16 */
+#define AUX_ADDR_19_16(x)			(((x) >> 16) & 0x0f)
+
+/* EXYNOS_DP_AUX_CH_CTL_2 */
+#define ADDR_ONLY				(0x1 << 1)
+#define AUX_EN					(0x1 << 0)
+
+/* EXYNOS_DP_SOC_GENERAL_CTL */
+#define AUDIO_MODE_SPDIF_MODE			(0x1 << 8)
+#define AUDIO_MODE_MASTER_MODE			(0x0 << 8)
+#define MASTER_VIDEO_INTERLACE_EN		(0x1 << 4)
+#define VIDEO_MASTER_CLK_SEL			(0x1 << 2)
+#define VIDEO_MASTER_MODE_EN			(0x1 << 1)
+#define VIDEO_MODE_MASK				(0x1 << 0)
+#define VIDEO_MODE_SLAVE_MODE			(0x1 << 0)
+#define VIDEO_MODE_MASTER_MODE			(0x0 << 0)
+
+#endif /* _EXYNOS_DP_REG_H */
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.c
new file mode 100644
index 000000000..24994ba10
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -0,0 +1,186 @@
+/* exynos_drm_buf.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_buf.h"
+#include "exynos_drm_iommu.h"
+
+static int lowlevel_buffer_allocate(struct drm_device *dev,
+		unsigned int flags, struct exynos_drm_gem_buf *buf)
+{
+	int ret = 0;
+	enum dma_attr attr;
+	unsigned int nr_pages;
+
+	if (buf->dma_addr) {
+		DRM_DEBUG_KMS("already allocated.\n");
+		return 0;
+	}
+
+	init_dma_attrs(&buf->dma_attrs);
+
+	/*
+	 * if EXYNOS_BO_CONTIG, fully physically contiguous memory
+	 * region will be allocated else physically contiguous
+	 * as possible.
+	 */
+	if (!(flags & EXYNOS_BO_NONCONTIG))
+		dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, &buf->dma_attrs);
+
+	/*
+	 * if EXYNOS_BO_WC or EXYNOS_BO_NONCACHABLE, writecombine mapping
+	 * else cachable mapping.
+	 */
+	if (flags & EXYNOS_BO_WC || !(flags & EXYNOS_BO_CACHABLE))
+		attr = DMA_ATTR_WRITE_COMBINE;
+	else
+		attr = DMA_ATTR_NON_CONSISTENT;
+
+	dma_set_attr(attr, &buf->dma_attrs);
+	dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &buf->dma_attrs);
+
+	nr_pages = buf->size >> PAGE_SHIFT;
+
+	if (!is_drm_iommu_supported(dev)) {
+		dma_addr_t start_addr;
+		unsigned int i = 0;
+
+		buf->pages = drm_calloc_large(nr_pages, sizeof(struct page *));
+		if (!buf->pages) {
+			DRM_ERROR("failed to allocate pages.\n");
+			return -ENOMEM;
+		}
+
+		buf->cookie = dma_alloc_attrs(dev->dev,
+					buf->size,
+					&buf->dma_addr, GFP_KERNEL,
+					&buf->dma_attrs);
+		if (!buf->cookie) {
+			DRM_ERROR("failed to allocate buffer.\n");
+			ret = -ENOMEM;
+			goto err_free;
+		}
+
+		start_addr = buf->dma_addr;
+		while (i < nr_pages) {
+			buf->pages[i] = phys_to_page(start_addr);
+			start_addr += PAGE_SIZE;
+			i++;
+		}
+	} else {
+
+		buf->pages = dma_alloc_attrs(dev->dev, buf->size,
+					&buf->dma_addr, GFP_KERNEL,
+					&buf->dma_attrs);
+		if (!buf->pages) {
+			DRM_ERROR("failed to allocate buffer.\n");
+			return -ENOMEM;
+		}
+	}
+
+	buf->sgt = drm_prime_pages_to_sg(buf->pages, nr_pages);
+	if (IS_ERR(buf->sgt)) {
+		DRM_ERROR("failed to get sg table.\n");
+		ret = PTR_ERR(buf->sgt);
+		goto err_free_attrs;
+	}
+
+	DRM_DEBUG_KMS("dma_addr(0x%lx), size(0x%lx)\n",
+			(unsigned long)buf->dma_addr,
+			buf->size);
+
+	return ret;
+
+err_free_attrs:
+	dma_free_attrs(dev->dev, buf->size, buf->pages,
+			(dma_addr_t)buf->dma_addr, &buf->dma_attrs);
+	buf->dma_addr = (dma_addr_t)NULL;
+err_free:
+	if (!is_drm_iommu_supported(dev))
+		drm_free_large(buf->pages);
+
+	return ret;
+}
+
+static void lowlevel_buffer_deallocate(struct drm_device *dev,
+		unsigned int flags, struct exynos_drm_gem_buf *buf)
+{
+	if (!buf->dma_addr) {
+		DRM_DEBUG_KMS("dma_addr is invalid.\n");
+		return;
+	}
+
+	DRM_DEBUG_KMS("dma_addr(0x%lx), size(0x%lx)\n",
+			(unsigned long)buf->dma_addr,
+			buf->size);
+
+	sg_free_table(buf->sgt);
+
+	kfree(buf->sgt);
+	buf->sgt = NULL;
+
+	if (!is_drm_iommu_supported(dev)) {
+		dma_free_attrs(dev->dev, buf->size, buf->cookie,
+				(dma_addr_t)buf->dma_addr, &buf->dma_attrs);
+		drm_free_large(buf->pages);
+	} else
+		dma_free_attrs(dev->dev, buf->size, buf->pages,
+				(dma_addr_t)buf->dma_addr, &buf->dma_attrs);
+
+	buf->dma_addr = (dma_addr_t)NULL;
+}
+
+struct exynos_drm_gem_buf *exynos_drm_init_buf(struct drm_device *dev,
+						unsigned int size)
+{
+	struct exynos_drm_gem_buf *buffer;
+
+	DRM_DEBUG_KMS("desired size = 0x%x\n", size);
+
+	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+	if (!buffer)
+		return NULL;
+
+	buffer->size = size;
+	return buffer;
+}
+
+void exynos_drm_fini_buf(struct drm_device *dev,
+				struct exynos_drm_gem_buf *buffer)
+{
+	kfree(buffer);
+	buffer = NULL;
+}
+
+int exynos_drm_alloc_buf(struct drm_device *dev,
+		struct exynos_drm_gem_buf *buf, unsigned int flags)
+{
+
+	/*
+	 * allocate memory region and set the memory information
+	 * to vaddr and dma_addr of a buffer object.
+	 */
+	if (lowlevel_buffer_allocate(dev, flags, buf) < 0)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void exynos_drm_free_buf(struct drm_device *dev,
+		unsigned int flags, struct exynos_drm_gem_buf *buffer)
+{
+
+	lowlevel_buffer_deallocate(dev, flags, buffer);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h
new file mode 100644
index 000000000..a6412f196
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_buf.h
@@ -0,0 +1,33 @@
+/* exynos_drm_buf.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_BUF_H_
+#define _EXYNOS_DRM_BUF_H_
+
+/* create and initialize buffer object. */
+struct exynos_drm_gem_buf *exynos_drm_init_buf(struct drm_device *dev,
+						unsigned int size);
+
+/* destroy buffer object. */
+void exynos_drm_fini_buf(struct drm_device *dev,
+				struct exynos_drm_gem_buf *buffer);
+
+/* allocate physical memory region and setup sgt. */
+int exynos_drm_alloc_buf(struct drm_device *dev,
+				struct exynos_drm_gem_buf *buf,
+				unsigned int flags);
+
+/* release physical memory region, and sgt. */
+void exynos_drm_free_buf(struct drm_device *dev,
+				unsigned int flags,
+				struct exynos_drm_gem_buf *buffer);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_core.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_core.c
new file mode 100644
index 000000000..4c9f972ea
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -0,0 +1,161 @@
+/* exynos_drm_core.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Author:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_encoder.h"
+#include "exynos_drm_fbdev.h"
+
+static LIST_HEAD(exynos_drm_subdrv_list);
+
+int exynos_drm_create_enc_conn(struct drm_device *dev,
+					struct exynos_drm_display *display)
+{
+	struct drm_encoder *encoder;
+	int ret;
+	unsigned long possible_crtcs = 0;
+
+	ret = exynos_drm_crtc_get_pipe_from_type(dev, display->type);
+	if (ret < 0)
+		return ret;
+
+	possible_crtcs |= 1 << ret;
+
+	/* create and initialize a encoder for this sub driver. */
+	encoder = exynos_drm_encoder_create(dev, display, possible_crtcs);
+	if (!encoder) {
+		DRM_ERROR("failed to create encoder\n");
+		return -EFAULT;
+	}
+
+	display->encoder = encoder;
+
+	ret = display->ops->create_connector(display, encoder);
+	if (ret) {
+		DRM_ERROR("failed to create connector ret = %d\n", ret);
+		goto err_destroy_encoder;
+	}
+
+	return 0;
+
+err_destroy_encoder:
+	encoder->funcs->destroy(encoder);
+	return ret;
+}
+
+int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
+{
+	if (!subdrv)
+		return -EINVAL;
+
+	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
+
+int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
+{
+	if (!subdrv)
+		return -EINVAL;
+
+	list_del(&subdrv->list);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
+
+int exynos_drm_device_subdrv_probe(struct drm_device *dev)
+{
+	struct exynos_drm_subdrv *subdrv, *n;
+	int err;
+
+	if (!dev)
+		return -EINVAL;
+
+	list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
+		if (subdrv->probe) {
+			subdrv->drm_dev = dev;
+
+			/*
+			 * this probe callback would be called by sub driver
+			 * after setting of all resources to this sub driver,
+			 * such as clock, irq and register map are done.
+			 */
+			err = subdrv->probe(dev, subdrv->dev);
+			if (err) {
+				DRM_DEBUG("exynos drm subdrv probe failed.\n");
+				list_del(&subdrv->list);
+				continue;
+			}
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_probe);
+
+int exynos_drm_device_subdrv_remove(struct drm_device *dev)
+{
+	struct exynos_drm_subdrv *subdrv;
+
+	if (!dev) {
+		WARN(1, "Unexpected drm device unregister!\n");
+		return -EINVAL;
+	}
+
+	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+		if (subdrv->remove)
+			subdrv->remove(dev, subdrv->dev);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_remove);
+
+int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
+{
+	struct exynos_drm_subdrv *subdrv;
+	int ret;
+
+	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+		if (subdrv->open) {
+			ret = subdrv->open(dev, subdrv->dev, file);
+			if (ret)
+				goto err;
+		}
+	}
+
+	return 0;
+
+err:
+	list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
+		if (subdrv->close)
+			subdrv->close(dev, subdrv->dev, file);
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_open);
+
+void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
+{
+	struct exynos_drm_subdrv *subdrv;
+
+	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+		if (subdrv->close)
+			subdrv->close(dev, subdrv->dev, file);
+	}
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close);
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.c
new file mode 100644
index 000000000..9006b947e
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -0,0 +1,376 @@
+/* exynos_drm_crtc.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_encoder.h"
+#include "exynos_drm_plane.h"
+
+static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+	DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
+
+	if (exynos_crtc->dpms == mode) {
+		DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+		return;
+	}
+
+	if (mode > DRM_MODE_DPMS_ON) {
+		/* wait for the completion of page flip. */
+		if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
+				(exynos_crtc->event == NULL), HZ/20))
+			exynos_crtc->event = NULL;
+		drm_crtc_vblank_off(crtc);
+	}
+
+	if (exynos_crtc->ops->dpms)
+		exynos_crtc->ops->dpms(exynos_crtc, mode);
+
+	exynos_crtc->dpms = mode;
+
+	if (mode == DRM_MODE_DPMS_ON)
+		drm_crtc_vblank_on(crtc);
+}
+
+static void exynos_drm_crtc_prepare(struct drm_crtc *crtc)
+{
+	/* drm framework doesn't check NULL. */
+}
+
+static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct exynos_drm_plane *exynos_plane = to_exynos_plane(crtc->primary);
+
+	exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+
+	if (exynos_crtc->ops->win_commit)
+		exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
+
+	if (exynos_crtc->ops->commit)
+		exynos_crtc->ops->commit(exynos_crtc);
+}
+
+static bool
+exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
+			    const struct drm_display_mode *mode,
+			    struct drm_display_mode *adjusted_mode)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+	if (exynos_crtc->ops->mode_fixup)
+		return exynos_crtc->ops->mode_fixup(exynos_crtc, mode,
+						    adjusted_mode);
+
+	return true;
+}
+
+static int
+exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
+			  struct drm_display_mode *adjusted_mode, int x, int y,
+			  struct drm_framebuffer *old_fb)
+{
+	struct drm_framebuffer *fb = crtc->primary->fb;
+	unsigned int crtc_w;
+	unsigned int crtc_h;
+	int ret;
+
+	/*
+	 * copy the mode data adjusted by mode_fixup() into crtc->mode
+	 * so that hardware can be seet to proper mode.
+	 */
+	memcpy(&crtc->mode, adjusted_mode, sizeof(*adjusted_mode));
+
+	ret = exynos_check_plane(crtc->primary, fb);
+	if (ret < 0)
+		return ret;
+
+	crtc_w = fb->width - x;
+	crtc_h = fb->height - y;
+	exynos_plane_mode_set(crtc->primary, crtc, fb, 0, 0,
+			      crtc_w, crtc_h, x, y, crtc_w, crtc_h);
+
+	return 0;
+}
+
+static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+					  struct drm_framebuffer *old_fb)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct drm_framebuffer *fb = crtc->primary->fb;
+	unsigned int crtc_w;
+	unsigned int crtc_h;
+
+	/* when framebuffer changing is requested, crtc's dpms should be on */
+	if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
+		DRM_ERROR("failed framebuffer changing request.\n");
+		return -EPERM;
+	}
+
+	crtc_w = fb->width - x;
+	crtc_h = fb->height - y;
+
+	return exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
+				   crtc_w, crtc_h, x, y, crtc_w, crtc_h);
+}
+
+static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
+{
+	struct drm_plane *plane;
+	int ret;
+
+	exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	drm_for_each_legacy_plane(plane, &crtc->dev->mode_config.plane_list) {
+		if (plane->crtc != crtc)
+			continue;
+
+		ret = plane->funcs->disable_plane(plane);
+		if (ret)
+			DRM_ERROR("Failed to disable plane %d\n", ret);
+	}
+}
+
+static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
+	.dpms		= exynos_drm_crtc_dpms,
+	.prepare	= exynos_drm_crtc_prepare,
+	.commit		= exynos_drm_crtc_commit,
+	.mode_fixup	= exynos_drm_crtc_mode_fixup,
+	.mode_set	= exynos_drm_crtc_mode_set,
+	.mode_set_base	= exynos_drm_crtc_mode_set_base,
+	.disable	= exynos_drm_crtc_disable,
+};
+
+static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
+				     struct drm_framebuffer *fb,
+				     struct drm_pending_vblank_event *event,
+				     uint32_t page_flip_flags)
+{
+	struct drm_device *dev = crtc->dev;
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct drm_framebuffer *old_fb = crtc->primary->fb;
+	unsigned int crtc_w, crtc_h;
+	int ret;
+
+	/* when the page flip is requested, crtc's dpms should be on */
+	if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
+		DRM_ERROR("failed page flip request.\n");
+		return -EINVAL;
+	}
+
+	if (!event)
+		return -EINVAL;
+
+	spin_lock_irq(&dev->event_lock);
+	if (exynos_crtc->event) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	ret = drm_vblank_get(dev, exynos_crtc->pipe);
+	if (ret) {
+		DRM_DEBUG("failed to acquire vblank counter\n");
+		goto out;
+	}
+
+	exynos_crtc->event = event;
+	spin_unlock_irq(&dev->event_lock);
+
+	/*
+	 * the pipe from user always is 0 so we can set pipe number
+	 * of current owner to event.
+	 */
+	event->pipe = exynos_crtc->pipe;
+
+	crtc->primary->fb = fb;
+	crtc_w = fb->width - crtc->x;
+	crtc_h = fb->height - crtc->y;
+	ret = exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
+				  crtc_w, crtc_h, crtc->x, crtc->y,
+				  crtc_w, crtc_h);
+	if (ret) {
+		crtc->primary->fb = old_fb;
+		spin_lock_irq(&dev->event_lock);
+		exynos_crtc->event = NULL;
+		drm_vblank_put(dev, exynos_crtc->pipe);
+		spin_unlock_irq(&dev->event_lock);
+		return ret;
+	}
+
+	return 0;
+
+out:
+	spin_unlock_irq(&dev->event_lock);
+	return ret;
+}
+
+static void exynos_drm_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct exynos_drm_private *private = crtc->dev->dev_private;
+
+	private->crtc[exynos_crtc->pipe] = NULL;
+
+	drm_crtc_cleanup(crtc);
+	kfree(exynos_crtc);
+}
+
+static struct drm_crtc_funcs exynos_crtc_funcs = {
+	.set_config	= drm_crtc_helper_set_config,
+	.page_flip	= exynos_drm_crtc_page_flip,
+	.destroy	= exynos_drm_crtc_destroy,
+};
+
+struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
+					struct drm_plane *plane,
+					int pipe,
+					enum exynos_drm_output_type type,
+					const struct exynos_drm_crtc_ops *ops,
+					void *ctx)
+{
+	struct exynos_drm_crtc *exynos_crtc;
+	struct exynos_drm_private *private = drm_dev->dev_private;
+	struct drm_crtc *crtc;
+	int ret;
+
+	exynos_crtc = kzalloc(sizeof(*exynos_crtc), GFP_KERNEL);
+	if (!exynos_crtc)
+		return ERR_PTR(-ENOMEM);
+
+	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
+
+	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
+	exynos_crtc->pipe = pipe;
+	exynos_crtc->type = type;
+	exynos_crtc->ops = ops;
+	exynos_crtc->ctx = ctx;
+
+	crtc = &exynos_crtc->base;
+
+	private->crtc[pipe] = crtc;
+
+	ret = drm_crtc_init_with_planes(drm_dev, crtc, plane, NULL,
+					&exynos_crtc_funcs);
+	if (ret < 0)
+		goto err_crtc;
+
+	drm_crtc_helper_add(crtc, &exynos_crtc_helper_funcs);
+
+	return exynos_crtc;
+
+err_crtc:
+	plane->funcs->destroy(plane);
+	kfree(exynos_crtc);
+	return ERR_PTR(ret);
+}
+
+int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_crtc *exynos_crtc =
+		to_exynos_crtc(private->crtc[pipe]);
+
+	if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+		return -EPERM;
+
+	if (exynos_crtc->ops->enable_vblank)
+		exynos_crtc->ops->enable_vblank(exynos_crtc);
+
+	return 0;
+}
+
+void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_crtc *exynos_crtc =
+		to_exynos_crtc(private->crtc[pipe]);
+
+	if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+		return;
+
+	if (exynos_crtc->ops->disable_vblank)
+		exynos_crtc->ops->disable_vblank(exynos_crtc);
+}
+
+void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
+{
+	struct exynos_drm_private *dev_priv = dev->dev_private;
+	struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	if (exynos_crtc->event) {
+
+		drm_send_vblank_event(dev, -1, exynos_crtc->event);
+		drm_vblank_put(dev, pipe);
+		wake_up(&exynos_crtc->pending_flip_queue);
+
+	}
+
+	exynos_crtc->event = NULL;
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb)
+{
+	struct exynos_drm_crtc *exynos_crtc;
+	struct drm_device *dev = fb->dev;
+	struct drm_crtc *crtc;
+
+	/*
+	 * make sure that overlay data are updated to real hardware
+	 * for all encoders.
+	 */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		exynos_crtc = to_exynos_crtc(crtc);
+
+		/*
+		 * wait for vblank interrupt
+		 * - this makes sure that overlay data are updated to
+		 *	real hardware.
+		 */
+		if (exynos_crtc->ops->wait_for_vblank)
+			exynos_crtc->ops->wait_for_vblank(exynos_crtc);
+	}
+}
+
+int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
+					unsigned int out_type)
+{
+	struct drm_crtc *crtc;
+
+	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
+		struct exynos_drm_crtc *exynos_crtc;
+
+		exynos_crtc = to_exynos_crtc(crtc);
+		if (exynos_crtc->type == out_type)
+			return exynos_crtc->pipe;
+	}
+
+	return -EPERM;
+}
+
+void exynos_drm_crtc_te_handler(struct drm_crtc *crtc)
+{
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+	if (exynos_crtc->ops->te_handler)
+		exynos_crtc->ops->te_handler(exynos_crtc);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.h
new file mode 100644
index 000000000..0f3aa7081
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -0,0 +1,42 @@
+/* exynos_drm_crtc.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_CRTC_H_
+#define _EXYNOS_DRM_CRTC_H_
+
+#include "exynos_drm_drv.h"
+
+struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
+					struct drm_plane *plane,
+					int pipe,
+					enum exynos_drm_output_type type,
+					const struct exynos_drm_crtc_ops *ops,
+					void *context);
+int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe);
+void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe);
+void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe);
+void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb);
+
+/* This function gets pipe value to crtc device matched with out_type. */
+int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
+					unsigned int out_type);
+
+/*
+ * This function calls the crtc device(manager)'s te_handler() callback
+ * to trigger to transfer video image at the tearing effect synchronization
+ * signal.
+ */
+void exynos_drm_crtc_te_handler(struct drm_crtc *crtc);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
new file mode 100644
index 000000000..cd485c091
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
@@ -0,0 +1,286 @@
+/* exynos_drm_dmabuf.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "exynos_drm_dmabuf.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+
+#include <linux/dma-buf.h>
+
+struct exynos_drm_dmabuf_attachment {
+	struct sg_table sgt;
+	enum dma_data_direction dir;
+	bool is_mapped;
+};
+
+static struct exynos_drm_gem_obj *dma_buf_to_obj(struct dma_buf *buf)
+{
+	return to_exynos_gem_obj(buf->priv);
+}
+
+static int exynos_gem_attach_dma_buf(struct dma_buf *dmabuf,
+					struct device *dev,
+					struct dma_buf_attachment *attach)
+{
+	struct exynos_drm_dmabuf_attachment *exynos_attach;
+
+	exynos_attach = kzalloc(sizeof(*exynos_attach), GFP_KERNEL);
+	if (!exynos_attach)
+		return -ENOMEM;
+
+	exynos_attach->dir = DMA_NONE;
+	attach->priv = exynos_attach;
+
+	return 0;
+}
+
+static void exynos_gem_detach_dma_buf(struct dma_buf *dmabuf,
+					struct dma_buf_attachment *attach)
+{
+	struct exynos_drm_dmabuf_attachment *exynos_attach = attach->priv;
+	struct sg_table *sgt;
+
+	if (!exynos_attach)
+		return;
+
+	sgt = &exynos_attach->sgt;
+
+	if (exynos_attach->dir != DMA_NONE)
+		dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents,
+				exynos_attach->dir);
+
+	sg_free_table(sgt);
+	kfree(exynos_attach);
+	attach->priv = NULL;
+}
+
+static struct sg_table *
+		exynos_gem_map_dma_buf(struct dma_buf_attachment *attach,
+					enum dma_data_direction dir)
+{
+	struct exynos_drm_dmabuf_attachment *exynos_attach = attach->priv;
+	struct exynos_drm_gem_obj *gem_obj = dma_buf_to_obj(attach->dmabuf);
+	struct drm_device *dev = gem_obj->base.dev;
+	struct exynos_drm_gem_buf *buf;
+	struct scatterlist *rd, *wr;
+	struct sg_table *sgt = NULL;
+	unsigned int i;
+	int nents, ret;
+
+	/* just return current sgt if already requested. */
+	if (exynos_attach->dir == dir && exynos_attach->is_mapped)
+		return &exynos_attach->sgt;
+
+	buf = gem_obj->buffer;
+	if (!buf) {
+		DRM_ERROR("buffer is null.\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	sgt = &exynos_attach->sgt;
+
+	ret = sg_alloc_table(sgt, buf->sgt->orig_nents, GFP_KERNEL);
+	if (ret) {
+		DRM_ERROR("failed to alloc sgt.\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	mutex_lock(&dev->struct_mutex);
+
+	rd = buf->sgt->sgl;
+	wr = sgt->sgl;
+	for (i = 0; i < sgt->orig_nents; ++i) {
+		sg_set_page(wr, sg_page(rd), rd->length, rd->offset);
+		rd = sg_next(rd);
+		wr = sg_next(wr);
+	}
+
+	if (dir != DMA_NONE) {
+		nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir);
+		if (!nents) {
+			DRM_ERROR("failed to map sgl with iommu.\n");
+			sg_free_table(sgt);
+			sgt = ERR_PTR(-EIO);
+			goto err_unlock;
+		}
+	}
+
+	exynos_attach->is_mapped = true;
+	exynos_attach->dir = dir;
+	attach->priv = exynos_attach;
+
+	DRM_DEBUG_PRIME("buffer size = 0x%lx\n", buf->size);
+
+err_unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return sgt;
+}
+
+static void exynos_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
+						struct sg_table *sgt,
+						enum dma_data_direction dir)
+{
+	/* Nothing to do. */
+}
+
+static void *exynos_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
+						unsigned long page_num)
+{
+	/* TODO */
+
+	return NULL;
+}
+
+static void exynos_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
+						unsigned long page_num,
+						void *addr)
+{
+	/* TODO */
+}
+
+static void *exynos_gem_dmabuf_kmap(struct dma_buf *dma_buf,
+					unsigned long page_num)
+{
+	/* TODO */
+
+	return NULL;
+}
+
+static void exynos_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
+					unsigned long page_num, void *addr)
+{
+	/* TODO */
+}
+
+static int exynos_gem_dmabuf_mmap(struct dma_buf *dma_buf,
+	struct vm_area_struct *vma)
+{
+	return -ENOTTY;
+}
+
+static struct dma_buf_ops exynos_dmabuf_ops = {
+	.attach			= exynos_gem_attach_dma_buf,
+	.detach			= exynos_gem_detach_dma_buf,
+	.map_dma_buf		= exynos_gem_map_dma_buf,
+	.unmap_dma_buf		= exynos_gem_unmap_dma_buf,
+	.kmap			= exynos_gem_dmabuf_kmap,
+	.kmap_atomic		= exynos_gem_dmabuf_kmap_atomic,
+	.kunmap			= exynos_gem_dmabuf_kunmap,
+	.kunmap_atomic		= exynos_gem_dmabuf_kunmap_atomic,
+	.mmap			= exynos_gem_dmabuf_mmap,
+	.release		= drm_gem_dmabuf_release,
+};
+
+struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev,
+				struct drm_gem_object *obj, int flags)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
+	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+	exp_info.ops = &exynos_dmabuf_ops;
+	exp_info.size = exynos_gem_obj->base.size;
+	exp_info.flags = flags;
+	exp_info.priv = obj;
+
+	return dma_buf_export(&exp_info);
+}
+
+struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
+				struct dma_buf *dma_buf)
+{
+	struct dma_buf_attachment *attach;
+	struct sg_table *sgt;
+	struct scatterlist *sgl;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_gem_buf *buffer;
+	int ret;
+
+	/* is this one of own objects? */
+	if (dma_buf->ops == &exynos_dmabuf_ops) {
+		struct drm_gem_object *obj;
+
+		obj = dma_buf->priv;
+
+		/* is it from our device? */
+		if (obj->dev == drm_dev) {
+			/*
+			 * Importing dmabuf exported from out own gem increases
+			 * refcount on gem itself instead of f_count of dmabuf.
+			 */
+			drm_gem_object_reference(obj);
+			return obj;
+		}
+	}
+
+	attach = dma_buf_attach(dma_buf, drm_dev->dev);
+	if (IS_ERR(attach))
+		return ERR_PTR(-EINVAL);
+
+	get_dma_buf(dma_buf);
+
+	sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
+	if (IS_ERR(sgt)) {
+		ret = PTR_ERR(sgt);
+		goto err_buf_detach;
+	}
+
+	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+	if (!buffer) {
+		ret = -ENOMEM;
+		goto err_unmap_attach;
+	}
+
+	exynos_gem_obj = exynos_drm_gem_init(drm_dev, dma_buf->size);
+	if (!exynos_gem_obj) {
+		ret = -ENOMEM;
+		goto err_free_buffer;
+	}
+
+	sgl = sgt->sgl;
+
+	buffer->size = dma_buf->size;
+	buffer->dma_addr = sg_dma_address(sgl);
+
+	if (sgt->nents == 1) {
+		/* always physically continuous memory if sgt->nents is 1. */
+		exynos_gem_obj->flags |= EXYNOS_BO_CONTIG;
+	} else {
+		/*
+		 * this case could be CONTIG or NONCONTIG type but for now
+		 * sets NONCONTIG.
+		 * TODO. we have to find a way that exporter can notify
+		 * the type of its own buffer to importer.
+		 */
+		exynos_gem_obj->flags |= EXYNOS_BO_NONCONTIG;
+	}
+
+	exynos_gem_obj->buffer = buffer;
+	buffer->sgt = sgt;
+	exynos_gem_obj->base.import_attach = attach;
+
+	DRM_DEBUG_PRIME("dma_addr = %pad, size = 0x%lx\n", &buffer->dma_addr,
+								buffer->size);
+
+	return &exynos_gem_obj->base;
+
+err_free_buffer:
+	kfree(buffer);
+	buffer = NULL;
+err_unmap_attach:
+	dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);
+err_buf_detach:
+	dma_buf_detach(dma_buf, attach);
+	dma_buf_put(dma_buf);
+
+	return ERR_PTR(ret);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h
new file mode 100644
index 000000000..886de9ff4
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h
@@ -0,0 +1,20 @@
+/* exynos_drm_dmabuf.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_DMABUF_H_
+#define _EXYNOS_DRM_DMABUF_H_
+
+struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev,
+				struct drm_gem_object *obj, int flags);
+
+struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
+						struct dma_buf *dma_buf);
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c
new file mode 100644
index 000000000..37678cf44
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -0,0 +1,353 @@
+/*
+ * Exynos DRM Parallel output support.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd
+ *
+ * Contacts: Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
+
+#include <linux/regulator/consumer.h>
+
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include "exynos_drm_drv.h"
+
+struct exynos_dpi {
+	struct exynos_drm_display display;
+	struct device *dev;
+	struct device_node *panel_node;
+
+	struct drm_panel *panel;
+	struct drm_connector connector;
+	struct drm_encoder *encoder;
+
+	struct videomode *vm;
+	int dpms_mode;
+};
+
+#define connector_to_dpi(c) container_of(c, struct exynos_dpi, connector)
+
+static inline struct exynos_dpi *display_to_dpi(struct exynos_drm_display *d)
+{
+	return container_of(d, struct exynos_dpi, display);
+}
+
+static enum drm_connector_status
+exynos_dpi_detect(struct drm_connector *connector, bool force)
+{
+	struct exynos_dpi *ctx = connector_to_dpi(connector);
+
+	if (ctx->panel && !ctx->panel->connector)
+		drm_panel_attach(ctx->panel, &ctx->connector);
+
+	return connector_status_connected;
+}
+
+static void exynos_dpi_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs exynos_dpi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = exynos_dpi_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = exynos_dpi_connector_destroy,
+};
+
+static int exynos_dpi_get_modes(struct drm_connector *connector)
+{
+	struct exynos_dpi *ctx = connector_to_dpi(connector);
+
+	/* fimd timings gets precedence over panel modes */
+	if (ctx->vm) {
+		struct drm_display_mode *mode;
+
+		mode = drm_mode_create(connector->dev);
+		if (!mode) {
+			DRM_ERROR("failed to create a new display mode\n");
+			return 0;
+		}
+		drm_display_mode_from_videomode(ctx->vm, mode);
+		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+		drm_mode_probed_add(connector, mode);
+		return 1;
+	}
+
+	if (ctx->panel)
+		return ctx->panel->funcs->get_modes(ctx->panel);
+
+	return 0;
+}
+
+static struct drm_encoder *
+exynos_dpi_best_encoder(struct drm_connector *connector)
+{
+	struct exynos_dpi *ctx = connector_to_dpi(connector);
+
+	return ctx->encoder;
+}
+
+static struct drm_connector_helper_funcs exynos_dpi_connector_helper_funcs = {
+	.get_modes = exynos_dpi_get_modes,
+	.best_encoder = exynos_dpi_best_encoder,
+};
+
+static int exynos_dpi_create_connector(struct exynos_drm_display *display,
+				       struct drm_encoder *encoder)
+{
+	struct exynos_dpi *ctx = display_to_dpi(display);
+	struct drm_connector *connector = &ctx->connector;
+	int ret;
+
+	ctx->encoder = encoder;
+
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	ret = drm_connector_init(encoder->dev, connector,
+				 &exynos_dpi_connector_funcs,
+				 DRM_MODE_CONNECTOR_VGA);
+	if (ret) {
+		DRM_ERROR("failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	drm_connector_helper_add(connector, &exynos_dpi_connector_helper_funcs);
+	drm_connector_register(connector);
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	return 0;
+}
+
+static void exynos_dpi_poweron(struct exynos_dpi *ctx)
+{
+	if (ctx->panel) {
+		drm_panel_prepare(ctx->panel);
+		drm_panel_enable(ctx->panel);
+	}
+}
+
+static void exynos_dpi_poweroff(struct exynos_dpi *ctx)
+{
+	if (ctx->panel) {
+		drm_panel_disable(ctx->panel);
+		drm_panel_unprepare(ctx->panel);
+	}
+}
+
+static void exynos_dpi_dpms(struct exynos_drm_display *display, int mode)
+{
+	struct exynos_dpi *ctx = display_to_dpi(display);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		if (ctx->dpms_mode != DRM_MODE_DPMS_ON)
+				exynos_dpi_poweron(ctx);
+			break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		if (ctx->dpms_mode == DRM_MODE_DPMS_ON)
+			exynos_dpi_poweroff(ctx);
+		break;
+	default:
+		break;
+	}
+	ctx->dpms_mode = mode;
+}
+
+static struct exynos_drm_display_ops exynos_dpi_display_ops = {
+	.create_connector = exynos_dpi_create_connector,
+	.dpms = exynos_dpi_dpms
+};
+
+/* of_* functions will be removed after merge of of_graph patches */
+static struct device_node *
+of_get_child_by_name_reg(struct device_node *parent, const char *name, u32 reg)
+{
+	struct device_node *np;
+
+	for_each_child_of_node(parent, np) {
+		u32 r;
+
+		if (!np->name || of_node_cmp(np->name, name))
+			continue;
+
+		if (of_property_read_u32(np, "reg", &r) < 0)
+			r = 0;
+
+		if (reg == r)
+			break;
+	}
+
+	return np;
+}
+
+static struct device_node *of_graph_get_port_by_reg(struct device_node *parent,
+						    u32 reg)
+{
+	struct device_node *ports, *port;
+
+	ports = of_get_child_by_name(parent, "ports");
+	if (ports)
+		parent = ports;
+
+	port = of_get_child_by_name_reg(parent, "port", reg);
+
+	of_node_put(ports);
+
+	return port;
+}
+
+static struct device_node *
+of_graph_get_endpoint_by_reg(struct device_node *port, u32 reg)
+{
+	return of_get_child_by_name_reg(port, "endpoint", reg);
+}
+
+static struct device_node *
+of_graph_get_remote_port_parent(const struct device_node *node)
+{
+	struct device_node *np;
+	unsigned int depth;
+
+	np = of_parse_phandle(node, "remote-endpoint", 0);
+
+	/* Walk 3 levels up only if there is 'ports' node. */
+	for (depth = 3; depth && np; depth--) {
+		np = of_get_next_parent(np);
+		if (depth == 2 && of_node_cmp(np->name, "ports"))
+			break;
+	}
+	return np;
+}
+
+enum {
+	FIMD_PORT_IN0,
+	FIMD_PORT_IN1,
+	FIMD_PORT_IN2,
+	FIMD_PORT_RGB,
+	FIMD_PORT_WRB,
+};
+
+static struct device_node *exynos_dpi_of_find_panel_node(struct device *dev)
+{
+	struct device_node *np, *ep;
+
+	np = of_graph_get_port_by_reg(dev->of_node, FIMD_PORT_RGB);
+	if (!np)
+		return NULL;
+
+	ep = of_graph_get_endpoint_by_reg(np, 0);
+	of_node_put(np);
+	if (!ep)
+		return NULL;
+
+	np = of_graph_get_remote_port_parent(ep);
+	of_node_put(ep);
+
+	return np;
+}
+
+static int exynos_dpi_parse_dt(struct exynos_dpi *ctx)
+{
+	struct device *dev = ctx->dev;
+	struct device_node *dn = dev->of_node;
+	struct device_node *np;
+
+	ctx->panel_node = exynos_dpi_of_find_panel_node(dev);
+
+	np = of_get_child_by_name(dn, "display-timings");
+	if (np) {
+		struct videomode *vm;
+		int ret;
+
+		of_node_put(np);
+
+		vm = devm_kzalloc(dev, sizeof(*ctx->vm), GFP_KERNEL);
+		if (!vm)
+			return -ENOMEM;
+
+		ret = of_get_videomode(dn, vm, 0);
+		if (ret < 0) {
+			devm_kfree(dev, vm);
+			return ret;
+		}
+
+		ctx->vm = vm;
+
+		return 0;
+	}
+
+	if (!ctx->panel_node)
+		return -EINVAL;
+
+	return 0;
+}
+
+struct exynos_drm_display *exynos_dpi_probe(struct device *dev)
+{
+	struct exynos_dpi *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return ERR_PTR(-ENOMEM);
+
+	ctx->display.type = EXYNOS_DISPLAY_TYPE_LCD;
+	ctx->display.ops = &exynos_dpi_display_ops;
+	ctx->dev = dev;
+	ctx->dpms_mode = DRM_MODE_DPMS_OFF;
+
+	ret = exynos_drm_component_add(dev,
+					EXYNOS_DEVICE_TYPE_CONNECTOR,
+					ctx->display.type);
+	if (ret)
+		return ERR_PTR(ret);
+
+	ret = exynos_dpi_parse_dt(ctx);
+	if (ret < 0) {
+		devm_kfree(dev, ctx);
+		goto err_del_component;
+	}
+
+	if (ctx->panel_node) {
+		ctx->panel = of_drm_find_panel(ctx->panel_node);
+		if (!ctx->panel) {
+			exynos_drm_component_del(dev,
+						EXYNOS_DEVICE_TYPE_CONNECTOR);
+			return ERR_PTR(-EPROBE_DEFER);
+		}
+	}
+
+	return &ctx->display;
+
+err_del_component:
+	exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return NULL;
+}
+
+int exynos_dpi_remove(struct exynos_drm_display *display)
+{
+	struct exynos_dpi *ctx = display_to_dpi(display);
+
+	exynos_dpi_dpms(&ctx->display, DRM_MODE_DPMS_OFF);
+
+	if (ctx->panel)
+		drm_panel_detach(ctx->panel);
+
+	exynos_drm_component_del(ctx->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return 0;
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.c
new file mode 100644
index 000000000..8ac465208
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -0,0 +1,707 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/pm_runtime.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include <linux/component.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_encoder.h"
+#include "exynos_drm_fbdev.h"
+#include "exynos_drm_fb.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_plane.h"
+#include "exynos_drm_vidi.h"
+#include "exynos_drm_dmabuf.h"
+#include "exynos_drm_g2d.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_iommu.h"
+
+#define DRIVER_NAME	"exynos"
+#define DRIVER_DESC	"Samsung SoC DRM"
+#define DRIVER_DATE	"20110530"
+#define DRIVER_MAJOR	1
+#define DRIVER_MINOR	0
+
+static struct platform_device *exynos_drm_pdev;
+
+static DEFINE_MUTEX(drm_component_lock);
+static LIST_HEAD(drm_component_list);
+
+struct component_dev {
+	struct list_head list;
+	struct device *crtc_dev;
+	struct device *conn_dev;
+	enum exynos_drm_output_type out_type;
+	unsigned int dev_type_flag;
+};
+
+static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
+{
+	struct exynos_drm_private *private;
+	int ret;
+
+	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
+	if (!private)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev->dev, dev);
+	dev->dev_private = (void *)private;
+
+	/*
+	 * create mapping to manage iommu table and set a pointer to iommu
+	 * mapping structure to iommu_mapping of private data.
+	 * also this iommu_mapping can be used to check if iommu is supported
+	 * or not.
+	 */
+	ret = drm_create_iommu_mapping(dev);
+	if (ret < 0) {
+		DRM_ERROR("failed to create iommu mapping.\n");
+		goto err_free_private;
+	}
+
+	drm_mode_config_init(dev);
+
+	exynos_drm_mode_config_init(dev);
+
+	/* setup possible_clones. */
+	exynos_drm_encoder_setup(dev);
+
+	platform_set_drvdata(dev->platformdev, dev);
+
+	/* Try to bind all sub drivers. */
+	ret = component_bind_all(dev->dev, dev);
+	if (ret)
+		goto err_mode_config_cleanup;
+
+	ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+	if (ret)
+		goto err_unbind_all;
+
+	/* Probe non kms sub drivers and virtual display driver. */
+	ret = exynos_drm_device_subdrv_probe(dev);
+	if (ret)
+		goto err_cleanup_vblank;
+
+	/*
+	 * enable drm irq mode.
+	 * - with irq_enabled = true, we can use the vblank feature.
+	 *
+	 * P.S. note that we wouldn't use drm irq handler but
+	 *	just specific driver own one instead because
+	 *	drm framework supports only one irq handler.
+	 */
+	dev->irq_enabled = true;
+
+	/*
+	 * with vblank_disable_allowed = true, vblank interrupt will be disabled
+	 * by drm timer once a current process gives up ownership of
+	 * vblank event.(after drm_vblank_put function is called)
+	 */
+	dev->vblank_disable_allowed = true;
+
+	/* init kms poll for handling hpd */
+	drm_kms_helper_poll_init(dev);
+
+	/* force connectors detection */
+	drm_helper_hpd_irq_event(dev);
+
+	return 0;
+
+err_cleanup_vblank:
+	drm_vblank_cleanup(dev);
+err_unbind_all:
+	component_unbind_all(dev->dev, dev);
+err_mode_config_cleanup:
+	drm_mode_config_cleanup(dev);
+	drm_release_iommu_mapping(dev);
+err_free_private:
+	kfree(private);
+
+	return ret;
+}
+
+static int exynos_drm_unload(struct drm_device *dev)
+{
+	exynos_drm_device_subdrv_remove(dev);
+
+	exynos_drm_fbdev_fini(dev);
+	drm_kms_helper_poll_fini(dev);
+
+	drm_vblank_cleanup(dev);
+	component_unbind_all(dev->dev, dev);
+	drm_mode_config_cleanup(dev);
+	drm_release_iommu_mapping(dev);
+
+	kfree(dev->dev_private);
+	dev->dev_private = NULL;
+
+	return 0;
+}
+
+static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
+{
+	struct drm_connector *connector;
+
+	drm_modeset_lock_all(dev);
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		int old_dpms = connector->dpms;
+
+		if (connector->funcs->dpms)
+			connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
+
+		/* Set the old mode back to the connector for resume */
+		connector->dpms = old_dpms;
+	}
+	drm_modeset_unlock_all(dev);
+
+	return 0;
+}
+
+static int exynos_drm_resume(struct drm_device *dev)
+{
+	struct drm_connector *connector;
+
+	drm_modeset_lock_all(dev);
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		if (connector->funcs->dpms) {
+			int dpms = connector->dpms;
+
+			connector->dpms = DRM_MODE_DPMS_OFF;
+			connector->funcs->dpms(connector, dpms);
+		}
+	}
+	drm_modeset_unlock_all(dev);
+
+	return 0;
+}
+
+static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv;
+	int ret;
+
+	file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
+	if (!file_priv)
+		return -ENOMEM;
+
+	file->driver_priv = file_priv;
+
+	ret = exynos_drm_subdrv_open(dev, file);
+	if (ret)
+		goto err_file_priv_free;
+
+	return ret;
+
+err_file_priv_free:
+	kfree(file_priv);
+	file->driver_priv = NULL;
+	return ret;
+}
+
+static void exynos_drm_preclose(struct drm_device *dev,
+					struct drm_file *file)
+{
+	exynos_drm_subdrv_close(dev, file);
+}
+
+static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct drm_pending_event *e, *et;
+	unsigned long flags;
+
+	if (!file->driver_priv)
+		return;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	/* Release all events handled by page flip handler but not freed. */
+	list_for_each_entry_safe(e, et, &file->event_list, link) {
+		list_del(&e->link);
+		e->destroy(e);
+	}
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	kfree(file->driver_priv);
+	file->driver_priv = NULL;
+}
+
+static void exynos_drm_lastclose(struct drm_device *dev)
+{
+	exynos_drm_fbdev_restore_mode(dev);
+}
+
+static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
+	.fault = exynos_drm_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
+static const struct drm_ioctl_desc exynos_ioctls[] = {
+	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
+			DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
+			exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
+			vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
+			exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
+			exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
+			exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
+			exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
+			exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
+			exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
+			exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
+};
+
+static const struct file_operations exynos_drm_driver_fops = {
+	.owner		= THIS_MODULE,
+	.open		= drm_open,
+	.mmap		= exynos_drm_gem_mmap,
+	.poll		= drm_poll,
+	.read		= drm_read,
+	.unlocked_ioctl	= drm_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
+	.release	= drm_release,
+};
+
+static struct drm_driver exynos_drm_driver = {
+	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
+	.load			= exynos_drm_load,
+	.unload			= exynos_drm_unload,
+	.suspend		= exynos_drm_suspend,
+	.resume			= exynos_drm_resume,
+	.open			= exynos_drm_open,
+	.preclose		= exynos_drm_preclose,
+	.lastclose		= exynos_drm_lastclose,
+	.postclose		= exynos_drm_postclose,
+	.set_busid		= drm_platform_set_busid,
+	.get_vblank_counter	= drm_vblank_count,
+	.enable_vblank		= exynos_drm_crtc_enable_vblank,
+	.disable_vblank		= exynos_drm_crtc_disable_vblank,
+	.gem_free_object	= exynos_drm_gem_free_object,
+	.gem_vm_ops		= &exynos_drm_gem_vm_ops,
+	.dumb_create		= exynos_drm_gem_dumb_create,
+	.dumb_map_offset	= exynos_drm_gem_dumb_map_offset,
+	.dumb_destroy		= drm_gem_dumb_destroy,
+	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
+	.gem_prime_export	= exynos_dmabuf_prime_export,
+	.gem_prime_import	= exynos_dmabuf_prime_import,
+	.ioctls			= exynos_ioctls,
+	.num_ioctls		= ARRAY_SIZE(exynos_ioctls),
+	.fops			= &exynos_drm_driver_fops,
+	.name	= DRIVER_NAME,
+	.desc	= DRIVER_DESC,
+	.date	= DRIVER_DATE,
+	.major	= DRIVER_MAJOR,
+	.minor	= DRIVER_MINOR,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int exynos_drm_sys_suspend(struct device *dev)
+{
+	struct drm_device *drm_dev = dev_get_drvdata(dev);
+	pm_message_t message;
+
+	if (pm_runtime_suspended(dev) || !drm_dev)
+		return 0;
+
+	message.event = PM_EVENT_SUSPEND;
+	return exynos_drm_suspend(drm_dev, message);
+}
+
+static int exynos_drm_sys_resume(struct device *dev)
+{
+	struct drm_device *drm_dev = dev_get_drvdata(dev);
+
+	if (pm_runtime_suspended(dev) || !drm_dev)
+		return 0;
+
+	return exynos_drm_resume(drm_dev);
+}
+#endif
+
+static const struct dev_pm_ops exynos_drm_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
+};
+
+int exynos_drm_component_add(struct device *dev,
+				enum exynos_drm_device_type dev_type,
+				enum exynos_drm_output_type out_type)
+{
+	struct component_dev *cdev;
+
+	if (dev_type != EXYNOS_DEVICE_TYPE_CRTC &&
+			dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) {
+		DRM_ERROR("invalid device type.\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&drm_component_lock);
+
+	/*
+	 * Make sure to check if there is a component which has two device
+	 * objects, for connector and for encoder/connector.
+	 * It should make sure that crtc and encoder/connector drivers are
+	 * ready before exynos drm core binds them.
+	 */
+	list_for_each_entry(cdev, &drm_component_list, list) {
+		if (cdev->out_type == out_type) {
+			/*
+			 * If crtc and encoder/connector device objects are
+			 * added already just return.
+			 */
+			if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC |
+						EXYNOS_DEVICE_TYPE_CONNECTOR)) {
+				mutex_unlock(&drm_component_lock);
+				return 0;
+			}
+
+			if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
+				cdev->crtc_dev = dev;
+				cdev->dev_type_flag |= dev_type;
+			}
+
+			if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
+				cdev->conn_dev = dev;
+				cdev->dev_type_flag |= dev_type;
+			}
+
+			mutex_unlock(&drm_component_lock);
+			return 0;
+		}
+	}
+
+	mutex_unlock(&drm_component_lock);
+
+	cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
+	if (!cdev)
+		return -ENOMEM;
+
+	if (dev_type == EXYNOS_DEVICE_TYPE_CRTC)
+		cdev->crtc_dev = dev;
+	if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR)
+		cdev->conn_dev = dev;
+
+	cdev->out_type = out_type;
+	cdev->dev_type_flag = dev_type;
+
+	mutex_lock(&drm_component_lock);
+	list_add_tail(&cdev->list, &drm_component_list);
+	mutex_unlock(&drm_component_lock);
+
+	return 0;
+}
+
+void exynos_drm_component_del(struct device *dev,
+				enum exynos_drm_device_type dev_type)
+{
+	struct component_dev *cdev, *next;
+
+	mutex_lock(&drm_component_lock);
+
+	list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+		if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
+			if (cdev->crtc_dev == dev) {
+				cdev->crtc_dev = NULL;
+				cdev->dev_type_flag &= ~dev_type;
+			}
+		}
+
+		if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
+			if (cdev->conn_dev == dev) {
+				cdev->conn_dev = NULL;
+				cdev->dev_type_flag &= ~dev_type;
+			}
+		}
+
+		/*
+		 * Release cdev object only in case that both of crtc and
+		 * encoder/connector device objects are NULL.
+		 */
+		if (!cdev->crtc_dev && !cdev->conn_dev) {
+			list_del(&cdev->list);
+			kfree(cdev);
+		}
+	}
+
+	mutex_unlock(&drm_component_lock);
+}
+
+static int compare_dev(struct device *dev, void *data)
+{
+	return dev == (struct device *)data;
+}
+
+static struct component_match *exynos_drm_match_add(struct device *dev)
+{
+	struct component_match *match = NULL;
+	struct component_dev *cdev;
+	unsigned int attach_cnt = 0;
+
+	mutex_lock(&drm_component_lock);
+
+	/* Do not retry to probe if there is no any kms driver regitered. */
+	if (list_empty(&drm_component_list)) {
+		mutex_unlock(&drm_component_lock);
+		return ERR_PTR(-ENODEV);
+	}
+
+	list_for_each_entry(cdev, &drm_component_list, list) {
+		/*
+		 * Add components to master only in case that crtc and
+		 * encoder/connector device objects exist.
+		 */
+		if (!cdev->crtc_dev || !cdev->conn_dev)
+			continue;
+
+		attach_cnt++;
+
+		mutex_unlock(&drm_component_lock);
+
+		/*
+		 * fimd and dpi modules have same device object so add
+		 * only crtc device object in this case.
+		 */
+		if (cdev->crtc_dev == cdev->conn_dev) {
+			component_match_add(dev, &match, compare_dev,
+						cdev->crtc_dev);
+			goto out_lock;
+		}
+
+		/*
+		 * Do not chage below call order.
+		 * crtc device first should be added to master because
+		 * connector/encoder need pipe number of crtc when they
+		 * are created.
+		 */
+		component_match_add(dev, &match, compare_dev, cdev->crtc_dev);
+		component_match_add(dev, &match, compare_dev, cdev->conn_dev);
+
+out_lock:
+		mutex_lock(&drm_component_lock);
+	}
+
+	mutex_unlock(&drm_component_lock);
+
+	return attach_cnt ? match : ERR_PTR(-EPROBE_DEFER);
+}
+
+static int exynos_drm_bind(struct device *dev)
+{
+	return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
+}
+
+static void exynos_drm_unbind(struct device *dev)
+{
+	drm_put_dev(dev_get_drvdata(dev));
+}
+
+static const struct component_master_ops exynos_drm_ops = {
+	.bind		= exynos_drm_bind,
+	.unbind		= exynos_drm_unbind,
+};
+
+static struct platform_driver *const exynos_drm_kms_drivers[] = {
+#ifdef CONFIG_DRM_EXYNOS_FIMD
+	&fimd_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS7_DECON
+	&decon_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_DP
+	&dp_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_DSI
+	&dsi_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_HDMI
+	&mixer_driver,
+	&hdmi_driver,
+#endif
+};
+
+static struct platform_driver *const exynos_drm_non_kms_drivers[] = {
+#ifdef CONFIG_DRM_EXYNOS_G2D
+	&g2d_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_FIMC
+	&fimc_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_ROTATOR
+	&rotator_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_GSC
+	&gsc_driver,
+#endif
+#ifdef CONFIG_DRM_EXYNOS_IPP
+	&ipp_driver,
+#endif
+};
+
+static int exynos_drm_platform_probe(struct platform_device *pdev)
+{
+	struct component_match *match;
+
+	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
+
+	match = exynos_drm_match_add(&pdev->dev);
+	if (IS_ERR(match)) {
+		return PTR_ERR(match);
+	}
+
+	return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
+					       match);
+}
+
+static int exynos_drm_platform_remove(struct platform_device *pdev)
+{
+	component_master_del(&pdev->dev, &exynos_drm_ops);
+	return 0;
+}
+
+static const char * const strings[] = {
+	"samsung,exynos3",
+	"samsung,exynos4",
+	"samsung,exynos5",
+	"samsung,exynos7",
+};
+
+static struct platform_driver exynos_drm_platform_driver = {
+	.probe	= exynos_drm_platform_probe,
+	.remove	= exynos_drm_platform_remove,
+	.driver	= {
+		.name	= "exynos-drm",
+		.pm	= &exynos_drm_pm_ops,
+	},
+};
+
+static int exynos_drm_init(void)
+{
+	bool is_exynos = false;
+	int ret, i, j;
+
+	/*
+	 * Register device object only in case of Exynos SoC.
+	 *
+	 * Below codes resolves temporarily infinite loop issue incurred
+	 * by Exynos drm driver when using multi-platform kernel.
+	 * So these codes will be replaced with more generic way later.
+	 */
+	for (i = 0; i < ARRAY_SIZE(strings); i++) {
+		if (of_machine_is_compatible(strings[i])) {
+			is_exynos = true;
+			break;
+		}
+	}
+
+	if (!is_exynos)
+		return -ENODEV;
+
+	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
+								NULL, 0);
+	if (IS_ERR(exynos_drm_pdev))
+		return PTR_ERR(exynos_drm_pdev);
+
+	ret = exynos_drm_probe_vidi();
+	if (ret < 0)
+		goto err_unregister_pd;
+
+	for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) {
+		ret = platform_driver_register(exynos_drm_kms_drivers[i]);
+		if (ret < 0)
+			goto err_unregister_kms_drivers;
+	}
+
+	for (j = 0; j < ARRAY_SIZE(exynos_drm_non_kms_drivers); ++j) {
+		ret = platform_driver_register(exynos_drm_non_kms_drivers[j]);
+		if (ret < 0)
+			goto err_unregister_non_kms_drivers;
+	}
+
+#ifdef CONFIG_DRM_EXYNOS_IPP
+	ret = exynos_platform_device_ipp_register();
+	if (ret < 0)
+		goto err_unregister_non_kms_drivers;
+#endif
+
+	ret = platform_driver_register(&exynos_drm_platform_driver);
+	if (ret)
+		goto err_unregister_resources;
+
+	return 0;
+
+err_unregister_resources:
+#ifdef CONFIG_DRM_EXYNOS_IPP
+	exynos_platform_device_ipp_unregister();
+#endif
+
+err_unregister_non_kms_drivers:
+	while (--j >= 0)
+		platform_driver_unregister(exynos_drm_non_kms_drivers[j]);
+
+err_unregister_kms_drivers:
+	while (--i >= 0)
+		platform_driver_unregister(exynos_drm_kms_drivers[i]);
+
+	exynos_drm_remove_vidi();
+
+err_unregister_pd:
+	platform_device_unregister(exynos_drm_pdev);
+
+	return ret;
+}
+
+static void exynos_drm_exit(void)
+{
+	int i;
+
+#ifdef CONFIG_DRM_EXYNOS_IPP
+	exynos_platform_device_ipp_unregister();
+#endif
+
+	for (i = ARRAY_SIZE(exynos_drm_non_kms_drivers) - 1; i >= 0; --i)
+		platform_driver_unregister(exynos_drm_non_kms_drivers[i]);
+
+	for (i = ARRAY_SIZE(exynos_drm_kms_drivers) - 1; i >= 0; --i)
+		platform_driver_unregister(exynos_drm_kms_drivers[i]);
+
+	platform_driver_unregister(&exynos_drm_platform_driver);
+
+	exynos_drm_remove_vidi();
+
+	platform_device_unregister(exynos_drm_pdev);
+}
+
+module_init(exynos_drm_init);
+module_exit(exynos_drm_exit);
+
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
+MODULE_DESCRIPTION("Samsung SoC DRM Driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.h
new file mode 100644
index 000000000..29e3fb78c
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -0,0 +1,349 @@
+/* exynos_drm_drv.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_DRV_H_
+#define _EXYNOS_DRM_DRV_H_
+
+#include <drm/drmP.h>
+#include <linux/module.h>
+
+#define MAX_CRTC	3
+#define MAX_PLANE	5
+#define MAX_FB_BUFFER	4
+
+#define to_exynos_crtc(x)	container_of(x, struct exynos_drm_crtc, base)
+#define to_exynos_plane(x)	container_of(x, struct exynos_drm_plane, base)
+
+/* This enumerates device type. */
+enum exynos_drm_device_type {
+	EXYNOS_DEVICE_TYPE_NONE,
+	EXYNOS_DEVICE_TYPE_CRTC,
+	EXYNOS_DEVICE_TYPE_CONNECTOR,
+};
+
+/* this enumerates display type. */
+enum exynos_drm_output_type {
+	EXYNOS_DISPLAY_TYPE_NONE,
+	/* RGB or CPU Interface. */
+	EXYNOS_DISPLAY_TYPE_LCD,
+	/* HDMI Interface. */
+	EXYNOS_DISPLAY_TYPE_HDMI,
+	/* Virtual Display Interface. */
+	EXYNOS_DISPLAY_TYPE_VIDI,
+};
+
+/*
+ * Exynos drm common overlay structure.
+ *
+ * @base: plane object
+ * @src_x: offset x on a framebuffer to be displayed.
+ *	- the unit is screen coordinates.
+ * @src_y: offset y on a framebuffer to be displayed.
+ *	- the unit is screen coordinates.
+ * @src_width: width of a partial image to be displayed from framebuffer.
+ * @src_height: height of a partial image to be displayed from framebuffer.
+ * @fb_width: width of a framebuffer.
+ * @fb_height: height of a framebuffer.
+ * @crtc_x: offset x on hardware screen.
+ * @crtc_y: offset y on hardware screen.
+ * @crtc_width: window width to be displayed (hardware screen).
+ * @crtc_height: window height to be displayed (hardware screen).
+ * @mode_width: width of screen mode.
+ * @mode_height: height of screen mode.
+ * @h_ratio: horizontal scaling ratio, 16.16 fixed point
+ * @v_ratio: vertical scaling ratio, 16.16 fixed point
+ * @refresh: refresh rate.
+ * @scan_flag: interlace or progressive way.
+ *	(it could be DRM_MODE_FLAG_*)
+ * @bpp: pixel size.(in bit)
+ * @pixel_format: fourcc pixel format of this overlay
+ * @dma_addr: array of bus(accessed by dma) address to the memory region
+ *	      allocated for a overlay.
+ * @zpos: order of overlay layer(z position).
+ * @enabled: enabled or not.
+ * @resume: to resume or not.
+ *
+ * this structure is common to exynos SoC and its contents would be copied
+ * to hardware specific overlay info.
+ */
+
+struct exynos_drm_plane {
+	struct drm_plane base;
+	unsigned int src_x;
+	unsigned int src_y;
+	unsigned int src_width;
+	unsigned int src_height;
+	unsigned int fb_width;
+	unsigned int fb_height;
+	unsigned int crtc_x;
+	unsigned int crtc_y;
+	unsigned int crtc_width;
+	unsigned int crtc_height;
+	unsigned int mode_width;
+	unsigned int mode_height;
+	unsigned int h_ratio;
+	unsigned int v_ratio;
+	unsigned int refresh;
+	unsigned int scan_flag;
+	unsigned int bpp;
+	unsigned int pitch;
+	uint32_t pixel_format;
+	dma_addr_t dma_addr[MAX_FB_BUFFER];
+	unsigned int zpos;
+
+	bool enabled:1;
+	bool resume:1;
+};
+
+/*
+ * Exynos DRM Display Structure.
+ *	- this structure is common to analog tv, digital tv and lcd panel.
+ *
+ * @create_connector: initialize and register a new connector
+ * @remove: cleans up the display for removal
+ * @mode_fixup: fix mode data comparing to hw specific display mode.
+ * @mode_set: convert drm_display_mode to hw specific display mode and
+ *	      would be called by encoder->mode_set().
+ * @check_mode: check if mode is valid or not.
+ * @dpms: display device on or off.
+ * @commit: apply changes to hw
+ */
+struct exynos_drm_display;
+struct exynos_drm_display_ops {
+	int (*create_connector)(struct exynos_drm_display *display,
+				struct drm_encoder *encoder);
+	void (*remove)(struct exynos_drm_display *display);
+	void (*mode_fixup)(struct exynos_drm_display *display,
+				struct drm_connector *connector,
+				const struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode);
+	void (*mode_set)(struct exynos_drm_display *display,
+				struct drm_display_mode *mode);
+	int (*check_mode)(struct exynos_drm_display *display,
+				struct drm_display_mode *mode);
+	void (*dpms)(struct exynos_drm_display *display, int mode);
+	void (*commit)(struct exynos_drm_display *display);
+};
+
+/*
+ * Exynos drm display structure, maps 1:1 with an encoder/connector
+ *
+ * @list: the list entry for this manager
+ * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
+ * @encoder: encoder object this display maps to
+ * @connector: connector object this display maps to
+ * @ops: pointer to callbacks for exynos drm specific functionality
+ * @ctx: A pointer to the display's implementation specific context
+ */
+struct exynos_drm_display {
+	struct list_head list;
+	enum exynos_drm_output_type type;
+	struct drm_encoder *encoder;
+	struct drm_connector *connector;
+	struct exynos_drm_display_ops *ops;
+};
+
+/*
+ * Exynos drm crtc ops
+ *
+ * @dpms: control device power.
+ * @mode_fixup: fix mode data before applying it
+ * @commit: set current hw specific display mode to hw.
+ * @enable_vblank: specific driver callback for enabling vblank interrupt.
+ * @disable_vblank: specific driver callback for disabling vblank interrupt.
+ * @wait_for_vblank: wait for vblank interrupt to make sure that
+ *	hardware overlay is updated.
+ * @win_commit: apply hardware specific overlay data to registers.
+ * @win_disable: disable hardware specific overlay.
+ * @te_handler: trigger to transfer video image at the tearing effect
+ *	synchronization signal if there is a page flip request.
+ * @clock_enable: optional function enabling/disabling display domain clock,
+ *	called from exynos-dp driver before powering up (with
+ *	'enable' argument as true) and after powering down (with
+ *	'enable' as false).
+ */
+struct exynos_drm_crtc;
+struct exynos_drm_crtc_ops {
+	void (*dpms)(struct exynos_drm_crtc *crtc, int mode);
+	bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
+				const struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode);
+	void (*commit)(struct exynos_drm_crtc *crtc);
+	int (*enable_vblank)(struct exynos_drm_crtc *crtc);
+	void (*disable_vblank)(struct exynos_drm_crtc *crtc);
+	void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);
+	void (*win_commit)(struct exynos_drm_crtc *crtc, unsigned int zpos);
+	void (*win_disable)(struct exynos_drm_crtc *crtc, unsigned int zpos);
+	void (*te_handler)(struct exynos_drm_crtc *crtc);
+	void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);
+};
+
+/*
+ * Exynos specific crtc structure.
+ *
+ * @base: crtc object.
+ * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
+ * @pipe: a crtc index created at load() with a new crtc object creation
+ *	and the crtc object would be set to private->crtc array
+ *	to get a crtc object corresponding to this pipe from private->crtc
+ *	array when irq interrupt occurred. the reason of using this pipe is that
+ *	drm framework doesn't support multiple irq yet.
+ *	we can refer to the crtc to current hardware interrupt occurred through
+ *	this pipe value.
+ * @dpms: store the crtc dpms value
+ * @event: vblank event that is currently queued for flip
+ * @ops: pointer to callbacks for exynos drm specific functionality
+ * @ctx: A pointer to the crtc's implementation specific context
+ */
+struct exynos_drm_crtc {
+	struct drm_crtc			base;
+	enum exynos_drm_output_type	type;
+	unsigned int			pipe;
+	unsigned int			dpms;
+	wait_queue_head_t		pending_flip_queue;
+	struct drm_pending_vblank_event	*event;
+	const struct exynos_drm_crtc_ops	*ops;
+	void				*ctx;
+};
+
+struct exynos_drm_g2d_private {
+	struct device		*dev;
+	struct list_head	inuse_cmdlist;
+	struct list_head	event_list;
+	struct list_head	userptr_list;
+};
+
+struct drm_exynos_file_private {
+	struct exynos_drm_g2d_private	*g2d_priv;
+	struct device			*ipp_dev;
+};
+
+/*
+ * Exynos drm private structure.
+ *
+ * @da_start: start address to device address space.
+ *	with iommu, device address space starts from this address
+ *	otherwise default one.
+ * @da_space_size: size of device address space.
+ *	if 0 then default value is used for it.
+ * @pipe: the pipe number for this crtc/manager.
+ */
+struct exynos_drm_private {
+	struct drm_fb_helper *fb_helper;
+
+	/*
+	 * created crtc object would be contained at this array and
+	 * this array is used to be aware of which crtc did it request vblank.
+	 */
+	struct drm_crtc *crtc[MAX_CRTC];
+	struct drm_property *plane_zpos_property;
+
+	unsigned long da_start;
+	unsigned long da_space_size;
+
+	unsigned int pipe;
+};
+
+/*
+ * Exynos drm sub driver structure.
+ *
+ * @list: sub driver has its own list object to register to exynos drm driver.
+ * @dev: pointer to device object for subdrv device driver.
+ * @drm_dev: pointer to drm_device and this pointer would be set
+ *	when sub driver calls exynos_drm_subdrv_register().
+ * @probe: this callback would be called by exynos drm driver after
+ *     subdrv is registered to it.
+ * @remove: this callback is used to release resources created
+ *     by probe callback.
+ * @open: this would be called with drm device file open.
+ * @close: this would be called with drm device file close.
+ */
+struct exynos_drm_subdrv {
+	struct list_head list;
+	struct device *dev;
+	struct drm_device *drm_dev;
+
+	int (*probe)(struct drm_device *drm_dev, struct device *dev);
+	void (*remove)(struct drm_device *drm_dev, struct device *dev);
+	int (*open)(struct drm_device *drm_dev, struct device *dev,
+			struct drm_file *file);
+	void (*close)(struct drm_device *drm_dev, struct device *dev,
+			struct drm_file *file);
+};
+
+ /* This function would be called by non kms drivers such as g2d and ipp. */
+int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
+
+/* this function removes subdrv list from exynos drm driver */
+int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
+
+int exynos_drm_device_subdrv_probe(struct drm_device *dev);
+int exynos_drm_device_subdrv_remove(struct drm_device *dev);
+int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
+void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
+
+#ifdef CONFIG_DRM_EXYNOS_IPP
+int exynos_platform_device_ipp_register(void);
+void exynos_platform_device_ipp_unregister(void);
+#else
+static inline int exynos_platform_device_ipp_register(void) { return 0; }
+static inline void exynos_platform_device_ipp_unregister(void) {}
+#endif
+
+
+#ifdef CONFIG_DRM_EXYNOS_DPI
+struct exynos_drm_display * exynos_dpi_probe(struct device *dev);
+int exynos_dpi_remove(struct exynos_drm_display *display);
+#else
+static inline struct exynos_drm_display *
+exynos_dpi_probe(struct device *dev) { return NULL; }
+static inline int exynos_dpi_remove(struct exynos_drm_display *display)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_DRM_EXYNOS_VIDI
+int exynos_drm_probe_vidi(void);
+void exynos_drm_remove_vidi(void);
+#else
+static inline int exynos_drm_probe_vidi(void) { return 0; }
+static inline void exynos_drm_remove_vidi(void) {}
+#endif
+
+/* This function creates a encoder and a connector, and initializes them. */
+int exynos_drm_create_enc_conn(struct drm_device *dev,
+				struct exynos_drm_display *display);
+
+int exynos_drm_component_add(struct device *dev,
+				enum exynos_drm_device_type dev_type,
+				enum exynos_drm_output_type out_type);
+
+void exynos_drm_component_del(struct device *dev,
+				enum exynos_drm_device_type dev_type);
+
+extern struct platform_driver fimd_driver;
+extern struct platform_driver decon_driver;
+extern struct platform_driver dp_driver;
+extern struct platform_driver dsi_driver;
+extern struct platform_driver mixer_driver;
+extern struct platform_driver hdmi_driver;
+extern struct platform_driver exynos_drm_common_hdmi_driver;
+extern struct platform_driver vidi_driver;
+extern struct platform_driver g2d_driver;
+extern struct platform_driver fimc_driver;
+extern struct platform_driver rotator_driver;
+extern struct platform_driver gsc_driver;
+extern struct platform_driver ipp_driver;
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_dsi.c
new file mode 100644
index 000000000..04927153b
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -0,0 +1,1795 @@
+/*
+ * Samsung SoC MIPI DSI Master driver.
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd
+ *
+ * Contacts: Tomasz Figa <t.figa@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+#include <linux/clk.h>
+#include <linux/gpio/consumer.h>
+#include <linux/irq.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/phy/phy.h>
+#include <linux/regulator/consumer.h>
+#include <linux/component.h>
+
+#include <video/mipi_display.h>
+#include <video/videomode.h>
+
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_drv.h"
+
+/* returns true iff both arguments logically differs */
+#define NEQV(a, b) (!(a) ^ !(b))
+
+#define DSIM_STATUS_REG		0x0	/* Status register */
+#define DSIM_SWRST_REG		0x4	/* Software reset register */
+#define DSIM_CLKCTRL_REG	0x8	/* Clock control register */
+#define DSIM_TIMEOUT_REG	0xc	/* Time out register */
+#define DSIM_CONFIG_REG		0x10	/* Configuration register */
+#define DSIM_ESCMODE_REG	0x14	/* Escape mode register */
+
+/* Main display image resolution register */
+#define DSIM_MDRESOL_REG	0x18
+#define DSIM_MVPORCH_REG	0x1c	/* Main display Vporch register */
+#define DSIM_MHPORCH_REG	0x20	/* Main display Hporch register */
+#define DSIM_MSYNC_REG		0x24	/* Main display sync area register */
+
+/* Sub display image resolution register */
+#define DSIM_SDRESOL_REG	0x28
+#define DSIM_INTSRC_REG		0x2c	/* Interrupt source register */
+#define DSIM_INTMSK_REG		0x30	/* Interrupt mask register */
+#define DSIM_PKTHDR_REG		0x34	/* Packet Header FIFO register */
+#define DSIM_PAYLOAD_REG	0x38	/* Payload FIFO register */
+#define DSIM_RXFIFO_REG		0x3c	/* Read FIFO register */
+#define DSIM_FIFOTHLD_REG	0x40	/* FIFO threshold level register */
+#define DSIM_FIFOCTRL_REG	0x44	/* FIFO status and control register */
+
+/* FIFO memory AC characteristic register */
+#define DSIM_PLLCTRL_REG	0x4c	/* PLL control register */
+#define DSIM_PHYACCHR_REG	0x54	/* D-PHY AC characteristic register */
+#define DSIM_PHYACCHR1_REG	0x58	/* D-PHY AC characteristic register1 */
+#define DSIM_PHYCTRL_REG	0x5c
+#define DSIM_PHYTIMING_REG	0x64
+#define DSIM_PHYTIMING1_REG	0x68
+#define DSIM_PHYTIMING2_REG	0x6c
+
+/* DSIM_STATUS */
+#define DSIM_STOP_STATE_DAT(x)		(((x) & 0xf) << 0)
+#define DSIM_STOP_STATE_CLK		(1 << 8)
+#define DSIM_TX_READY_HS_CLK		(1 << 10)
+#define DSIM_PLL_STABLE			(1 << 31)
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST			(1 << 16)
+#define DSIM_SWRST			(1 << 0)
+
+/* DSIM_TIMEOUT */
+#define DSIM_LPDR_TIMEOUT(x)		((x) << 0)
+#define DSIM_BTA_TIMEOUT(x)		((x) << 16)
+
+/* DSIM_CLKCTRL */
+#define DSIM_ESC_PRESCALER(x)		(((x) & 0xffff) << 0)
+#define DSIM_ESC_PRESCALER_MASK		(0xffff << 0)
+#define DSIM_LANE_ESC_CLK_EN_CLK	(1 << 19)
+#define DSIM_LANE_ESC_CLK_EN_DATA(x)	(((x) & 0xf) << 20)
+#define DSIM_LANE_ESC_CLK_EN_DATA_MASK	(0xf << 20)
+#define DSIM_BYTE_CLKEN			(1 << 24)
+#define DSIM_BYTE_CLK_SRC(x)		(((x) & 0x3) << 25)
+#define DSIM_BYTE_CLK_SRC_MASK		(0x3 << 25)
+#define DSIM_PLL_BYPASS			(1 << 27)
+#define DSIM_ESC_CLKEN			(1 << 28)
+#define DSIM_TX_REQUEST_HSCLK		(1 << 31)
+
+/* DSIM_CONFIG */
+#define DSIM_LANE_EN_CLK		(1 << 0)
+#define DSIM_LANE_EN(x)			(((x) & 0xf) << 1)
+#define DSIM_NUM_OF_DATA_LANE(x)	(((x) & 0x3) << 5)
+#define DSIM_SUB_PIX_FORMAT(x)		(((x) & 0x7) << 8)
+#define DSIM_MAIN_PIX_FORMAT_MASK	(0x7 << 12)
+#define DSIM_MAIN_PIX_FORMAT_RGB888	(0x7 << 12)
+#define DSIM_MAIN_PIX_FORMAT_RGB666	(0x6 << 12)
+#define DSIM_MAIN_PIX_FORMAT_RGB666_P	(0x5 << 12)
+#define DSIM_MAIN_PIX_FORMAT_RGB565	(0x4 << 12)
+#define DSIM_SUB_VC			(((x) & 0x3) << 16)
+#define DSIM_MAIN_VC			(((x) & 0x3) << 18)
+#define DSIM_HSA_MODE			(1 << 20)
+#define DSIM_HBP_MODE			(1 << 21)
+#define DSIM_HFP_MODE			(1 << 22)
+#define DSIM_HSE_MODE			(1 << 23)
+#define DSIM_AUTO_MODE			(1 << 24)
+#define DSIM_VIDEO_MODE			(1 << 25)
+#define DSIM_BURST_MODE			(1 << 26)
+#define DSIM_SYNC_INFORM		(1 << 27)
+#define DSIM_EOT_DISABLE		(1 << 28)
+#define DSIM_MFLUSH_VS			(1 << 29)
+/* This flag is valid only for exynos3250/3472/4415/5260/5430 */
+#define DSIM_CLKLANE_STOP		(1 << 30)
+
+/* DSIM_ESCMODE */
+#define DSIM_TX_TRIGGER_RST		(1 << 4)
+#define DSIM_TX_LPDT_LP			(1 << 6)
+#define DSIM_CMD_LPDT_LP		(1 << 7)
+#define DSIM_FORCE_BTA			(1 << 16)
+#define DSIM_FORCE_STOP_STATE		(1 << 20)
+#define DSIM_STOP_STATE_CNT(x)		(((x) & 0x7ff) << 21)
+#define DSIM_STOP_STATE_CNT_MASK	(0x7ff << 21)
+
+/* DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY		(1 << 31)
+#define DSIM_MAIN_VRESOL(x)		(((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x)		(((x) & 0X7ff) << 0)
+
+/* DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW(x)		((x) << 28)
+#define DSIM_STABLE_VFP(x)		((x) << 16)
+#define DSIM_MAIN_VBP(x)		((x) << 0)
+#define DSIM_CMD_ALLOW_MASK		(0xf << 28)
+#define DSIM_STABLE_VFP_MASK		(0x7ff << 16)
+#define DSIM_MAIN_VBP_MASK		(0x7ff << 0)
+
+/* DSIM_MHPORCH */
+#define DSIM_MAIN_HFP(x)		((x) << 16)
+#define DSIM_MAIN_HBP(x)		((x) << 0)
+#define DSIM_MAIN_HFP_MASK		((0xffff) << 16)
+#define DSIM_MAIN_HBP_MASK		((0xffff) << 0)
+
+/* DSIM_MSYNC */
+#define DSIM_MAIN_VSA(x)		((x) << 22)
+#define DSIM_MAIN_HSA(x)		((x) << 0)
+#define DSIM_MAIN_VSA_MASK		((0x3ff) << 22)
+#define DSIM_MAIN_HSA_MASK		((0xffff) << 0)
+
+/* DSIM_SDRESOL */
+#define DSIM_SUB_STANDY(x)		((x) << 31)
+#define DSIM_SUB_VRESOL(x)		((x) << 16)
+#define DSIM_SUB_HRESOL(x)		((x) << 0)
+#define DSIM_SUB_STANDY_MASK		((0x1) << 31)
+#define DSIM_SUB_VRESOL_MASK		((0x7ff) << 16)
+#define DSIM_SUB_HRESOL_MASK		((0x7ff) << 0)
+
+/* DSIM_INTSRC */
+#define DSIM_INT_PLL_STABLE		(1 << 31)
+#define DSIM_INT_SW_RST_RELEASE		(1 << 30)
+#define DSIM_INT_SFR_FIFO_EMPTY		(1 << 29)
+#define DSIM_INT_BTA			(1 << 25)
+#define DSIM_INT_FRAME_DONE		(1 << 24)
+#define DSIM_INT_RX_TIMEOUT		(1 << 21)
+#define DSIM_INT_BTA_TIMEOUT		(1 << 20)
+#define DSIM_INT_RX_DONE		(1 << 18)
+#define DSIM_INT_RX_TE			(1 << 17)
+#define DSIM_INT_RX_ACK			(1 << 16)
+#define DSIM_INT_RX_ECC_ERR		(1 << 15)
+#define DSIM_INT_RX_CRC_ERR		(1 << 14)
+
+/* DSIM_FIFOCTRL */
+#define DSIM_RX_DATA_FULL		(1 << 25)
+#define DSIM_RX_DATA_EMPTY		(1 << 24)
+#define DSIM_SFR_HEADER_FULL		(1 << 23)
+#define DSIM_SFR_HEADER_EMPTY		(1 << 22)
+#define DSIM_SFR_PAYLOAD_FULL		(1 << 21)
+#define DSIM_SFR_PAYLOAD_EMPTY		(1 << 20)
+#define DSIM_I80_HEADER_FULL		(1 << 19)
+#define DSIM_I80_HEADER_EMPTY		(1 << 18)
+#define DSIM_I80_PAYLOAD_FULL		(1 << 17)
+#define DSIM_I80_PAYLOAD_EMPTY		(1 << 16)
+#define DSIM_SD_HEADER_FULL		(1 << 15)
+#define DSIM_SD_HEADER_EMPTY		(1 << 14)
+#define DSIM_SD_PAYLOAD_FULL		(1 << 13)
+#define DSIM_SD_PAYLOAD_EMPTY		(1 << 12)
+#define DSIM_MD_HEADER_FULL		(1 << 11)
+#define DSIM_MD_HEADER_EMPTY		(1 << 10)
+#define DSIM_MD_PAYLOAD_FULL		(1 << 9)
+#define DSIM_MD_PAYLOAD_EMPTY		(1 << 8)
+#define DSIM_RX_FIFO			(1 << 4)
+#define DSIM_SFR_FIFO			(1 << 3)
+#define DSIM_I80_FIFO			(1 << 2)
+#define DSIM_SD_FIFO			(1 << 1)
+#define DSIM_MD_FIFO			(1 << 0)
+
+/* DSIM_PHYACCHR */
+#define DSIM_AFC_EN			(1 << 14)
+#define DSIM_AFC_CTL(x)			(((x) & 0x7) << 5)
+
+/* DSIM_PLLCTRL */
+#define DSIM_FREQ_BAND(x)		((x) << 24)
+#define DSIM_PLL_EN			(1 << 23)
+#define DSIM_PLL_P(x)			((x) << 13)
+#define DSIM_PLL_M(x)			((x) << 4)
+#define DSIM_PLL_S(x)			((x) << 1)
+
+/* DSIM_PHYCTRL */
+#define DSIM_PHYCTRL_ULPS_EXIT(x)	(((x) & 0x1ff) << 0)
+
+/* DSIM_PHYTIMING */
+#define DSIM_PHYTIMING_LPX(x)		((x) << 8)
+#define DSIM_PHYTIMING_HS_EXIT(x)	((x) << 0)
+
+/* DSIM_PHYTIMING1 */
+#define DSIM_PHYTIMING1_CLK_PREPARE(x)	((x) << 24)
+#define DSIM_PHYTIMING1_CLK_ZERO(x)	((x) << 16)
+#define DSIM_PHYTIMING1_CLK_POST(x)	((x) << 8)
+#define DSIM_PHYTIMING1_CLK_TRAIL(x)	((x) << 0)
+
+/* DSIM_PHYTIMING2 */
+#define DSIM_PHYTIMING2_HS_PREPARE(x)	((x) << 16)
+#define DSIM_PHYTIMING2_HS_ZERO(x)	((x) << 8)
+#define DSIM_PHYTIMING2_HS_TRAIL(x)	((x) << 0)
+
+#define DSI_MAX_BUS_WIDTH		4
+#define DSI_NUM_VIRTUAL_CHANNELS	4
+#define DSI_TX_FIFO_SIZE		2048
+#define DSI_RX_FIFO_SIZE		256
+#define DSI_XFER_TIMEOUT_MS		100
+#define DSI_RX_FIFO_EMPTY		0x30800002
+
+enum exynos_dsi_transfer_type {
+	EXYNOS_DSI_TX,
+	EXYNOS_DSI_RX,
+};
+
+struct exynos_dsi_transfer {
+	struct list_head list;
+	struct completion completed;
+	int result;
+	u8 data_id;
+	u8 data[2];
+	u16 flags;
+
+	const u8 *tx_payload;
+	u16 tx_len;
+	u16 tx_done;
+
+	u8 *rx_payload;
+	u16 rx_len;
+	u16 rx_done;
+};
+
+#define DSIM_STATE_ENABLED		BIT(0)
+#define DSIM_STATE_INITIALIZED		BIT(1)
+#define DSIM_STATE_CMD_LPM		BIT(2)
+
+struct exynos_dsi_driver_data {
+	unsigned int plltmr_reg;
+
+	unsigned int has_freqband:1;
+	unsigned int has_clklane_stop:1;
+};
+
+struct exynos_dsi {
+	struct exynos_drm_display display;
+	struct mipi_dsi_host dsi_host;
+	struct drm_connector connector;
+	struct device_node *panel_node;
+	struct drm_panel *panel;
+	struct device *dev;
+
+	void __iomem *reg_base;
+	struct phy *phy;
+	struct clk *pll_clk;
+	struct clk *bus_clk;
+	struct regulator_bulk_data supplies[2];
+	int irq;
+	int te_gpio;
+
+	u32 pll_clk_rate;
+	u32 burst_clk_rate;
+	u32 esc_clk_rate;
+	u32 lanes;
+	u32 mode_flags;
+	u32 format;
+	struct videomode vm;
+
+	int state;
+	struct drm_property *brightness;
+	struct completion completed;
+
+	spinlock_t transfer_lock; /* protects transfer_list */
+	struct list_head transfer_list;
+
+	struct exynos_dsi_driver_data *driver_data;
+};
+
+#define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host)
+#define connector_to_dsi(c) container_of(c, struct exynos_dsi, connector)
+
+static inline struct exynos_dsi *display_to_dsi(struct exynos_drm_display *d)
+{
+	return container_of(d, struct exynos_dsi, display);
+}
+
+static struct exynos_dsi_driver_data exynos3_dsi_driver_data = {
+	.plltmr_reg = 0x50,
+	.has_freqband = 1,
+	.has_clklane_stop = 1,
+};
+
+static struct exynos_dsi_driver_data exynos4_dsi_driver_data = {
+	.plltmr_reg = 0x50,
+	.has_freqband = 1,
+	.has_clklane_stop = 1,
+};
+
+static struct exynos_dsi_driver_data exynos4415_dsi_driver_data = {
+	.plltmr_reg = 0x58,
+	.has_clklane_stop = 1,
+};
+
+static struct exynos_dsi_driver_data exynos5_dsi_driver_data = {
+	.plltmr_reg = 0x58,
+};
+
+static struct of_device_id exynos_dsi_of_match[] = {
+	{ .compatible = "samsung,exynos3250-mipi-dsi",
+	  .data = &exynos3_dsi_driver_data },
+	{ .compatible = "samsung,exynos4210-mipi-dsi",
+	  .data = &exynos4_dsi_driver_data },
+	{ .compatible = "samsung,exynos4415-mipi-dsi",
+	  .data = &exynos4415_dsi_driver_data },
+	{ .compatible = "samsung,exynos5410-mipi-dsi",
+	  .data = &exynos5_dsi_driver_data },
+	{ }
+};
+
+static inline struct exynos_dsi_driver_data *exynos_dsi_get_driver_data(
+						struct platform_device *pdev)
+{
+	const struct of_device_id *of_id =
+			of_match_device(exynos_dsi_of_match, &pdev->dev);
+
+	return (struct exynos_dsi_driver_data *)of_id->data;
+}
+
+static void exynos_dsi_wait_for_reset(struct exynos_dsi *dsi)
+{
+	if (wait_for_completion_timeout(&dsi->completed, msecs_to_jiffies(300)))
+		return;
+
+	dev_err(dsi->dev, "timeout waiting for reset\n");
+}
+
+static void exynos_dsi_reset(struct exynos_dsi *dsi)
+{
+	reinit_completion(&dsi->completed);
+	writel(DSIM_SWRST, dsi->reg_base + DSIM_SWRST_REG);
+}
+
+#ifndef MHZ
+#define MHZ	(1000*1000)
+#endif
+
+static unsigned long exynos_dsi_pll_find_pms(struct exynos_dsi *dsi,
+		unsigned long fin, unsigned long fout, u8 *p, u16 *m, u8 *s)
+{
+	unsigned long best_freq = 0;
+	u32 min_delta = 0xffffffff;
+	u8 p_min, p_max;
+	u8 _p, uninitialized_var(best_p);
+	u16 _m, uninitialized_var(best_m);
+	u8 _s, uninitialized_var(best_s);
+
+	p_min = DIV_ROUND_UP(fin, (12 * MHZ));
+	p_max = fin / (6 * MHZ);
+
+	for (_p = p_min; _p <= p_max; ++_p) {
+		for (_s = 0; _s <= 5; ++_s) {
+			u64 tmp;
+			u32 delta;
+
+			tmp = (u64)fout * (_p << _s);
+			do_div(tmp, fin);
+			_m = tmp;
+			if (_m < 41 || _m > 125)
+				continue;
+
+			tmp = (u64)_m * fin;
+			do_div(tmp, _p);
+			if (tmp < 500 * MHZ || tmp > 1000 * MHZ)
+				continue;
+
+			tmp = (u64)_m * fin;
+			do_div(tmp, _p << _s);
+
+			delta = abs(fout - tmp);
+			if (delta < min_delta) {
+				best_p = _p;
+				best_m = _m;
+				best_s = _s;
+				min_delta = delta;
+				best_freq = tmp;
+			}
+		}
+	}
+
+	if (best_freq) {
+		*p = best_p;
+		*m = best_m;
+		*s = best_s;
+	}
+
+	return best_freq;
+}
+
+static unsigned long exynos_dsi_set_pll(struct exynos_dsi *dsi,
+					unsigned long freq)
+{
+	struct exynos_dsi_driver_data *driver_data = dsi->driver_data;
+	unsigned long fin, fout;
+	int timeout;
+	u8 p, s;
+	u16 m;
+	u32 reg;
+
+	clk_set_rate(dsi->pll_clk, dsi->pll_clk_rate);
+
+	fin = clk_get_rate(dsi->pll_clk);
+	if (!fin) {
+		dev_err(dsi->dev, "failed to get PLL clock frequency\n");
+		return 0;
+	}
+
+	dev_dbg(dsi->dev, "PLL input frequency: %lu\n", fin);
+
+	fout = exynos_dsi_pll_find_pms(dsi, fin, freq, &p, &m, &s);
+	if (!fout) {
+		dev_err(dsi->dev,
+			"failed to find PLL PMS for requested frequency\n");
+		return 0;
+	}
+	dev_dbg(dsi->dev, "PLL freq %lu, (p %d, m %d, s %d)\n", fout, p, m, s);
+
+	writel(500, dsi->reg_base + driver_data->plltmr_reg);
+
+	reg = DSIM_PLL_EN | DSIM_PLL_P(p) | DSIM_PLL_M(m) | DSIM_PLL_S(s);
+
+	if (driver_data->has_freqband) {
+		static const unsigned long freq_bands[] = {
+			100 * MHZ, 120 * MHZ, 160 * MHZ, 200 * MHZ,
+			270 * MHZ, 320 * MHZ, 390 * MHZ, 450 * MHZ,
+			510 * MHZ, 560 * MHZ, 640 * MHZ, 690 * MHZ,
+			770 * MHZ, 870 * MHZ, 950 * MHZ,
+		};
+		int band;
+
+		for (band = 0; band < ARRAY_SIZE(freq_bands); ++band)
+			if (fout < freq_bands[band])
+				break;
+
+		dev_dbg(dsi->dev, "band %d\n", band);
+
+		reg |= DSIM_FREQ_BAND(band);
+	}
+
+	writel(reg, dsi->reg_base + DSIM_PLLCTRL_REG);
+
+	timeout = 1000;
+	do {
+		if (timeout-- == 0) {
+			dev_err(dsi->dev, "PLL failed to stabilize\n");
+			return 0;
+		}
+		reg = readl(dsi->reg_base + DSIM_STATUS_REG);
+	} while ((reg & DSIM_PLL_STABLE) == 0);
+
+	return fout;
+}
+
+static int exynos_dsi_enable_clock(struct exynos_dsi *dsi)
+{
+	unsigned long hs_clk, byte_clk, esc_clk;
+	unsigned long esc_div;
+	u32 reg;
+
+	hs_clk = exynos_dsi_set_pll(dsi, dsi->burst_clk_rate);
+	if (!hs_clk) {
+		dev_err(dsi->dev, "failed to configure DSI PLL\n");
+		return -EFAULT;
+	}
+
+	byte_clk = hs_clk / 8;
+	esc_div = DIV_ROUND_UP(byte_clk, dsi->esc_clk_rate);
+	esc_clk = byte_clk / esc_div;
+
+	if (esc_clk > 20 * MHZ) {
+		++esc_div;
+		esc_clk = byte_clk / esc_div;
+	}
+
+	dev_dbg(dsi->dev, "hs_clk = %lu, byte_clk = %lu, esc_clk = %lu\n",
+		hs_clk, byte_clk, esc_clk);
+
+	reg = readl(dsi->reg_base + DSIM_CLKCTRL_REG);
+	reg &= ~(DSIM_ESC_PRESCALER_MASK | DSIM_LANE_ESC_CLK_EN_CLK
+			| DSIM_LANE_ESC_CLK_EN_DATA_MASK | DSIM_PLL_BYPASS
+			| DSIM_BYTE_CLK_SRC_MASK);
+	reg |= DSIM_ESC_CLKEN | DSIM_BYTE_CLKEN
+			| DSIM_ESC_PRESCALER(esc_div)
+			| DSIM_LANE_ESC_CLK_EN_CLK
+			| DSIM_LANE_ESC_CLK_EN_DATA(BIT(dsi->lanes) - 1)
+			| DSIM_BYTE_CLK_SRC(0)
+			| DSIM_TX_REQUEST_HSCLK;
+	writel(reg, dsi->reg_base + DSIM_CLKCTRL_REG);
+
+	return 0;
+}
+
+static void exynos_dsi_set_phy_ctrl(struct exynos_dsi *dsi)
+{
+	struct exynos_dsi_driver_data *driver_data = dsi->driver_data;
+	u32 reg;
+
+	if (driver_data->has_freqband)
+		return;
+
+	/* B D-PHY: D-PHY Master & Slave Analog Block control */
+	reg = DSIM_PHYCTRL_ULPS_EXIT(0x0af);
+	writel(reg, dsi->reg_base + DSIM_PHYCTRL_REG);
+
+	/*
+	 * T LPX: Transmitted length of any Low-Power state period
+	 * T HS-EXIT: Time that the transmitter drives LP-11 following a HS
+	 *	burst
+	 */
+	reg = DSIM_PHYTIMING_LPX(0x06) | DSIM_PHYTIMING_HS_EXIT(0x0b);
+	writel(reg, dsi->reg_base + DSIM_PHYTIMING_REG);
+
+	/*
+	 * T CLK-PREPARE: Time that the transmitter drives the Clock Lane LP-00
+	 *	Line state immediately before the HS-0 Line state starting the
+	 *	HS transmission
+	 * T CLK-ZERO: Time that the transmitter drives the HS-0 state prior to
+	 *	transmitting the Clock.
+	 * T CLK_POST: Time that the transmitter continues to send HS clock
+	 *	after the last associated Data Lane has transitioned to LP Mode
+	 *	Interval is defined as the period from the end of T HS-TRAIL to
+	 *	the beginning of T CLK-TRAIL
+	 * T CLK-TRAIL: Time that the transmitter drives the HS-0 state after
+	 *	the last payload clock bit of a HS transmission burst
+	 */
+	reg = DSIM_PHYTIMING1_CLK_PREPARE(0x07) |
+			DSIM_PHYTIMING1_CLK_ZERO(0x27) |
+			DSIM_PHYTIMING1_CLK_POST(0x0d) |
+			DSIM_PHYTIMING1_CLK_TRAIL(0x08);
+	writel(reg, dsi->reg_base + DSIM_PHYTIMING1_REG);
+
+	/*
+	 * T HS-PREPARE: Time that the transmitter drives the Data Lane LP-00
+	 *	Line state immediately before the HS-0 Line state starting the
+	 *	HS transmission
+	 * T HS-ZERO: Time that the transmitter drives the HS-0 state prior to
+	 *	transmitting the Sync sequence.
+	 * T HS-TRAIL: Time that the transmitter drives the flipped differential
+	 *	state after last payload data bit of a HS transmission burst
+	 */
+	reg = DSIM_PHYTIMING2_HS_PREPARE(0x09) | DSIM_PHYTIMING2_HS_ZERO(0x0d) |
+			DSIM_PHYTIMING2_HS_TRAIL(0x0b);
+	writel(reg, dsi->reg_base + DSIM_PHYTIMING2_REG);
+}
+
+static void exynos_dsi_disable_clock(struct exynos_dsi *dsi)
+{
+	u32 reg;
+
+	reg = readl(dsi->reg_base + DSIM_CLKCTRL_REG);
+	reg &= ~(DSIM_LANE_ESC_CLK_EN_CLK | DSIM_LANE_ESC_CLK_EN_DATA_MASK
+			| DSIM_ESC_CLKEN | DSIM_BYTE_CLKEN);
+	writel(reg, dsi->reg_base + DSIM_CLKCTRL_REG);
+
+	reg = readl(dsi->reg_base + DSIM_PLLCTRL_REG);
+	reg &= ~DSIM_PLL_EN;
+	writel(reg, dsi->reg_base + DSIM_PLLCTRL_REG);
+}
+
+static int exynos_dsi_init_link(struct exynos_dsi *dsi)
+{
+	struct exynos_dsi_driver_data *driver_data = dsi->driver_data;
+	int timeout;
+	u32 reg;
+	u32 lanes_mask;
+
+	/* Initialize FIFO pointers */
+	reg = readl(dsi->reg_base + DSIM_FIFOCTRL_REG);
+	reg &= ~0x1f;
+	writel(reg, dsi->reg_base + DSIM_FIFOCTRL_REG);
+
+	usleep_range(9000, 11000);
+
+	reg |= 0x1f;
+	writel(reg, dsi->reg_base + DSIM_FIFOCTRL_REG);
+
+	usleep_range(9000, 11000);
+
+	/* DSI configuration */
+	reg = 0;
+
+	/*
+	 * The first bit of mode_flags specifies display configuration.
+	 * If this bit is set[= MIPI_DSI_MODE_VIDEO], dsi will support video
+	 * mode, otherwise it will support command mode.
+	 */
+	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
+		reg |= DSIM_VIDEO_MODE;
+
+		/*
+		 * The user manual describes that following bits are ignored in
+		 * command mode.
+		 */
+		if (!(dsi->mode_flags & MIPI_DSI_MODE_VSYNC_FLUSH))
+			reg |= DSIM_MFLUSH_VS;
+		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+			reg |= DSIM_SYNC_INFORM;
+		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)
+			reg |= DSIM_BURST_MODE;
+		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_AUTO_VERT)
+			reg |= DSIM_AUTO_MODE;
+		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HSE)
+			reg |= DSIM_HSE_MODE;
+		if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HFP))
+			reg |= DSIM_HFP_MODE;
+		if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HBP))
+			reg |= DSIM_HBP_MODE;
+		if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HSA))
+			reg |= DSIM_HSA_MODE;
+	}
+
+	if (!(dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET))
+		reg |= DSIM_EOT_DISABLE;
+
+	switch (dsi->format) {
+	case MIPI_DSI_FMT_RGB888:
+		reg |= DSIM_MAIN_PIX_FORMAT_RGB888;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+		reg |= DSIM_MAIN_PIX_FORMAT_RGB666;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		reg |= DSIM_MAIN_PIX_FORMAT_RGB666_P;
+		break;
+	case MIPI_DSI_FMT_RGB565:
+		reg |= DSIM_MAIN_PIX_FORMAT_RGB565;
+		break;
+	default:
+		dev_err(dsi->dev, "invalid pixel format\n");
+		return -EINVAL;
+	}
+
+	reg |= DSIM_NUM_OF_DATA_LANE(dsi->lanes - 1);
+
+	writel(reg, dsi->reg_base + DSIM_CONFIG_REG);
+
+	reg |= DSIM_LANE_EN_CLK;
+	writel(reg, dsi->reg_base + DSIM_CONFIG_REG);
+
+	lanes_mask = BIT(dsi->lanes) - 1;
+	reg |= DSIM_LANE_EN(lanes_mask);
+	writel(reg, dsi->reg_base + DSIM_CONFIG_REG);
+
+	/*
+	 * Use non-continuous clock mode if the periparal wants and
+	 * host controller supports
+	 *
+	 * In non-continous clock mode, host controller will turn off
+	 * the HS clock between high-speed transmissions to reduce
+	 * power consumption.
+	 */
+	if (driver_data->has_clklane_stop &&
+			dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) {
+		reg |= DSIM_CLKLANE_STOP;
+		writel(reg, dsi->reg_base + DSIM_CONFIG_REG);
+	}
+
+	/* Check clock and data lane state are stop state */
+	timeout = 100;
+	do {
+		if (timeout-- == 0) {
+			dev_err(dsi->dev, "waiting for bus lanes timed out\n");
+			return -EFAULT;
+		}
+
+		reg = readl(dsi->reg_base + DSIM_STATUS_REG);
+		if ((reg & DSIM_STOP_STATE_DAT(lanes_mask))
+		    != DSIM_STOP_STATE_DAT(lanes_mask))
+			continue;
+	} while (!(reg & (DSIM_STOP_STATE_CLK | DSIM_TX_READY_HS_CLK)));
+
+	reg = readl(dsi->reg_base + DSIM_ESCMODE_REG);
+	reg &= ~DSIM_STOP_STATE_CNT_MASK;
+	reg |= DSIM_STOP_STATE_CNT(0xf);
+	writel(reg, dsi->reg_base + DSIM_ESCMODE_REG);
+
+	reg = DSIM_BTA_TIMEOUT(0xff) | DSIM_LPDR_TIMEOUT(0xffff);
+	writel(reg, dsi->reg_base + DSIM_TIMEOUT_REG);
+
+	return 0;
+}
+
+static void exynos_dsi_set_display_mode(struct exynos_dsi *dsi)
+{
+	struct videomode *vm = &dsi->vm;
+	u32 reg;
+
+	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
+		reg = DSIM_CMD_ALLOW(0xf)
+			| DSIM_STABLE_VFP(vm->vfront_porch)
+			| DSIM_MAIN_VBP(vm->vback_porch);
+		writel(reg, dsi->reg_base + DSIM_MVPORCH_REG);
+
+		reg = DSIM_MAIN_HFP(vm->hfront_porch)
+			| DSIM_MAIN_HBP(vm->hback_porch);
+		writel(reg, dsi->reg_base + DSIM_MHPORCH_REG);
+
+		reg = DSIM_MAIN_VSA(vm->vsync_len)
+			| DSIM_MAIN_HSA(vm->hsync_len);
+		writel(reg, dsi->reg_base + DSIM_MSYNC_REG);
+	}
+
+	reg = DSIM_MAIN_HRESOL(vm->hactive) | DSIM_MAIN_VRESOL(vm->vactive);
+	writel(reg, dsi->reg_base + DSIM_MDRESOL_REG);
+
+	dev_dbg(dsi->dev, "LCD size = %dx%d\n", vm->hactive, vm->vactive);
+}
+
+static void exynos_dsi_set_display_enable(struct exynos_dsi *dsi, bool enable)
+{
+	u32 reg;
+
+	reg = readl(dsi->reg_base + DSIM_MDRESOL_REG);
+	if (enable)
+		reg |= DSIM_MAIN_STAND_BY;
+	else
+		reg &= ~DSIM_MAIN_STAND_BY;
+	writel(reg, dsi->reg_base + DSIM_MDRESOL_REG);
+}
+
+static int exynos_dsi_wait_for_hdr_fifo(struct exynos_dsi *dsi)
+{
+	int timeout = 2000;
+
+	do {
+		u32 reg = readl(dsi->reg_base + DSIM_FIFOCTRL_REG);
+
+		if (!(reg & DSIM_SFR_HEADER_FULL))
+			return 0;
+
+		if (!cond_resched())
+			usleep_range(950, 1050);
+	} while (--timeout);
+
+	return -ETIMEDOUT;
+}
+
+static void exynos_dsi_set_cmd_lpm(struct exynos_dsi *dsi, bool lpm)
+{
+	u32 v = readl(dsi->reg_base + DSIM_ESCMODE_REG);
+
+	if (lpm)
+		v |= DSIM_CMD_LPDT_LP;
+	else
+		v &= ~DSIM_CMD_LPDT_LP;
+
+	writel(v, dsi->reg_base + DSIM_ESCMODE_REG);
+}
+
+static void exynos_dsi_force_bta(struct exynos_dsi *dsi)
+{
+	u32 v = readl(dsi->reg_base + DSIM_ESCMODE_REG);
+
+	v |= DSIM_FORCE_BTA;
+	writel(v, dsi->reg_base + DSIM_ESCMODE_REG);
+}
+
+static void exynos_dsi_send_to_fifo(struct exynos_dsi *dsi,
+					struct exynos_dsi_transfer *xfer)
+{
+	struct device *dev = dsi->dev;
+	const u8 *payload = xfer->tx_payload + xfer->tx_done;
+	u16 length = xfer->tx_len - xfer->tx_done;
+	bool first = !xfer->tx_done;
+	u32 reg;
+
+	dev_dbg(dev, "< xfer %p: tx len %u, done %u, rx len %u, done %u\n",
+		xfer, xfer->tx_len, xfer->tx_done, xfer->rx_len, xfer->rx_done);
+
+	if (length > DSI_TX_FIFO_SIZE)
+		length = DSI_TX_FIFO_SIZE;
+
+	xfer->tx_done += length;
+
+	/* Send payload */
+	while (length >= 4) {
+		reg = (payload[3] << 24) | (payload[2] << 16)
+					| (payload[1] << 8) | payload[0];
+		writel(reg, dsi->reg_base + DSIM_PAYLOAD_REG);
+		payload += 4;
+		length -= 4;
+	}
+
+	reg = 0;
+	switch (length) {
+	case 3:
+		reg |= payload[2] << 16;
+		/* Fall through */
+	case 2:
+		reg |= payload[1] << 8;
+		/* Fall through */
+	case 1:
+		reg |= payload[0];
+		writel(reg, dsi->reg_base + DSIM_PAYLOAD_REG);
+		break;
+	case 0:
+		/* Do nothing */
+		break;
+	}
+
+	/* Send packet header */
+	if (!first)
+		return;
+
+	reg = (xfer->data[1] << 16) | (xfer->data[0] << 8) | xfer->data_id;
+	if (exynos_dsi_wait_for_hdr_fifo(dsi)) {
+		dev_err(dev, "waiting for header FIFO timed out\n");
+		return;
+	}
+
+	if (NEQV(xfer->flags & MIPI_DSI_MSG_USE_LPM,
+		 dsi->state & DSIM_STATE_CMD_LPM)) {
+		exynos_dsi_set_cmd_lpm(dsi, xfer->flags & MIPI_DSI_MSG_USE_LPM);
+		dsi->state ^= DSIM_STATE_CMD_LPM;
+	}
+
+	writel(reg, dsi->reg_base + DSIM_PKTHDR_REG);
+
+	if (xfer->flags & MIPI_DSI_MSG_REQ_ACK)
+		exynos_dsi_force_bta(dsi);
+}
+
+static void exynos_dsi_read_from_fifo(struct exynos_dsi *dsi,
+					struct exynos_dsi_transfer *xfer)
+{
+	u8 *payload = xfer->rx_payload + xfer->rx_done;
+	bool first = !xfer->rx_done;
+	struct device *dev = dsi->dev;
+	u16 length;
+	u32 reg;
+
+	if (first) {
+		reg = readl(dsi->reg_base + DSIM_RXFIFO_REG);
+
+		switch (reg & 0x3f) {
+		case MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_2BYTE:
+		case MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_2BYTE:
+			if (xfer->rx_len >= 2) {
+				payload[1] = reg >> 16;
+				++xfer->rx_done;
+			}
+			/* Fall through */
+		case MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_1BYTE:
+		case MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_1BYTE:
+			payload[0] = reg >> 8;
+			++xfer->rx_done;
+			xfer->rx_len = xfer->rx_done;
+			xfer->result = 0;
+			goto clear_fifo;
+		case MIPI_DSI_RX_ACKNOWLEDGE_AND_ERROR_REPORT:
+			dev_err(dev, "DSI Error Report: 0x%04x\n",
+				(reg >> 8) & 0xffff);
+			xfer->result = 0;
+			goto clear_fifo;
+		}
+
+		length = (reg >> 8) & 0xffff;
+		if (length > xfer->rx_len) {
+			dev_err(dev,
+				"response too long (%u > %u bytes), stripping\n",
+				xfer->rx_len, length);
+			length = xfer->rx_len;
+		} else if (length < xfer->rx_len)
+			xfer->rx_len = length;
+	}
+
+	length = xfer->rx_len - xfer->rx_done;
+	xfer->rx_done += length;
+
+	/* Receive payload */
+	while (length >= 4) {
+		reg = readl(dsi->reg_base + DSIM_RXFIFO_REG);
+		payload[0] = (reg >>  0) & 0xff;
+		payload[1] = (reg >>  8) & 0xff;
+		payload[2] = (reg >> 16) & 0xff;
+		payload[3] = (reg >> 24) & 0xff;
+		payload += 4;
+		length -= 4;
+	}
+
+	if (length) {
+		reg = readl(dsi->reg_base + DSIM_RXFIFO_REG);
+		switch (length) {
+		case 3:
+			payload[2] = (reg >> 16) & 0xff;
+			/* Fall through */
+		case 2:
+			payload[1] = (reg >> 8) & 0xff;
+			/* Fall through */
+		case 1:
+			payload[0] = reg & 0xff;
+		}
+	}
+
+	if (xfer->rx_done == xfer->rx_len)
+		xfer->result = 0;
+
+clear_fifo:
+	length = DSI_RX_FIFO_SIZE / 4;
+	do {
+		reg = readl(dsi->reg_base + DSIM_RXFIFO_REG);
+		if (reg == DSI_RX_FIFO_EMPTY)
+			break;
+	} while (--length);
+}
+
+static void exynos_dsi_transfer_start(struct exynos_dsi *dsi)
+{
+	unsigned long flags;
+	struct exynos_dsi_transfer *xfer;
+	bool start = false;
+
+again:
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	if (list_empty(&dsi->transfer_list)) {
+		spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+		return;
+	}
+
+	xfer = list_first_entry(&dsi->transfer_list,
+					struct exynos_dsi_transfer, list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+
+	if (xfer->tx_len && xfer->tx_done == xfer->tx_len)
+		/* waiting for RX */
+		return;
+
+	exynos_dsi_send_to_fifo(dsi, xfer);
+
+	if (xfer->tx_len || xfer->rx_len)
+		return;
+
+	xfer->result = 0;
+	complete(&xfer->completed);
+
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	list_del_init(&xfer->list);
+	start = !list_empty(&dsi->transfer_list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+
+	if (start)
+		goto again;
+}
+
+static bool exynos_dsi_transfer_finish(struct exynos_dsi *dsi)
+{
+	struct exynos_dsi_transfer *xfer;
+	unsigned long flags;
+	bool start = true;
+
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	if (list_empty(&dsi->transfer_list)) {
+		spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+		return false;
+	}
+
+	xfer = list_first_entry(&dsi->transfer_list,
+					struct exynos_dsi_transfer, list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+
+	dev_dbg(dsi->dev,
+		"> xfer %p, tx_len %u, tx_done %u, rx_len %u, rx_done %u\n",
+		xfer, xfer->tx_len, xfer->tx_done, xfer->rx_len, xfer->rx_done);
+
+	if (xfer->tx_done != xfer->tx_len)
+		return true;
+
+	if (xfer->rx_done != xfer->rx_len)
+		exynos_dsi_read_from_fifo(dsi, xfer);
+
+	if (xfer->rx_done != xfer->rx_len)
+		return true;
+
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	list_del_init(&xfer->list);
+	start = !list_empty(&dsi->transfer_list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+
+	if (!xfer->rx_len)
+		xfer->result = 0;
+	complete(&xfer->completed);
+
+	return start;
+}
+
+static void exynos_dsi_remove_transfer(struct exynos_dsi *dsi,
+					struct exynos_dsi_transfer *xfer)
+{
+	unsigned long flags;
+	bool start;
+
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	if (!list_empty(&dsi->transfer_list) &&
+	    xfer == list_first_entry(&dsi->transfer_list,
+				     struct exynos_dsi_transfer, list)) {
+		list_del_init(&xfer->list);
+		start = !list_empty(&dsi->transfer_list);
+		spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+		if (start)
+			exynos_dsi_transfer_start(dsi);
+		return;
+	}
+
+	list_del_init(&xfer->list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+}
+
+static int exynos_dsi_transfer(struct exynos_dsi *dsi,
+					struct exynos_dsi_transfer *xfer)
+{
+	unsigned long flags;
+	bool stopped;
+
+	xfer->tx_done = 0;
+	xfer->rx_done = 0;
+	xfer->result = -ETIMEDOUT;
+	init_completion(&xfer->completed);
+
+	spin_lock_irqsave(&dsi->transfer_lock, flags);
+
+	stopped = list_empty(&dsi->transfer_list);
+	list_add_tail(&xfer->list, &dsi->transfer_list);
+
+	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
+
+	if (stopped)
+		exynos_dsi_transfer_start(dsi);
+
+	wait_for_completion_timeout(&xfer->completed,
+				    msecs_to_jiffies(DSI_XFER_TIMEOUT_MS));
+	if (xfer->result == -ETIMEDOUT) {
+		exynos_dsi_remove_transfer(dsi, xfer);
+		dev_err(dsi->dev, "xfer timed out: %*ph %*ph\n", 2, xfer->data,
+			xfer->tx_len, xfer->tx_payload);
+		return -ETIMEDOUT;
+	}
+
+	/* Also covers hardware timeout condition */
+	return xfer->result;
+}
+
+static irqreturn_t exynos_dsi_irq(int irq, void *dev_id)
+{
+	struct exynos_dsi *dsi = dev_id;
+	u32 status;
+
+	status = readl(dsi->reg_base + DSIM_INTSRC_REG);
+	if (!status) {
+		static unsigned long int j;
+		if (printk_timed_ratelimit(&j, 500))
+			dev_warn(dsi->dev, "spurious interrupt\n");
+		return IRQ_HANDLED;
+	}
+	writel(status, dsi->reg_base + DSIM_INTSRC_REG);
+
+	if (status & DSIM_INT_SW_RST_RELEASE) {
+		u32 mask = ~(DSIM_INT_RX_DONE | DSIM_INT_SFR_FIFO_EMPTY);
+		writel(mask, dsi->reg_base + DSIM_INTMSK_REG);
+		complete(&dsi->completed);
+		return IRQ_HANDLED;
+	}
+
+	if (!(status & (DSIM_INT_RX_DONE | DSIM_INT_SFR_FIFO_EMPTY)))
+		return IRQ_HANDLED;
+
+	if (exynos_dsi_transfer_finish(dsi))
+		exynos_dsi_transfer_start(dsi);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id)
+{
+	struct exynos_dsi *dsi = (struct exynos_dsi *)dev_id;
+	struct drm_encoder *encoder = dsi->display.encoder;
+
+	if (dsi->state & DSIM_STATE_ENABLED)
+		exynos_drm_crtc_te_handler(encoder->crtc);
+
+	return IRQ_HANDLED;
+}
+
+static void exynos_dsi_enable_irq(struct exynos_dsi *dsi)
+{
+	enable_irq(dsi->irq);
+
+	if (gpio_is_valid(dsi->te_gpio))
+		enable_irq(gpio_to_irq(dsi->te_gpio));
+}
+
+static void exynos_dsi_disable_irq(struct exynos_dsi *dsi)
+{
+	if (gpio_is_valid(dsi->te_gpio))
+		disable_irq(gpio_to_irq(dsi->te_gpio));
+
+	disable_irq(dsi->irq);
+}
+
+static int exynos_dsi_init(struct exynos_dsi *dsi)
+{
+	exynos_dsi_reset(dsi);
+	exynos_dsi_enable_irq(dsi);
+	exynos_dsi_enable_clock(dsi);
+	exynos_dsi_wait_for_reset(dsi);
+	exynos_dsi_set_phy_ctrl(dsi);
+	exynos_dsi_init_link(dsi);
+
+	return 0;
+}
+
+static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi)
+{
+	int ret;
+	int te_gpio_irq;
+
+	dsi->te_gpio = of_get_named_gpio(dsi->panel_node, "te-gpios", 0);
+	if (!gpio_is_valid(dsi->te_gpio)) {
+		dev_err(dsi->dev, "no te-gpios specified\n");
+		ret = dsi->te_gpio;
+		goto out;
+	}
+
+	ret = gpio_request_one(dsi->te_gpio, GPIOF_IN, "te_gpio");
+	if (ret) {
+		dev_err(dsi->dev, "gpio request failed with %d\n", ret);
+		goto out;
+	}
+
+	te_gpio_irq = gpio_to_irq(dsi->te_gpio);
+
+	irq_set_status_flags(te_gpio_irq, IRQ_NOAUTOEN);
+	ret = request_threaded_irq(te_gpio_irq, exynos_dsi_te_irq_handler, NULL,
+					IRQF_TRIGGER_RISING, "TE", dsi);
+	if (ret) {
+		dev_err(dsi->dev, "request interrupt failed with %d\n", ret);
+		gpio_free(dsi->te_gpio);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static void exynos_dsi_unregister_te_irq(struct exynos_dsi *dsi)
+{
+	if (gpio_is_valid(dsi->te_gpio)) {
+		free_irq(gpio_to_irq(dsi->te_gpio), dsi);
+		gpio_free(dsi->te_gpio);
+		dsi->te_gpio = -ENOENT;
+	}
+}
+
+static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
+				  struct mipi_dsi_device *device)
+{
+	struct exynos_dsi *dsi = host_to_dsi(host);
+
+	dsi->lanes = device->lanes;
+	dsi->format = device->format;
+	dsi->mode_flags = device->mode_flags;
+	dsi->panel_node = device->dev.of_node;
+
+	/*
+	 * This is a temporary solution and should be made by more generic way.
+	 *
+	 * If attached panel device is for command mode one, dsi should register
+	 * TE interrupt handler.
+	 */
+	if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO)) {
+		int ret = exynos_dsi_register_te_irq(dsi);
+
+		if (ret)
+			return ret;
+	}
+
+	if (dsi->connector.dev)
+		drm_helper_hpd_irq_event(dsi->connector.dev);
+
+	return 0;
+}
+
+static int exynos_dsi_host_detach(struct mipi_dsi_host *host,
+				  struct mipi_dsi_device *device)
+{
+	struct exynos_dsi *dsi = host_to_dsi(host);
+
+	exynos_dsi_unregister_te_irq(dsi);
+
+	dsi->panel_node = NULL;
+
+	if (dsi->connector.dev)
+		drm_helper_hpd_irq_event(dsi->connector.dev);
+
+	return 0;
+}
+
+/* distinguish between short and long DSI packet types */
+static bool exynos_dsi_is_short_dsi_type(u8 type)
+{
+	return (type & 0x0f) <= 8;
+}
+
+static ssize_t exynos_dsi_host_transfer(struct mipi_dsi_host *host,
+				        const struct mipi_dsi_msg *msg)
+{
+	struct exynos_dsi *dsi = host_to_dsi(host);
+	struct exynos_dsi_transfer xfer;
+	int ret;
+
+	if (!(dsi->state & DSIM_STATE_INITIALIZED)) {
+		ret = exynos_dsi_init(dsi);
+		if (ret)
+			return ret;
+		dsi->state |= DSIM_STATE_INITIALIZED;
+	}
+
+	if (msg->tx_len == 0)
+		return -EINVAL;
+
+	xfer.data_id = msg->type | (msg->channel << 6);
+
+	if (exynos_dsi_is_short_dsi_type(msg->type)) {
+		const char *tx_buf = msg->tx_buf;
+
+		if (msg->tx_len > 2)
+			return -EINVAL;
+		xfer.tx_len = 0;
+		xfer.data[0] = tx_buf[0];
+		xfer.data[1] = (msg->tx_len == 2) ? tx_buf[1] : 0;
+	} else {
+		xfer.tx_len = msg->tx_len;
+		xfer.data[0] = msg->tx_len & 0xff;
+		xfer.data[1] = msg->tx_len >> 8;
+		xfer.tx_payload = msg->tx_buf;
+	}
+
+	xfer.rx_len = msg->rx_len;
+	xfer.rx_payload = msg->rx_buf;
+	xfer.flags = msg->flags;
+
+	ret = exynos_dsi_transfer(dsi, &xfer);
+	return (ret < 0) ? ret : xfer.rx_done;
+}
+
+static const struct mipi_dsi_host_ops exynos_dsi_ops = {
+	.attach = exynos_dsi_host_attach,
+	.detach = exynos_dsi_host_detach,
+	.transfer = exynos_dsi_host_transfer,
+};
+
+static int exynos_dsi_poweron(struct exynos_dsi *dsi)
+{
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(dsi->supplies), dsi->supplies);
+	if (ret < 0) {
+		dev_err(dsi->dev, "cannot enable regulators %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(dsi->bus_clk);
+	if (ret < 0) {
+		dev_err(dsi->dev, "cannot enable bus clock %d\n", ret);
+		goto err_bus_clk;
+	}
+
+	ret = clk_prepare_enable(dsi->pll_clk);
+	if (ret < 0) {
+		dev_err(dsi->dev, "cannot enable pll clock %d\n", ret);
+		goto err_pll_clk;
+	}
+
+	ret = phy_power_on(dsi->phy);
+	if (ret < 0) {
+		dev_err(dsi->dev, "cannot enable phy %d\n", ret);
+		goto err_phy;
+	}
+
+	return 0;
+
+err_phy:
+	clk_disable_unprepare(dsi->pll_clk);
+err_pll_clk:
+	clk_disable_unprepare(dsi->bus_clk);
+err_bus_clk:
+	regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies);
+
+	return ret;
+}
+
+static void exynos_dsi_poweroff(struct exynos_dsi *dsi)
+{
+	int ret;
+
+	usleep_range(10000, 20000);
+
+	if (dsi->state & DSIM_STATE_INITIALIZED) {
+		dsi->state &= ~DSIM_STATE_INITIALIZED;
+
+		exynos_dsi_disable_clock(dsi);
+
+		exynos_dsi_disable_irq(dsi);
+	}
+
+	dsi->state &= ~DSIM_STATE_CMD_LPM;
+
+	phy_power_off(dsi->phy);
+
+	clk_disable_unprepare(dsi->pll_clk);
+	clk_disable_unprepare(dsi->bus_clk);
+
+	ret = regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies);
+	if (ret < 0)
+		dev_err(dsi->dev, "cannot disable regulators %d\n", ret);
+}
+
+static int exynos_dsi_enable(struct exynos_dsi *dsi)
+{
+	int ret;
+
+	if (dsi->state & DSIM_STATE_ENABLED)
+		return 0;
+
+	ret = exynos_dsi_poweron(dsi);
+	if (ret < 0)
+		return ret;
+
+	ret = drm_panel_prepare(dsi->panel);
+	if (ret < 0) {
+		exynos_dsi_poweroff(dsi);
+		return ret;
+	}
+
+	exynos_dsi_set_display_mode(dsi);
+	exynos_dsi_set_display_enable(dsi, true);
+
+	dsi->state |= DSIM_STATE_ENABLED;
+
+	ret = drm_panel_enable(dsi->panel);
+	if (ret < 0) {
+		dsi->state &= ~DSIM_STATE_ENABLED;
+		exynos_dsi_set_display_enable(dsi, false);
+		drm_panel_unprepare(dsi->panel);
+		exynos_dsi_poweroff(dsi);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void exynos_dsi_disable(struct exynos_dsi *dsi)
+{
+	if (!(dsi->state & DSIM_STATE_ENABLED))
+		return;
+
+	drm_panel_disable(dsi->panel);
+	exynos_dsi_set_display_enable(dsi, false);
+	drm_panel_unprepare(dsi->panel);
+	exynos_dsi_poweroff(dsi);
+
+	dsi->state &= ~DSIM_STATE_ENABLED;
+}
+
+static void exynos_dsi_dpms(struct exynos_drm_display *display, int mode)
+{
+	struct exynos_dsi *dsi = display_to_dsi(display);
+
+	if (dsi->panel) {
+		switch (mode) {
+		case DRM_MODE_DPMS_ON:
+			exynos_dsi_enable(dsi);
+			break;
+		case DRM_MODE_DPMS_STANDBY:
+		case DRM_MODE_DPMS_SUSPEND:
+		case DRM_MODE_DPMS_OFF:
+			exynos_dsi_disable(dsi);
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+static enum drm_connector_status
+exynos_dsi_detect(struct drm_connector *connector, bool force)
+{
+	struct exynos_dsi *dsi = connector_to_dsi(connector);
+
+	if (!dsi->panel) {
+		dsi->panel = of_drm_find_panel(dsi->panel_node);
+		if (dsi->panel)
+			drm_panel_attach(dsi->panel, &dsi->connector);
+	} else if (!dsi->panel_node) {
+		struct exynos_drm_display *display;
+
+		display = platform_get_drvdata(to_platform_device(dsi->dev));
+		exynos_dsi_dpms(display, DRM_MODE_DPMS_OFF);
+		drm_panel_detach(dsi->panel);
+		dsi->panel = NULL;
+	}
+
+	if (dsi->panel)
+		return connector_status_connected;
+
+	return connector_status_disconnected;
+}
+
+static void exynos_dsi_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+	connector->dev = NULL;
+}
+
+static struct drm_connector_funcs exynos_dsi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = exynos_dsi_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = exynos_dsi_connector_destroy,
+};
+
+static int exynos_dsi_get_modes(struct drm_connector *connector)
+{
+	struct exynos_dsi *dsi = connector_to_dsi(connector);
+
+	if (dsi->panel)
+		return dsi->panel->funcs->get_modes(dsi->panel);
+
+	return 0;
+}
+
+static struct drm_encoder *
+exynos_dsi_best_encoder(struct drm_connector *connector)
+{
+	struct exynos_dsi *dsi = connector_to_dsi(connector);
+
+	return dsi->display.encoder;
+}
+
+static struct drm_connector_helper_funcs exynos_dsi_connector_helper_funcs = {
+	.get_modes = exynos_dsi_get_modes,
+	.best_encoder = exynos_dsi_best_encoder,
+};
+
+static int exynos_dsi_create_connector(struct exynos_drm_display *display,
+				       struct drm_encoder *encoder)
+{
+	struct exynos_dsi *dsi = display_to_dsi(display);
+	struct drm_connector *connector = &dsi->connector;
+	int ret;
+
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	ret = drm_connector_init(encoder->dev, connector,
+				 &exynos_dsi_connector_funcs,
+				 DRM_MODE_CONNECTOR_DSI);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	drm_connector_helper_add(connector, &exynos_dsi_connector_helper_funcs);
+	drm_connector_register(connector);
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	return 0;
+}
+
+static void exynos_dsi_mode_set(struct exynos_drm_display *display,
+			 struct drm_display_mode *mode)
+{
+	struct exynos_dsi *dsi = display_to_dsi(display);
+	struct videomode *vm = &dsi->vm;
+
+	vm->hactive = mode->hdisplay;
+	vm->vactive = mode->vdisplay;
+	vm->vfront_porch = mode->vsync_start - mode->vdisplay;
+	vm->vback_porch = mode->vtotal - mode->vsync_end;
+	vm->vsync_len = mode->vsync_end - mode->vsync_start;
+	vm->hfront_porch = mode->hsync_start - mode->hdisplay;
+	vm->hback_porch = mode->htotal - mode->hsync_end;
+	vm->hsync_len = mode->hsync_end - mode->hsync_start;
+}
+
+static struct exynos_drm_display_ops exynos_dsi_display_ops = {
+	.create_connector = exynos_dsi_create_connector,
+	.mode_set = exynos_dsi_mode_set,
+	.dpms = exynos_dsi_dpms
+};
+
+MODULE_DEVICE_TABLE(of, exynos_dsi_of_match);
+
+/* of_* functions will be removed after merge of of_graph patches */
+static struct device_node *
+of_get_child_by_name_reg(struct device_node *parent, const char *name, u32 reg)
+{
+	struct device_node *np;
+
+	for_each_child_of_node(parent, np) {
+		u32 r;
+
+		if (!np->name || of_node_cmp(np->name, name))
+			continue;
+
+		if (of_property_read_u32(np, "reg", &r) < 0)
+			r = 0;
+
+		if (reg == r)
+			break;
+	}
+
+	return np;
+}
+
+static struct device_node *of_graph_get_port_by_reg(struct device_node *parent,
+						    u32 reg)
+{
+	struct device_node *ports, *port;
+
+	ports = of_get_child_by_name(parent, "ports");
+	if (ports)
+		parent = ports;
+
+	port = of_get_child_by_name_reg(parent, "port", reg);
+
+	of_node_put(ports);
+
+	return port;
+}
+
+static struct device_node *
+of_graph_get_endpoint_by_reg(struct device_node *port, u32 reg)
+{
+	return of_get_child_by_name_reg(port, "endpoint", reg);
+}
+
+static int exynos_dsi_of_read_u32(const struct device_node *np,
+				  const char *propname, u32 *out_value)
+{
+	int ret = of_property_read_u32(np, propname, out_value);
+
+	if (ret < 0)
+		pr_err("%s: failed to get '%s' property\n", np->full_name,
+		       propname);
+
+	return ret;
+}
+
+enum {
+	DSI_PORT_IN,
+	DSI_PORT_OUT
+};
+
+static int exynos_dsi_parse_dt(struct exynos_dsi *dsi)
+{
+	struct device *dev = dsi->dev;
+	struct device_node *node = dev->of_node;
+	struct device_node *port, *ep;
+	int ret;
+
+	ret = exynos_dsi_of_read_u32(node, "samsung,pll-clock-frequency",
+				     &dsi->pll_clk_rate);
+	if (ret < 0)
+		return ret;
+
+	port = of_graph_get_port_by_reg(node, DSI_PORT_OUT);
+	if (!port) {
+		dev_err(dev, "no output port specified\n");
+		return -EINVAL;
+	}
+
+	ep = of_graph_get_endpoint_by_reg(port, 0);
+	of_node_put(port);
+	if (!ep) {
+		dev_err(dev, "no endpoint specified in output port\n");
+		return -EINVAL;
+	}
+
+	ret = exynos_dsi_of_read_u32(ep, "samsung,burst-clock-frequency",
+				     &dsi->burst_clk_rate);
+	if (ret < 0)
+		goto end;
+
+	ret = exynos_dsi_of_read_u32(ep, "samsung,esc-clock-frequency",
+				     &dsi->esc_clk_rate);
+
+end:
+	of_node_put(ep);
+
+	return ret;
+}
+
+static int exynos_dsi_bind(struct device *dev, struct device *master,
+				void *data)
+{
+	struct exynos_drm_display *display = dev_get_drvdata(dev);
+	struct exynos_dsi *dsi = display_to_dsi(display);
+	struct drm_device *drm_dev = data;
+	int ret;
+
+	ret = exynos_drm_create_enc_conn(drm_dev, display);
+	if (ret) {
+		DRM_ERROR("Encoder create [%d] failed with %d\n",
+			  display->type, ret);
+		return ret;
+	}
+
+	return mipi_dsi_host_register(&dsi->dsi_host);
+}
+
+static void exynos_dsi_unbind(struct device *dev, struct device *master,
+				void *data)
+{
+	struct exynos_drm_display *display = dev_get_drvdata(dev);
+	struct exynos_dsi *dsi = display_to_dsi(display);
+
+	exynos_dsi_dpms(display, DRM_MODE_DPMS_OFF);
+
+	mipi_dsi_host_unregister(&dsi->dsi_host);
+}
+
+static const struct component_ops exynos_dsi_component_ops = {
+	.bind	= exynos_dsi_bind,
+	.unbind	= exynos_dsi_unbind,
+};
+
+static int exynos_dsi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct exynos_dsi *dsi;
+	int ret;
+
+	dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
+	if (!dsi)
+		return -ENOMEM;
+
+	dsi->display.type = EXYNOS_DISPLAY_TYPE_LCD;
+	dsi->display.ops = &exynos_dsi_display_ops;
+
+	ret = exynos_drm_component_add(dev, EXYNOS_DEVICE_TYPE_CONNECTOR,
+				       dsi->display.type);
+	if (ret)
+		return ret;
+
+	/* To be checked as invalid one */
+	dsi->te_gpio = -ENOENT;
+
+	init_completion(&dsi->completed);
+	spin_lock_init(&dsi->transfer_lock);
+	INIT_LIST_HEAD(&dsi->transfer_list);
+
+	dsi->dsi_host.ops = &exynos_dsi_ops;
+	dsi->dsi_host.dev = dev;
+
+	dsi->dev = dev;
+	dsi->driver_data = exynos_dsi_get_driver_data(pdev);
+
+	ret = exynos_dsi_parse_dt(dsi);
+	if (ret)
+		goto err_del_component;
+
+	dsi->supplies[0].supply = "vddcore";
+	dsi->supplies[1].supply = "vddio";
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(dsi->supplies),
+				      dsi->supplies);
+	if (ret) {
+		dev_info(dev, "failed to get regulators: %d\n", ret);
+		return -EPROBE_DEFER;
+	}
+
+	dsi->pll_clk = devm_clk_get(dev, "pll_clk");
+	if (IS_ERR(dsi->pll_clk)) {
+		dev_info(dev, "failed to get dsi pll input clock\n");
+		ret = PTR_ERR(dsi->pll_clk);
+		goto err_del_component;
+	}
+
+	dsi->bus_clk = devm_clk_get(dev, "bus_clk");
+	if (IS_ERR(dsi->bus_clk)) {
+		dev_info(dev, "failed to get dsi bus clock\n");
+		ret = PTR_ERR(dsi->bus_clk);
+		goto err_del_component;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dsi->reg_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(dsi->reg_base)) {
+		dev_err(dev, "failed to remap io region\n");
+		ret = PTR_ERR(dsi->reg_base);
+		goto err_del_component;
+	}
+
+	dsi->phy = devm_phy_get(dev, "dsim");
+	if (IS_ERR(dsi->phy)) {
+		dev_info(dev, "failed to get dsim phy\n");
+		ret = PTR_ERR(dsi->phy);
+		goto err_del_component;
+	}
+
+	dsi->irq = platform_get_irq(pdev, 0);
+	if (dsi->irq < 0) {
+		dev_err(dev, "failed to request dsi irq resource\n");
+		ret = dsi->irq;
+		goto err_del_component;
+	}
+
+	irq_set_status_flags(dsi->irq, IRQ_NOAUTOEN);
+	ret = devm_request_threaded_irq(dev, dsi->irq, NULL,
+					exynos_dsi_irq, IRQF_ONESHOT,
+					dev_name(dev), dsi);
+	if (ret) {
+		dev_err(dev, "failed to request dsi irq\n");
+		goto err_del_component;
+	}
+
+	platform_set_drvdata(pdev, &dsi->display);
+
+	ret = component_add(dev, &exynos_dsi_component_ops);
+	if (ret)
+		goto err_del_component;
+
+	return ret;
+
+err_del_component:
+	exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+	return ret;
+}
+
+static int exynos_dsi_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &exynos_dsi_component_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return 0;
+}
+
+struct platform_driver dsi_driver = {
+	.probe = exynos_dsi_probe,
+	.remove = exynos_dsi_remove,
+	.driver = {
+		   .name = "exynos-dsi",
+		   .owner = THIS_MODULE,
+		   .of_match_table = exynos_dsi_of_match,
+	},
+};
+
+MODULE_AUTHOR("Tomasz Figa <t.figa@samsung.com>");
+MODULE_AUTHOR("Andrzej Hajda <a.hajda@samsung.com>");
+MODULE_DESCRIPTION("Samsung SoC MIPI DSI Master");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.c
new file mode 100644
index 000000000..57de0bdc5
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -0,0 +1,197 @@
+/* exynos_drm_encoder.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_encoder.h"
+
+#define to_exynos_encoder(x)	container_of(x, struct exynos_drm_encoder,\
+				drm_encoder)
+
+/*
+ * exynos specific encoder structure.
+ *
+ * @drm_encoder: encoder object.
+ * @display: the display structure that maps to this encoder
+ */
+struct exynos_drm_encoder {
+	struct drm_encoder		drm_encoder;
+	struct exynos_drm_display	*display;
+};
+
+static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_display *display = exynos_encoder->display;
+
+	DRM_DEBUG_KMS("encoder dpms: %d\n", mode);
+
+	if (display->ops->dpms)
+		display->ops->dpms(display, mode);
+}
+
+static bool
+exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+			       const struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_display *display = exynos_encoder->display;
+	struct drm_connector *connector;
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		if (connector->encoder != encoder)
+			continue;
+
+		if (display->ops->mode_fixup)
+			display->ops->mode_fixup(display, connector, mode,
+					adjusted_mode);
+	}
+
+	return true;
+}
+
+static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder,
+					 struct drm_display_mode *mode,
+					 struct drm_display_mode *adjusted_mode)
+{
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_display *display = exynos_encoder->display;
+
+	if (display->ops->mode_set)
+		display->ops->mode_set(display, adjusted_mode);
+}
+
+static void exynos_drm_encoder_prepare(struct drm_encoder *encoder)
+{
+	/* drm framework doesn't check NULL. */
+}
+
+static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
+{
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_display *display = exynos_encoder->display;
+
+	if (display->ops->dpms)
+		display->ops->dpms(display, DRM_MODE_DPMS_ON);
+
+	if (display->ops->commit)
+		display->ops->commit(display);
+}
+
+static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
+{
+	struct drm_plane *plane;
+	struct drm_device *dev = encoder->dev;
+
+	exynos_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
+	/* all planes connected to this encoder should be also disabled. */
+	drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
+		if (plane->crtc && (plane->crtc == encoder->crtc))
+			plane->funcs->disable_plane(plane);
+	}
+}
+
+static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = {
+	.dpms		= exynos_drm_encoder_dpms,
+	.mode_fixup	= exynos_drm_encoder_mode_fixup,
+	.mode_set	= exynos_drm_encoder_mode_set,
+	.prepare	= exynos_drm_encoder_prepare,
+	.commit		= exynos_drm_encoder_commit,
+	.disable	= exynos_drm_encoder_disable,
+};
+
+static void exynos_drm_encoder_destroy(struct drm_encoder *encoder)
+{
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+
+	drm_encoder_cleanup(encoder);
+	kfree(exynos_encoder);
+}
+
+static struct drm_encoder_funcs exynos_encoder_funcs = {
+	.destroy = exynos_drm_encoder_destroy,
+};
+
+static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
+{
+	struct drm_encoder *clone;
+	struct drm_device *dev = encoder->dev;
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_display *display = exynos_encoder->display;
+	unsigned int clone_mask = 0;
+	int cnt = 0;
+
+	list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
+		switch (display->type) {
+		case EXYNOS_DISPLAY_TYPE_LCD:
+		case EXYNOS_DISPLAY_TYPE_HDMI:
+		case EXYNOS_DISPLAY_TYPE_VIDI:
+			clone_mask |= (1 << (cnt++));
+			break;
+		default:
+			continue;
+		}
+	}
+
+	return clone_mask;
+}
+
+void exynos_drm_encoder_setup(struct drm_device *dev)
+{
+	struct drm_encoder *encoder;
+
+	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+		encoder->possible_clones = exynos_drm_encoder_clones(encoder);
+}
+
+struct drm_encoder *
+exynos_drm_encoder_create(struct drm_device *dev,
+			   struct exynos_drm_display *display,
+			   unsigned long possible_crtcs)
+{
+	struct drm_encoder *encoder;
+	struct exynos_drm_encoder *exynos_encoder;
+
+	if (!possible_crtcs)
+		return NULL;
+
+	exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL);
+	if (!exynos_encoder)
+		return NULL;
+
+	exynos_encoder->display = display;
+	encoder = &exynos_encoder->drm_encoder;
+	encoder->possible_crtcs = possible_crtcs;
+
+	DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+	drm_encoder_init(dev, encoder, &exynos_encoder_funcs,
+			DRM_MODE_ENCODER_TMDS);
+
+	drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs);
+
+	DRM_DEBUG_KMS("encoder has been created\n");
+
+	return encoder;
+}
+
+struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder)
+{
+	return to_exynos_encoder(encoder)->display;
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.h
new file mode 100644
index 000000000..26305d8dd
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_ENCODER_H_
+#define _EXYNOS_DRM_ENCODER_H_
+
+void exynos_drm_encoder_setup(struct drm_device *dev);
+struct drm_encoder *exynos_drm_encoder_create(struct drm_device *dev,
+			struct exynos_drm_display *mgr,
+			unsigned long possible_crtcs);
+struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.c
new file mode 100644
index 000000000..142eb4e3f
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -0,0 +1,287 @@
+/* exynos_drm_fb.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <uapi/drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_fb.h"
+#include "exynos_drm_fbdev.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_iommu.h"
+#include "exynos_drm_crtc.h"
+
+#define to_exynos_fb(x)	container_of(x, struct exynos_drm_fb, fb)
+
+/*
+ * exynos specific framebuffer structure.
+ *
+ * @fb: drm framebuffer obejct.
+ * @buf_cnt: a buffer count to drm framebuffer.
+ * @exynos_gem_obj: array of exynos specific gem object containing a gem object.
+ */
+struct exynos_drm_fb {
+	struct drm_framebuffer		fb;
+	unsigned int			buf_cnt;
+	struct exynos_drm_gem_obj	*exynos_gem_obj[MAX_FB_BUFFER];
+};
+
+static int check_fb_gem_memory_type(struct drm_device *drm_dev,
+				struct exynos_drm_gem_obj *exynos_gem_obj)
+{
+	unsigned int flags;
+
+	/*
+	 * if exynos drm driver supports iommu then framebuffer can use
+	 * all the buffer types.
+	 */
+	if (is_drm_iommu_supported(drm_dev))
+		return 0;
+
+	flags = exynos_gem_obj->flags;
+
+	/*
+	 * without iommu support, not support physically non-continuous memory
+	 * for framebuffer.
+	 */
+	if (IS_NONCONTIG_BUFFER(flags)) {
+		DRM_ERROR("cannot use this gem memory type for fb.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
+{
+	struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
+	unsigned int i;
+
+	/* make sure that overlay data are updated before relesing fb. */
+	exynos_drm_crtc_complete_scanout(fb);
+
+	drm_framebuffer_cleanup(fb);
+
+	for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem_obj); i++) {
+		struct drm_gem_object *obj;
+
+		if (exynos_fb->exynos_gem_obj[i] == NULL)
+			continue;
+
+		obj = &exynos_fb->exynos_gem_obj[i]->base;
+		drm_gem_object_unreference_unlocked(obj);
+	}
+
+	kfree(exynos_fb);
+	exynos_fb = NULL;
+}
+
+static int exynos_drm_fb_create_handle(struct drm_framebuffer *fb,
+					struct drm_file *file_priv,
+					unsigned int *handle)
+{
+	struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
+
+	/* This fb should have only one gem object. */
+	if (WARN_ON(exynos_fb->buf_cnt != 1))
+		return -EINVAL;
+
+	return drm_gem_handle_create(file_priv,
+			&exynos_fb->exynos_gem_obj[0]->base, handle);
+}
+
+static int exynos_drm_fb_dirty(struct drm_framebuffer *fb,
+				struct drm_file *file_priv, unsigned flags,
+				unsigned color, struct drm_clip_rect *clips,
+				unsigned num_clips)
+{
+	/* TODO */
+
+	return 0;
+}
+
+static struct drm_framebuffer_funcs exynos_drm_fb_funcs = {
+	.destroy	= exynos_drm_fb_destroy,
+	.create_handle	= exynos_drm_fb_create_handle,
+	.dirty		= exynos_drm_fb_dirty,
+};
+
+void exynos_drm_fb_set_buf_cnt(struct drm_framebuffer *fb,
+						unsigned int cnt)
+{
+	struct exynos_drm_fb *exynos_fb;
+
+	exynos_fb = to_exynos_fb(fb);
+
+	exynos_fb->buf_cnt = cnt;
+}
+
+unsigned int exynos_drm_fb_get_buf_cnt(struct drm_framebuffer *fb)
+{
+	struct exynos_drm_fb *exynos_fb;
+
+	exynos_fb = to_exynos_fb(fb);
+
+	return exynos_fb->buf_cnt;
+}
+
+struct drm_framebuffer *
+exynos_drm_framebuffer_init(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *mode_cmd,
+			    struct drm_gem_object *obj)
+{
+	struct exynos_drm_fb *exynos_fb;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	int ret;
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	ret = check_fb_gem_memory_type(dev, exynos_gem_obj);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL);
+	if (!exynos_fb)
+		return ERR_PTR(-ENOMEM);
+
+	drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
+	exynos_fb->exynos_gem_obj[0] = exynos_gem_obj;
+
+	ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs);
+	if (ret) {
+		kfree(exynos_fb);
+		DRM_ERROR("failed to initialize framebuffer\n");
+		return ERR_PTR(ret);
+	}
+
+	return &exynos_fb->fb;
+}
+
+static struct drm_framebuffer *
+exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+		      struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	struct drm_gem_object *obj;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_fb *exynos_fb;
+	int i, ret;
+
+	exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL);
+	if (!exynos_fb)
+		return ERR_PTR(-ENOMEM);
+
+	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object\n");
+		ret = -ENOENT;
+		goto err_free;
+	}
+
+	drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
+	exynos_fb->exynos_gem_obj[0] = to_exynos_gem_obj(obj);
+	exynos_fb->buf_cnt = drm_format_num_planes(mode_cmd->pixel_format);
+
+	DRM_DEBUG_KMS("buf_cnt = %d\n", exynos_fb->buf_cnt);
+
+	for (i = 1; i < exynos_fb->buf_cnt; i++) {
+		obj = drm_gem_object_lookup(dev, file_priv,
+				mode_cmd->handles[i]);
+		if (!obj) {
+			DRM_ERROR("failed to lookup gem object\n");
+			ret = -ENOENT;
+			exynos_fb->buf_cnt = i;
+			goto err_unreference;
+		}
+
+		exynos_gem_obj = to_exynos_gem_obj(obj);
+		exynos_fb->exynos_gem_obj[i] = exynos_gem_obj;
+
+		ret = check_fb_gem_memory_type(dev, exynos_gem_obj);
+		if (ret < 0)
+			goto err_unreference;
+	}
+
+	ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs);
+	if (ret) {
+		DRM_ERROR("failed to init framebuffer.\n");
+		goto err_unreference;
+	}
+
+	return &exynos_fb->fb;
+
+err_unreference:
+	for (i = 0; i < exynos_fb->buf_cnt; i++) {
+		struct drm_gem_object *obj;
+
+		obj = &exynos_fb->exynos_gem_obj[i]->base;
+		if (obj)
+			drm_gem_object_unreference_unlocked(obj);
+	}
+err_free:
+	kfree(exynos_fb);
+	return ERR_PTR(ret);
+}
+
+struct exynos_drm_gem_buf *exynos_drm_fb_buffer(struct drm_framebuffer *fb,
+						int index)
+{
+	struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
+	struct exynos_drm_gem_buf *buffer;
+
+	if (index >= MAX_FB_BUFFER)
+		return NULL;
+
+	buffer = exynos_fb->exynos_gem_obj[index]->buffer;
+	if (!buffer)
+		return NULL;
+
+	DRM_DEBUG_KMS("dma_addr = 0x%lx\n", (unsigned long)buffer->dma_addr);
+
+	return buffer;
+}
+
+static void exynos_drm_output_poll_changed(struct drm_device *dev)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+	struct drm_fb_helper *fb_helper = private->fb_helper;
+
+	if (fb_helper)
+		drm_fb_helper_hotplug_event(fb_helper);
+	else
+		exynos_drm_fbdev_init(dev);
+}
+
+static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
+	.fb_create = exynos_user_fb_create,
+	.output_poll_changed = exynos_drm_output_poll_changed,
+};
+
+void exynos_drm_mode_config_init(struct drm_device *dev)
+{
+	dev->mode_config.min_width = 0;
+	dev->mode_config.min_height = 0;
+
+	/*
+	 * set max width and height as default value(4096x4096).
+	 * this value would be used to check framebuffer size limitation
+	 * at drm_mode_addfb().
+	 */
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
+
+	dev->mode_config.funcs = &exynos_drm_mode_config_funcs;
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.h
new file mode 100644
index 000000000..517471b37
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fb.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_FB_H_
+#define _EXYNOS_DRM_FB_H
+
+struct drm_framebuffer *
+exynos_drm_framebuffer_init(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *mode_cmd,
+			    struct drm_gem_object *obj);
+
+/* get memory information of a drm framebuffer */
+struct exynos_drm_gem_buf *exynos_drm_fb_buffer(struct drm_framebuffer *fb,
+						 int index);
+
+void exynos_drm_mode_config_init(struct drm_device *dev);
+
+/* set a buffer count to drm framebuffer. */
+void exynos_drm_fb_set_buf_cnt(struct drm_framebuffer *fb,
+						unsigned int cnt);
+
+/* get a buffer count to drm framebuffer. */
+unsigned int exynos_drm_fb_get_buf_cnt(struct drm_framebuffer *fb);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
new file mode 100644
index 000000000..e71e331f0
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -0,0 +1,360 @@
+/* exynos_drm_fbdev.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_fb.h"
+#include "exynos_drm_fbdev.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_iommu.h"
+
+#define MAX_CONNECTOR		4
+#define PREFERRED_BPP		32
+
+#define to_exynos_fbdev(x)	container_of(x, struct exynos_drm_fbdev,\
+				drm_fb_helper)
+
+struct exynos_drm_fbdev {
+	struct drm_fb_helper		drm_fb_helper;
+	struct exynos_drm_gem_obj	*exynos_gem_obj;
+};
+
+static int exynos_drm_fb_mmap(struct fb_info *info,
+			struct vm_area_struct *vma)
+{
+	struct drm_fb_helper *helper = info->par;
+	struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(helper);
+	struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj;
+	struct exynos_drm_gem_buf *buffer = exynos_gem_obj->buffer;
+	unsigned long vm_size;
+	int ret;
+
+	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
+
+	vm_size = vma->vm_end - vma->vm_start;
+
+	if (vm_size > buffer->size)
+		return -EINVAL;
+
+	ret = dma_mmap_attrs(helper->dev->dev, vma, buffer->pages,
+		buffer->dma_addr, buffer->size, &buffer->dma_attrs);
+	if (ret < 0) {
+		DRM_ERROR("failed to mmap.\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct fb_ops exynos_drm_fb_ops = {
+	.owner		= THIS_MODULE,
+	.fb_mmap        = exynos_drm_fb_mmap,
+	.fb_fillrect	= cfb_fillrect,
+	.fb_copyarea	= cfb_copyarea,
+	.fb_imageblit	= cfb_imageblit,
+	.fb_check_var	= drm_fb_helper_check_var,
+	.fb_set_par	= drm_fb_helper_set_par,
+	.fb_blank	= drm_fb_helper_blank,
+	.fb_pan_display	= drm_fb_helper_pan_display,
+	.fb_setcmap	= drm_fb_helper_setcmap,
+};
+
+static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
+				     struct drm_fb_helper_surface_size *sizes,
+				     struct drm_framebuffer *fb)
+{
+	struct fb_info *fbi = helper->fbdev;
+	struct exynos_drm_gem_buf *buffer;
+	unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3);
+	unsigned int nr_pages;
+	unsigned long offset;
+
+	drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
+	drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height);
+
+	/* RGB formats use only one buffer */
+	buffer = exynos_drm_fb_buffer(fb, 0);
+	if (!buffer) {
+		DRM_DEBUG_KMS("buffer is null.\n");
+		return -EFAULT;
+	}
+
+	nr_pages = buffer->size >> PAGE_SHIFT;
+
+	buffer->kvaddr = (void __iomem *) vmap(buffer->pages,
+			nr_pages, VM_MAP,
+			pgprot_writecombine(PAGE_KERNEL));
+	if (!buffer->kvaddr) {
+		DRM_ERROR("failed to map pages to kernel space.\n");
+		return -EIO;
+	}
+
+	/* buffer count to framebuffer always is 1 at booting time. */
+	exynos_drm_fb_set_buf_cnt(fb, 1);
+
+	offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3);
+	offset += fbi->var.yoffset * fb->pitches[0];
+
+	fbi->screen_base = buffer->kvaddr + offset;
+	fbi->screen_size = size;
+	fbi->fix.smem_len = size;
+
+	return 0;
+}
+
+static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
+				    struct drm_fb_helper_surface_size *sizes)
+{
+	struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper);
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_device *dev = helper->dev;
+	struct fb_info *fbi;
+	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+	struct platform_device *pdev = dev->platformdev;
+	unsigned long size;
+	int ret;
+
+	DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n",
+			sizes->surface_width, sizes->surface_height,
+			sizes->surface_bpp);
+
+	mode_cmd.width = sizes->surface_width;
+	mode_cmd.height = sizes->surface_height;
+	mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
+
+	mutex_lock(&dev->struct_mutex);
+
+	fbi = framebuffer_alloc(0, &pdev->dev);
+	if (!fbi) {
+		DRM_ERROR("failed to allocate fb info.\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+
+	exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG, size);
+	/*
+	 * If physically contiguous memory allocation fails and if IOMMU is
+	 * supported then try to get buffer from non physically contiguous
+	 * memory area.
+	 */
+	if (IS_ERR(exynos_gem_obj) && is_drm_iommu_supported(dev)) {
+		dev_warn(&pdev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n");
+		exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG,
+							size);
+	}
+
+	if (IS_ERR(exynos_gem_obj)) {
+		ret = PTR_ERR(exynos_gem_obj);
+		goto err_release_framebuffer;
+	}
+
+	exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
+
+	helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd,
+			&exynos_gem_obj->base);
+	if (IS_ERR(helper->fb)) {
+		DRM_ERROR("failed to create drm framebuffer.\n");
+		ret = PTR_ERR(helper->fb);
+		goto err_destroy_gem;
+	}
+
+	helper->fbdev = fbi;
+
+	fbi->par = helper;
+	fbi->flags = FBINFO_FLAG_DEFAULT;
+	fbi->fbops = &exynos_drm_fb_ops;
+
+	ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
+	if (ret) {
+		DRM_ERROR("failed to allocate cmap.\n");
+		goto err_destroy_framebuffer;
+	}
+
+	ret = exynos_drm_fbdev_update(helper, sizes, helper->fb);
+	if (ret < 0)
+		goto err_dealloc_cmap;
+
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+
+err_dealloc_cmap:
+	fb_dealloc_cmap(&fbi->cmap);
+err_destroy_framebuffer:
+	drm_framebuffer_cleanup(helper->fb);
+err_destroy_gem:
+	exynos_drm_gem_destroy(exynos_gem_obj);
+err_release_framebuffer:
+	framebuffer_release(fbi);
+
+/*
+ * if failed, all resources allocated above would be released by
+ * drm_mode_config_cleanup() when drm_load() had been called prior
+ * to any specific driver such as fimd or hdmi driver.
+ */
+out:
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = {
+	.fb_probe =	exynos_drm_fbdev_create,
+};
+
+static bool exynos_drm_fbdev_is_anything_connected(struct drm_device *dev)
+{
+	struct drm_connector *connector;
+	bool ret = false;
+
+	mutex_lock(&dev->mode_config.mutex);
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		if (connector->status != connector_status_connected)
+			continue;
+
+		ret = true;
+		break;
+	}
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return ret;
+}
+
+int exynos_drm_fbdev_init(struct drm_device *dev)
+{
+	struct exynos_drm_fbdev *fbdev;
+	struct exynos_drm_private *private = dev->dev_private;
+	struct drm_fb_helper *helper;
+	unsigned int num_crtc;
+	int ret;
+
+	if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
+		return 0;
+
+	if (!exynos_drm_fbdev_is_anything_connected(dev))
+		return 0;
+
+	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
+	if (!fbdev)
+		return -ENOMEM;
+
+	private->fb_helper = helper = &fbdev->drm_fb_helper;
+
+	drm_fb_helper_prepare(dev, helper, &exynos_drm_fb_helper_funcs);
+
+	num_crtc = dev->mode_config.num_crtc;
+
+	ret = drm_fb_helper_init(dev, helper, num_crtc, MAX_CONNECTOR);
+	if (ret < 0) {
+		DRM_ERROR("failed to initialize drm fb helper.\n");
+		goto err_init;
+	}
+
+	ret = drm_fb_helper_single_add_all_connectors(helper);
+	if (ret < 0) {
+		DRM_ERROR("failed to register drm_fb_helper_connector.\n");
+		goto err_setup;
+
+	}
+
+	/* disable all the possible outputs/crtcs before entering KMS mode */
+	drm_helper_disable_unused_functions(dev);
+
+	ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP);
+	if (ret < 0) {
+		DRM_ERROR("failed to set up hw configuration.\n");
+		goto err_setup;
+	}
+
+	return 0;
+
+err_setup:
+	drm_fb_helper_fini(helper);
+
+err_init:
+	private->fb_helper = NULL;
+	kfree(fbdev);
+
+	return ret;
+}
+
+static void exynos_drm_fbdev_destroy(struct drm_device *dev,
+				      struct drm_fb_helper *fb_helper)
+{
+	struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(fb_helper);
+	struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj;
+	struct drm_framebuffer *fb;
+
+	if (exynos_gem_obj->buffer->kvaddr)
+		vunmap(exynos_gem_obj->buffer->kvaddr);
+
+	/* release drm framebuffer and real buffer */
+	if (fb_helper->fb && fb_helper->fb->funcs) {
+		fb = fb_helper->fb;
+		if (fb) {
+			drm_framebuffer_unregister_private(fb);
+			drm_framebuffer_remove(fb);
+		}
+	}
+
+	/* release linux framebuffer */
+	if (fb_helper->fbdev) {
+		struct fb_info *info;
+		int ret;
+
+		info = fb_helper->fbdev;
+		ret = unregister_framebuffer(info);
+		if (ret < 0)
+			DRM_DEBUG_KMS("failed unregister_framebuffer()\n");
+
+		if (info->cmap.len)
+			fb_dealloc_cmap(&info->cmap);
+
+		framebuffer_release(info);
+	}
+
+	drm_fb_helper_fini(fb_helper);
+}
+
+void exynos_drm_fbdev_fini(struct drm_device *dev)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_fbdev *fbdev;
+
+	if (!private || !private->fb_helper)
+		return;
+
+	fbdev = to_exynos_fbdev(private->fb_helper);
+
+	exynos_drm_fbdev_destroy(dev, private->fb_helper);
+	kfree(fbdev);
+	private->fb_helper = NULL;
+}
+
+void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+
+	if (!private || !private->fb_helper)
+		return;
+
+	drm_fb_helper_restore_fbdev_mode_unlocked(private->fb_helper);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
new file mode 100644
index 000000000..e16d7f0ae
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_FBDEV_H_
+#define _EXYNOS_DRM_FBDEV_H_
+
+int exynos_drm_fbdev_init(struct drm_device *dev);
+int exynos_drm_fbdev_reinit(struct drm_device *dev);
+void exynos_drm_fbdev_fini(struct drm_device *dev);
+void exynos_drm_fbdev_restore_mode(struct drm_device *dev);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.c
new file mode 100644
index 000000000..842d6b8dc
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -0,0 +1,1852 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/spinlock.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "regs-fimc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_fimc.h"
+
+/*
+ * FIMC stands for Fully Interactive Mobile Camera and
+ * supports image scaler/rotator and input/output DMA operations.
+ * input DMA reads image data from the memory.
+ * output DMA writes image data to memory.
+ * FIMC supports image rotation and image effect functions.
+ *
+ * M2M operation : supports crop/scale/rotation/csc so on.
+ * Memory ----> FIMC H/W ----> Memory.
+ * Writeback operation : supports cloned screen with FIMD.
+ * FIMD ----> FIMC H/W ----> Memory.
+ * Output operation : supports direct display using local path.
+ * Memory ----> FIMC H/W ----> FIMD.
+ */
+
+/*
+ * TODO
+ * 1. check suspend/resume api if needed.
+ * 2. need to check use case platform_device_id.
+ * 3. check src/dst size with, height.
+ * 4. added check_prepare api for right register.
+ * 5. need to add supported list in prop_list.
+ * 6. check prescaler/scaler optimization.
+ */
+
+#define FIMC_MAX_DEVS	4
+#define FIMC_MAX_SRC	2
+#define FIMC_MAX_DST	32
+#define FIMC_SHFACTOR	10
+#define FIMC_BUF_STOP	1
+#define FIMC_BUF_START	2
+#define FIMC_WIDTH_ITU_709	1280
+#define FIMC_REFRESH_MAX	60
+#define FIMC_REFRESH_MIN	12
+#define FIMC_CROP_MAX	8192
+#define FIMC_CROP_MIN	32
+#define FIMC_SCALE_MAX	4224
+#define FIMC_SCALE_MIN	32
+
+#define get_fimc_context(dev)	platform_get_drvdata(to_platform_device(dev))
+#define get_ctx_from_ippdrv(ippdrv)	container_of(ippdrv,\
+					struct fimc_context, ippdrv);
+enum fimc_wb {
+	FIMC_WB_NONE,
+	FIMC_WB_A,
+	FIMC_WB_B,
+};
+
+enum {
+	FIMC_CLK_LCLK,
+	FIMC_CLK_GATE,
+	FIMC_CLK_WB_A,
+	FIMC_CLK_WB_B,
+	FIMC_CLK_MUX,
+	FIMC_CLK_PARENT,
+	FIMC_CLKS_MAX
+};
+
+static const char * const fimc_clock_names[] = {
+	[FIMC_CLK_LCLK]   = "sclk_fimc",
+	[FIMC_CLK_GATE]   = "fimc",
+	[FIMC_CLK_WB_A]   = "pxl_async0",
+	[FIMC_CLK_WB_B]   = "pxl_async1",
+	[FIMC_CLK_MUX]    = "mux",
+	[FIMC_CLK_PARENT] = "parent",
+};
+
+#define FIMC_DEFAULT_LCLK_FREQUENCY 133000000UL
+
+/*
+ * A structure of scaler.
+ *
+ * @range: narrow, wide.
+ * @bypass: unused scaler path.
+ * @up_h: horizontal scale up.
+ * @up_v: vertical scale up.
+ * @hratio: horizontal ratio.
+ * @vratio: vertical ratio.
+ */
+struct fimc_scaler {
+	bool	range;
+	bool bypass;
+	bool up_h;
+	bool up_v;
+	u32 hratio;
+	u32 vratio;
+};
+
+/*
+ * A structure of scaler capability.
+ *
+ * find user manual table 43-1.
+ * @in_hori: scaler input horizontal size.
+ * @bypass: scaler bypass mode.
+ * @dst_h_wo_rot: target horizontal size without output rotation.
+ * @dst_h_rot: target horizontal size with output rotation.
+ * @rl_w_wo_rot: real width without input rotation.
+ * @rl_h_rot: real height without output rotation.
+ */
+struct fimc_capability {
+	/* scaler */
+	u32	in_hori;
+	u32	bypass;
+	/* output rotator */
+	u32	dst_h_wo_rot;
+	u32	dst_h_rot;
+	/* input rotator */
+	u32	rl_w_wo_rot;
+	u32	rl_h_rot;
+};
+
+/*
+ * A structure of fimc context.
+ *
+ * @ippdrv: prepare initialization using ippdrv.
+ * @regs_res: register resources.
+ * @regs: memory mapped io registers.
+ * @lock: locking of operations.
+ * @clocks: fimc clocks.
+ * @clk_frequency: LCLK clock frequency.
+ * @sysreg: handle to SYSREG block regmap.
+ * @sc: scaler infomations.
+ * @pol: porarity of writeback.
+ * @id: fimc id.
+ * @irq: irq number.
+ * @suspended: qos operations.
+ */
+struct fimc_context {
+	struct exynos_drm_ippdrv	ippdrv;
+	struct resource	*regs_res;
+	void __iomem	*regs;
+	spinlock_t	lock;
+	struct clk	*clocks[FIMC_CLKS_MAX];
+	u32		clk_frequency;
+	struct regmap	*sysreg;
+	struct fimc_scaler	sc;
+	struct exynos_drm_ipp_pol	pol;
+	int	id;
+	int	irq;
+	bool	suspended;
+};
+
+static u32 fimc_read(struct fimc_context *ctx, u32 reg)
+{
+	return readl(ctx->regs + reg);
+}
+
+static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg)
+{
+	writel(val, ctx->regs + reg);
+}
+
+static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits)
+{
+	void __iomem *r = ctx->regs + reg;
+
+	writel(readl(r) | bits, r);
+}
+
+static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits)
+{
+	void __iomem *r = ctx->regs + reg;
+
+	writel(readl(r) & ~bits, r);
+}
+
+static void fimc_sw_reset(struct fimc_context *ctx)
+{
+	u32 cfg;
+
+	/* stop dma operation */
+	cfg = fimc_read(ctx, EXYNOS_CISTATUS);
+	if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg))
+		fimc_clear_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
+
+	fimc_set_bits(ctx, EXYNOS_CISRCFMT, EXYNOS_CISRCFMT_ITU601_8BIT);
+
+	/* disable image capture */
+	fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
+		EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
+
+	/* s/w reset */
+	fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
+
+	/* s/w reset complete */
+	fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
+
+	/* reset sequence */
+	fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
+}
+
+static int fimc_set_camblk_fimd0_wb(struct fimc_context *ctx)
+{
+	return regmap_update_bits(ctx->sysreg, SYSREG_CAMERA_BLK,
+				  SYSREG_FIMD0WB_DEST_MASK,
+				  ctx->id << SYSREG_FIMD0WB_DEST_SHIFT);
+}
+
+static void fimc_set_type_ctrl(struct fimc_context *ctx, enum fimc_wb wb)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("wb[%d]\n", wb);
+
+	cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+	cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
+		EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
+		EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
+		EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
+		EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
+		EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
+
+	switch (wb) {
+	case FIMC_WB_A:
+		cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_A |
+			EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
+		break;
+	case FIMC_WB_B:
+		cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_B |
+			EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
+		break;
+	case FIMC_WB_NONE:
+	default:
+		cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
+			EXYNOS_CIGCTRL_SELWRITEBACK_A |
+			EXYNOS_CIGCTRL_SELCAM_MIPI_A |
+			EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
+		break;
+	}
+
+	fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_set_polarity(struct fimc_context *ctx,
+		struct exynos_drm_ipp_pol *pol)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("inv_pclk[%d]inv_vsync[%d]\n",
+		pol->inv_pclk, pol->inv_vsync);
+	DRM_DEBUG_KMS("inv_href[%d]inv_hsync[%d]\n",
+		pol->inv_href, pol->inv_hsync);
+
+	cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+	cfg &= ~(EXYNOS_CIGCTRL_INVPOLPCLK | EXYNOS_CIGCTRL_INVPOLVSYNC |
+		 EXYNOS_CIGCTRL_INVPOLHREF | EXYNOS_CIGCTRL_INVPOLHSYNC);
+
+	if (pol->inv_pclk)
+		cfg |= EXYNOS_CIGCTRL_INVPOLPCLK;
+	if (pol->inv_vsync)
+		cfg |= EXYNOS_CIGCTRL_INVPOLVSYNC;
+	if (pol->inv_href)
+		cfg |= EXYNOS_CIGCTRL_INVPOLHREF;
+	if (pol->inv_hsync)
+		cfg |= EXYNOS_CIGCTRL_INVPOLHSYNC;
+
+	fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+	cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+	if (enable)
+		cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
+	else
+		cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
+
+	fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_mask_irq(struct fimc_context *ctx, bool enable)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+	cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+	if (enable) {
+		cfg &= ~EXYNOS_CIGCTRL_IRQ_OVFEN;
+		cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE | EXYNOS_CIGCTRL_IRQ_LEVEL;
+	} else
+		cfg &= ~EXYNOS_CIGCTRL_IRQ_ENABLE;
+	fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_clear_irq(struct fimc_context *ctx)
+{
+	fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_CLR);
+}
+
+static bool fimc_check_ovf(struct fimc_context *ctx)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 status, flag;
+
+	status = fimc_read(ctx, EXYNOS_CISTATUS);
+	flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
+		EXYNOS_CISTATUS_OVFICR;
+
+	DRM_DEBUG_KMS("flag[0x%x]\n", flag);
+
+	if (status & flag) {
+		fimc_set_bits(ctx, EXYNOS_CIWDOFST,
+			EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
+			EXYNOS_CIWDOFST_CLROVFICR);
+
+		dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
+			ctx->id, status);
+		return true;
+	}
+
+	return false;
+}
+
+static bool fimc_check_frame_end(struct fimc_context *ctx)
+{
+	u32 cfg;
+
+	cfg = fimc_read(ctx, EXYNOS_CISTATUS);
+
+	DRM_DEBUG_KMS("cfg[0x%x]\n", cfg);
+
+	if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
+		return false;
+
+	cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
+	fimc_write(ctx, cfg, EXYNOS_CISTATUS);
+
+	return true;
+}
+
+static int fimc_get_buf_id(struct fimc_context *ctx)
+{
+	u32 cfg;
+	int frame_cnt, buf_id;
+
+	cfg = fimc_read(ctx, EXYNOS_CISTATUS2);
+	frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
+
+	if (frame_cnt == 0)
+		frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
+
+	DRM_DEBUG_KMS("present[%d]before[%d]\n",
+		EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
+		EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
+
+	if (frame_cnt == 0) {
+		DRM_ERROR("failed to get frame count.\n");
+		return -EIO;
+	}
+
+	buf_id = frame_cnt - 1;
+	DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
+
+	return buf_id;
+}
+
+static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+	cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
+	if (enable)
+		cfg |= EXYNOS_CIOCTRL_LASTENDEN;
+	else
+		cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
+
+	fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
+}
+
+
+static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	/* RGB */
+	cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+	cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
+
+	switch (fmt) {
+	case DRM_FORMAT_RGB565:
+		cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
+		fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+		return 0;
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_XRGB8888:
+		cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
+		fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+		return 0;
+	default:
+		/* bypass */
+		break;
+	}
+
+	/* YUV */
+	cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+	cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
+		EXYNOS_MSCTRL_C_INT_IN_2PLANE |
+		EXYNOS_MSCTRL_ORDER422_YCBYCR);
+
+	switch (fmt) {
+	case DRM_FORMAT_YUYV:
+		cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
+		break;
+	case DRM_FORMAT_YVYU:
+		cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
+		break;
+	case DRM_FORMAT_UYVY:
+		cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
+		break;
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_YUV444:
+		cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
+		break;
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV61:
+		cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
+			EXYNOS_MSCTRL_C_INT_IN_2PLANE);
+		break;
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+		cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
+		break;
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+		cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
+			EXYNOS_MSCTRL_C_INT_IN_2PLANE);
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid source yuv order 0x%x.\n", fmt);
+		return -EINVAL;
+	}
+
+	fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+
+	return 0;
+}
+
+static int fimc_src_set_fmt(struct device *dev, u32 fmt)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+	cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
+
+	switch (fmt) {
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_XRGB8888:
+		cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
+		break;
+	case DRM_FORMAT_YUV444:
+		cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
+		break;
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVYU:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VYUY:
+		cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
+		break;
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV61:
+	case DRM_FORMAT_YUV422:
+		cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
+		break;
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+		cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid source format 0x%x.\n", fmt);
+		return -EINVAL;
+	}
+
+	fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+
+	cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
+	cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
+
+	cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
+
+	fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
+
+	return fimc_src_set_fmt_order(ctx, fmt);
+}
+
+static int fimc_src_set_transf(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg1, cfg2;
+
+	DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+	cfg1 = fimc_read(ctx, EXYNOS_MSCTRL);
+	cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
+		EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+
+	cfg2 = fimc_read(ctx, EXYNOS_CITRGFMT);
+	cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+
+	switch (degree) {
+	case EXYNOS_DRM_DEGREE_0:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_90:
+		cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_180:
+		cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
+			EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_270:
+		cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
+			EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+		cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+		return -EINVAL;
+	}
+
+	fimc_write(ctx, cfg1, EXYNOS_MSCTRL);
+	fimc_write(ctx, cfg2, EXYNOS_CITRGFMT);
+	*swap = (cfg2 & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) ? 1 : 0;
+
+	return 0;
+}
+
+static int fimc_set_window(struct fimc_context *ctx,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+	u32 cfg, h1, h2, v1, v2;
+
+	/* cropped image */
+	h1 = pos->x;
+	h2 = sz->hsize - pos->w - pos->x;
+	v1 = pos->y;
+	v2 = sz->vsize - pos->h - pos->y;
+
+	DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
+		pos->x, pos->y, pos->w, pos->h, sz->hsize, sz->vsize);
+	DRM_DEBUG_KMS("h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1, v2);
+
+	/*
+	 * set window offset 1, 2 size
+	 * check figure 43-21 in user manual
+	 */
+	cfg = fimc_read(ctx, EXYNOS_CIWDOFST);
+	cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
+		EXYNOS_CIWDOFST_WINVEROFST_MASK);
+	cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
+		EXYNOS_CIWDOFST_WINVEROFST(v1));
+	cfg |= EXYNOS_CIWDOFST_WINOFSEN;
+	fimc_write(ctx, cfg, EXYNOS_CIWDOFST);
+
+	cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
+		EXYNOS_CIWDOFST2_WINVEROFST2(v2));
+	fimc_write(ctx, cfg, EXYNOS_CIWDOFST2);
+
+	return 0;
+}
+
+static int fimc_src_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct drm_exynos_pos img_pos = *pos;
+	struct drm_exynos_sz img_sz = *sz;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
+		swap, sz->hsize, sz->vsize);
+
+	/* original size */
+	cfg = (EXYNOS_ORGISIZE_HORIZONTAL(img_sz.hsize) |
+		EXYNOS_ORGISIZE_VERTICAL(img_sz.vsize));
+
+	fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
+
+	DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
+
+	if (swap) {
+		img_pos.w = pos->h;
+		img_pos.h = pos->w;
+		img_sz.hsize = sz->vsize;
+		img_sz.vsize = sz->hsize;
+	}
+
+	/* set input DMA image size */
+	cfg = fimc_read(ctx, EXYNOS_CIREAL_ISIZE);
+	cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
+		EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
+	cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(img_pos.w) |
+		EXYNOS_CIREAL_ISIZE_HEIGHT(img_pos.h));
+	fimc_write(ctx, cfg, EXYNOS_CIREAL_ISIZE);
+
+	/*
+	 * set input FIFO image size
+	 * for now, we support only ITU601 8 bit mode
+	 */
+	cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
+		EXYNOS_CISRCFMT_SOURCEHSIZE(img_sz.hsize) |
+		EXYNOS_CISRCFMT_SOURCEVSIZE(img_sz.vsize));
+	fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
+
+	/* offset Y(RGB), Cb, Cr */
+	cfg = (EXYNOS_CIIYOFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIIYOFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIIYOFF);
+	cfg = (EXYNOS_CIICBOFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIICBOFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIICBOFF);
+	cfg = (EXYNOS_CIICROFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIICROFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIICROFF);
+
+	return fimc_set_window(ctx, &img_pos, &img_sz);
+}
+
+static int fimc_src_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+	struct drm_exynos_ipp_config *config;
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EINVAL;
+	}
+
+	property = &c_node->property;
+
+	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+		property->prop_id, buf_id, buf_type);
+
+	if (buf_id > FIMC_MAX_SRC) {
+		dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+		return -ENOMEM;
+	}
+
+	/* address register set */
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		config = &property->config[EXYNOS_DRM_OPS_SRC];
+		fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
+			EXYNOS_CIIYSA0);
+
+		if (config->fmt == DRM_FORMAT_YVU420) {
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+				EXYNOS_CIICBSA0);
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+				EXYNOS_CIICRSA0);
+		} else {
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+				EXYNOS_CIICBSA0);
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+				EXYNOS_CIICRSA0);
+		}
+		break;
+	case IPP_BUF_DEQUEUE:
+		fimc_write(ctx, 0x0, EXYNOS_CIIYSA0);
+		fimc_write(ctx, 0x0, EXYNOS_CIICBSA0);
+		fimc_write(ctx, 0x0, EXYNOS_CIICRSA0);
+		break;
+	default:
+		/* bypass */
+		break;
+	}
+
+	return 0;
+}
+
+static struct exynos_drm_ipp_ops fimc_src_ops = {
+	.set_fmt = fimc_src_set_fmt,
+	.set_transf = fimc_src_set_transf,
+	.set_size = fimc_src_set_size,
+	.set_addr = fimc_src_set_addr,
+};
+
+static int fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	/* RGB */
+	cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+	cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
+
+	switch (fmt) {
+	case DRM_FORMAT_RGB565:
+		cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
+		fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+		return 0;
+	case DRM_FORMAT_RGB888:
+		cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
+		fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+		return 0;
+	case DRM_FORMAT_XRGB8888:
+		cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
+			EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
+		fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+		break;
+	default:
+		/* bypass */
+		break;
+	}
+
+	/* YUV */
+	cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
+	cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
+		EXYNOS_CIOCTRL_ORDER422_MASK |
+		EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
+
+	switch (fmt) {
+	case DRM_FORMAT_XRGB8888:
+		cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
+		break;
+	case DRM_FORMAT_YUYV:
+		cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
+		break;
+	case DRM_FORMAT_YVYU:
+		cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
+		break;
+	case DRM_FORMAT_UYVY:
+		cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
+		break;
+	case DRM_FORMAT_VYUY:
+		cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
+		break;
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV61:
+		cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
+		cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
+		break;
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+		cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
+		break;
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+		cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
+		cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+		return -EINVAL;
+	}
+
+	fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
+
+	return 0;
+}
+
+static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	cfg = fimc_read(ctx, EXYNOS_CIEXTEN);
+
+	if (fmt == DRM_FORMAT_AYUV) {
+		cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
+		fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
+	} else {
+		cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
+		fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
+
+		cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+		cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
+
+		switch (fmt) {
+		case DRM_FORMAT_RGB565:
+		case DRM_FORMAT_RGB888:
+		case DRM_FORMAT_XRGB8888:
+			cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
+			break;
+		case DRM_FORMAT_YUYV:
+		case DRM_FORMAT_YVYU:
+		case DRM_FORMAT_UYVY:
+		case DRM_FORMAT_VYUY:
+			cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
+			break;
+		case DRM_FORMAT_NV16:
+		case DRM_FORMAT_NV61:
+		case DRM_FORMAT_YUV422:
+			cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
+			break;
+		case DRM_FORMAT_YUV420:
+		case DRM_FORMAT_YVU420:
+		case DRM_FORMAT_NV12:
+		case DRM_FORMAT_NV21:
+			cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
+			break;
+		default:
+			dev_err(ippdrv->dev, "inavlid target format 0x%x.\n",
+				fmt);
+			return -EINVAL;
+		}
+
+		fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+	}
+
+	cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
+	cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
+
+	cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
+
+	fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
+
+	return fimc_dst_set_fmt_order(ctx, fmt);
+}
+
+static int fimc_dst_set_transf(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+	cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+	cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
+	cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
+
+	switch (degree) {
+	case EXYNOS_DRM_DEGREE_0:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_90:
+		cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_180:
+		cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
+			EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+		break;
+	case EXYNOS_DRM_DEGREE_270:
+		cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
+			EXYNOS_CITRGFMT_FLIP_X_MIRROR |
+			EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+		return -EINVAL;
+	}
+
+	fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+	*swap = (cfg & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) ? 1 : 0;
+
+	return 0;
+}
+
+static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
+		struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg, cfg_ext, shfactor;
+	u32 pre_dst_width, pre_dst_height;
+	u32 hfactor, vfactor;
+	int ret = 0;
+	u32 src_w, src_h, dst_w, dst_h;
+
+	cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
+	if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
+		src_w = src->h;
+		src_h = src->w;
+	} else {
+		src_w = src->w;
+		src_h = src->h;
+	}
+
+	if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
+		dst_w = dst->h;
+		dst_h = dst->w;
+	} else {
+		dst_w = dst->w;
+		dst_h = dst->h;
+	}
+
+	/* fimc_ippdrv_check_property assures that dividers are not null */
+	hfactor = fls(src_w / dst_w / 2);
+	if (hfactor > FIMC_SHFACTOR / 2) {
+		dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
+		return -EINVAL;
+	}
+
+	vfactor = fls(src_h / dst_h / 2);
+	if (vfactor > FIMC_SHFACTOR / 2) {
+		dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
+		return -EINVAL;
+	}
+
+	pre_dst_width = src_w >> hfactor;
+	pre_dst_height = src_h >> vfactor;
+	DRM_DEBUG_KMS("pre_dst_width[%d]pre_dst_height[%d]\n",
+		pre_dst_width, pre_dst_height);
+	DRM_DEBUG_KMS("hfactor[%d]vfactor[%d]\n", hfactor, vfactor);
+
+	sc->hratio = (src_w << 14) / (dst_w << hfactor);
+	sc->vratio = (src_h << 14) / (dst_h << vfactor);
+	sc->up_h = (dst_w >= src_w) ? true : false;
+	sc->up_v = (dst_h >= src_h) ? true : false;
+	DRM_DEBUG_KMS("hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
+		sc->hratio, sc->vratio, sc->up_h, sc->up_v);
+
+	shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
+	DRM_DEBUG_KMS("shfactor[%d]\n", shfactor);
+
+	cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
+		EXYNOS_CISCPRERATIO_PREHORRATIO(1 << hfactor) |
+		EXYNOS_CISCPRERATIO_PREVERRATIO(1 << vfactor));
+	fimc_write(ctx, cfg, EXYNOS_CISCPRERATIO);
+
+	cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
+		EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
+	fimc_write(ctx, cfg, EXYNOS_CISCPREDST);
+
+	return ret;
+}
+
+static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
+{
+	u32 cfg, cfg_ext;
+
+	DRM_DEBUG_KMS("range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
+		sc->range, sc->bypass, sc->up_h, sc->up_v);
+	DRM_DEBUG_KMS("hratio[%d]vratio[%d]\n",
+		sc->hratio, sc->vratio);
+
+	cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+	cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
+		EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
+		EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
+		EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
+		EXYNOS_CISCCTRL_CSCR2Y_WIDE |
+		EXYNOS_CISCCTRL_CSCY2R_WIDE);
+
+	if (sc->range)
+		cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
+			EXYNOS_CISCCTRL_CSCY2R_WIDE);
+	if (sc->bypass)
+		cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
+	if (sc->up_h)
+		cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
+	if (sc->up_v)
+		cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
+
+	cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
+		EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
+	fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+
+	cfg_ext = fimc_read(ctx, EXYNOS_CIEXTEN);
+	cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
+	cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
+	cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
+		EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
+	fimc_write(ctx, cfg_ext, EXYNOS_CIEXTEN);
+}
+
+static int fimc_dst_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct drm_exynos_pos img_pos = *pos;
+	struct drm_exynos_sz img_sz = *sz;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
+		swap, sz->hsize, sz->vsize);
+
+	/* original size */
+	cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(img_sz.hsize) |
+		EXYNOS_ORGOSIZE_VERTICAL(img_sz.vsize));
+
+	fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);
+
+	DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
+
+	/* CSC ITU */
+	cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+	cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
+
+	if (sz->hsize >= FIMC_WIDTH_ITU_709)
+		cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
+	else
+		cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
+
+	fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+
+	if (swap) {
+		img_pos.w = pos->h;
+		img_pos.h = pos->w;
+		img_sz.hsize = sz->vsize;
+		img_sz.vsize = sz->hsize;
+	}
+
+	/* target image size */
+	cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+	cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
+		EXYNOS_CITRGFMT_TARGETV_MASK);
+	cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(img_pos.w) |
+		EXYNOS_CITRGFMT_TARGETVSIZE(img_pos.h));
+	fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+
+	/* target area */
+	cfg = EXYNOS_CITAREA_TARGET_AREA(img_pos.w * img_pos.h);
+	fimc_write(ctx, cfg, EXYNOS_CITAREA);
+
+	/* offset Y(RGB), Cb, Cr */
+	cfg = (EXYNOS_CIOYOFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIOYOFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIOYOFF);
+	cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIOCBOFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIOCBOFF);
+	cfg = (EXYNOS_CIOCROFF_HORIZONTAL(img_pos.x) |
+		EXYNOS_CIOCROFF_VERTICAL(img_pos.y));
+	fimc_write(ctx, cfg, EXYNOS_CIOCROFF);
+
+	return 0;
+}
+
+static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	unsigned long flags;
+	u32 buf_num;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
+
+	spin_lock_irqsave(&ctx->lock, flags);
+
+	cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
+
+	if (buf_type == IPP_BUF_ENQUEUE)
+		cfg |= (1 << buf_id);
+	else
+		cfg &= ~(1 << buf_id);
+
+	fimc_write(ctx, cfg, EXYNOS_CIFCNTSEQ);
+
+	buf_num = hweight32(cfg);
+
+	if (buf_type == IPP_BUF_ENQUEUE && buf_num >= FIMC_BUF_START)
+		fimc_mask_irq(ctx, true);
+	else if (buf_type == IPP_BUF_DEQUEUE && buf_num <= FIMC_BUF_STOP)
+		fimc_mask_irq(ctx, false);
+
+	spin_unlock_irqrestore(&ctx->lock, flags);
+}
+
+static int fimc_dst_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+	struct drm_exynos_ipp_config *config;
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EINVAL;
+	}
+
+	property = &c_node->property;
+
+	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+		property->prop_id, buf_id, buf_type);
+
+	if (buf_id > FIMC_MAX_DST) {
+		dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+		return -ENOMEM;
+	}
+
+	/* address register set */
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		config = &property->config[EXYNOS_DRM_OPS_DST];
+
+		fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
+			EXYNOS_CIOYSA(buf_id));
+
+		if (config->fmt == DRM_FORMAT_YVU420) {
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+				EXYNOS_CIOCBSA(buf_id));
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+				EXYNOS_CIOCRSA(buf_id));
+		} else {
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+				EXYNOS_CIOCBSA(buf_id));
+			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+				EXYNOS_CIOCRSA(buf_id));
+		}
+		break;
+	case IPP_BUF_DEQUEUE:
+		fimc_write(ctx, 0x0, EXYNOS_CIOYSA(buf_id));
+		fimc_write(ctx, 0x0, EXYNOS_CIOCBSA(buf_id));
+		fimc_write(ctx, 0x0, EXYNOS_CIOCRSA(buf_id));
+		break;
+	default:
+		/* bypass */
+		break;
+	}
+
+	fimc_dst_set_buf_seq(ctx, buf_id, buf_type);
+
+	return 0;
+}
+
+static struct exynos_drm_ipp_ops fimc_dst_ops = {
+	.set_fmt = fimc_dst_set_fmt,
+	.set_transf = fimc_dst_set_transf,
+	.set_size = fimc_dst_set_size,
+	.set_addr = fimc_dst_set_addr,
+};
+
+static int fimc_clk_ctrl(struct fimc_context *ctx, bool enable)
+{
+	DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+	if (enable) {
+		clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
+		clk_prepare_enable(ctx->clocks[FIMC_CLK_WB_A]);
+		ctx->suspended = false;
+	} else {
+		clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
+		clk_disable_unprepare(ctx->clocks[FIMC_CLK_WB_A]);
+		ctx->suspended = true;
+	}
+
+	return 0;
+}
+
+static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
+{
+	struct fimc_context *ctx = dev_id;
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_event_work *event_work =
+		c_node->event_work;
+	int buf_id;
+
+	DRM_DEBUG_KMS("fimc id[%d]\n", ctx->id);
+
+	fimc_clear_irq(ctx);
+	if (fimc_check_ovf(ctx))
+		return IRQ_NONE;
+
+	if (!fimc_check_frame_end(ctx))
+		return IRQ_NONE;
+
+	buf_id = fimc_get_buf_id(ctx);
+	if (buf_id < 0)
+		return IRQ_HANDLED;
+
+	DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
+
+	fimc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
+
+	event_work->ippdrv = ippdrv;
+	event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
+	queue_work(ippdrv->event_workq, &event_work->work);
+
+	return IRQ_HANDLED;
+}
+
+static int fimc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
+{
+	struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
+
+	prop_list->version = 1;
+	prop_list->writeback = 1;
+	prop_list->refresh_min = FIMC_REFRESH_MIN;
+	prop_list->refresh_max = FIMC_REFRESH_MAX;
+	prop_list->flip = (1 << EXYNOS_DRM_FLIP_NONE) |
+				(1 << EXYNOS_DRM_FLIP_VERTICAL) |
+				(1 << EXYNOS_DRM_FLIP_HORIZONTAL);
+	prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
+				(1 << EXYNOS_DRM_DEGREE_90) |
+				(1 << EXYNOS_DRM_DEGREE_180) |
+				(1 << EXYNOS_DRM_DEGREE_270);
+	prop_list->csc = 1;
+	prop_list->crop = 1;
+	prop_list->crop_max.hsize = FIMC_CROP_MAX;
+	prop_list->crop_max.vsize = FIMC_CROP_MAX;
+	prop_list->crop_min.hsize = FIMC_CROP_MIN;
+	prop_list->crop_min.vsize = FIMC_CROP_MIN;
+	prop_list->scale = 1;
+	prop_list->scale_max.hsize = FIMC_SCALE_MAX;
+	prop_list->scale_max.vsize = FIMC_SCALE_MAX;
+	prop_list->scale_min.hsize = FIMC_SCALE_MIN;
+	prop_list->scale_min.vsize = FIMC_SCALE_MIN;
+
+	return 0;
+}
+
+static inline bool fimc_check_drm_flip(enum drm_exynos_flip flip)
+{
+	switch (flip) {
+	case EXYNOS_DRM_FLIP_NONE:
+	case EXYNOS_DRM_FLIP_VERTICAL:
+	case EXYNOS_DRM_FLIP_HORIZONTAL:
+	case EXYNOS_DRM_FLIP_BOTH:
+		return true;
+	default:
+		DRM_DEBUG_KMS("invalid flip\n");
+		return false;
+	}
+}
+
+static int fimc_ippdrv_check_property(struct device *dev,
+		struct drm_exynos_ipp_property *property)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_prop_list *pp = &ippdrv->prop_list;
+	struct drm_exynos_ipp_config *config;
+	struct drm_exynos_pos *pos;
+	struct drm_exynos_sz *sz;
+	bool swap;
+	int i;
+
+	for_each_ipp_ops(i) {
+		if ((i == EXYNOS_DRM_OPS_SRC) &&
+			(property->cmd == IPP_CMD_WB))
+			continue;
+
+		config = &property->config[i];
+		pos = &config->pos;
+		sz = &config->sz;
+
+		/* check for flip */
+		if (!fimc_check_drm_flip(config->flip)) {
+			DRM_ERROR("invalid flip.\n");
+			goto err_property;
+		}
+
+		/* check for degree */
+		switch (config->degree) {
+		case EXYNOS_DRM_DEGREE_90:
+		case EXYNOS_DRM_DEGREE_270:
+			swap = true;
+			break;
+		case EXYNOS_DRM_DEGREE_0:
+		case EXYNOS_DRM_DEGREE_180:
+			swap = false;
+			break;
+		default:
+			DRM_ERROR("invalid degree.\n");
+			goto err_property;
+		}
+
+		/* check for buffer bound */
+		if ((pos->x + pos->w > sz->hsize) ||
+			(pos->y + pos->h > sz->vsize)) {
+			DRM_ERROR("out of buf bound.\n");
+			goto err_property;
+		}
+
+		/* check for crop */
+		if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
+			if (swap) {
+				if ((pos->h < pp->crop_min.hsize) ||
+					(sz->vsize > pp->crop_max.hsize) ||
+					(pos->w < pp->crop_min.vsize) ||
+					(sz->hsize > pp->crop_max.vsize)) {
+					DRM_ERROR("out of crop size.\n");
+					goto err_property;
+				}
+			} else {
+				if ((pos->w < pp->crop_min.hsize) ||
+					(sz->hsize > pp->crop_max.hsize) ||
+					(pos->h < pp->crop_min.vsize) ||
+					(sz->vsize > pp->crop_max.vsize)) {
+					DRM_ERROR("out of crop size.\n");
+					goto err_property;
+				}
+			}
+		}
+
+		/* check for scale */
+		if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
+			if (swap) {
+				if ((pos->h < pp->scale_min.hsize) ||
+					(sz->vsize > pp->scale_max.hsize) ||
+					(pos->w < pp->scale_min.vsize) ||
+					(sz->hsize > pp->scale_max.vsize)) {
+					DRM_ERROR("out of scale size.\n");
+					goto err_property;
+				}
+			} else {
+				if ((pos->w < pp->scale_min.hsize) ||
+					(sz->hsize > pp->scale_max.hsize) ||
+					(pos->h < pp->scale_min.vsize) ||
+					(sz->vsize > pp->scale_max.vsize)) {
+					DRM_ERROR("out of scale size.\n");
+					goto err_property;
+				}
+			}
+		}
+	}
+
+	return 0;
+
+err_property:
+	for_each_ipp_ops(i) {
+		if ((i == EXYNOS_DRM_OPS_SRC) &&
+			(property->cmd == IPP_CMD_WB))
+			continue;
+
+		config = &property->config[i];
+		pos = &config->pos;
+		sz = &config->sz;
+
+		DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
+			i ? "dst" : "src", config->flip, config->degree,
+			pos->x, pos->y, pos->w, pos->h,
+			sz->hsize, sz->vsize);
+	}
+
+	return -EINVAL;
+}
+
+static void fimc_clear_addr(struct fimc_context *ctx)
+{
+	int i;
+
+	for (i = 0; i < FIMC_MAX_SRC; i++) {
+		fimc_write(ctx, 0, EXYNOS_CIIYSA(i));
+		fimc_write(ctx, 0, EXYNOS_CIICBSA(i));
+		fimc_write(ctx, 0, EXYNOS_CIICRSA(i));
+	}
+
+	for (i = 0; i < FIMC_MAX_DST; i++) {
+		fimc_write(ctx, 0, EXYNOS_CIOYSA(i));
+		fimc_write(ctx, 0, EXYNOS_CIOCBSA(i));
+		fimc_write(ctx, 0, EXYNOS_CIOCRSA(i));
+	}
+}
+
+static int fimc_ippdrv_reset(struct device *dev)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+
+	/* reset h/w block */
+	fimc_sw_reset(ctx);
+
+	/* reset scaler capability */
+	memset(&ctx->sc, 0x0, sizeof(ctx->sc));
+
+	fimc_clear_addr(ctx);
+
+	return 0;
+}
+
+static int fimc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+	struct drm_exynos_ipp_config *config;
+	struct drm_exynos_pos	img_pos[EXYNOS_DRM_OPS_MAX];
+	struct drm_exynos_ipp_set_wb set_wb;
+	int ret, i;
+	u32 cfg0, cfg1;
+
+	DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EINVAL;
+	}
+
+	property = &c_node->property;
+
+	fimc_mask_irq(ctx, true);
+
+	for_each_ipp_ops(i) {
+		config = &property->config[i];
+		img_pos[i] = config->pos;
+	}
+
+	ret = fimc_set_prescaler(ctx, &ctx->sc,
+		&img_pos[EXYNOS_DRM_OPS_SRC],
+		&img_pos[EXYNOS_DRM_OPS_DST]);
+	if (ret) {
+		dev_err(dev, "failed to set precalser.\n");
+		return ret;
+	}
+
+	/* If set ture, we can save jpeg about screen */
+	fimc_handle_jpeg(ctx, false);
+	fimc_set_scaler(ctx, &ctx->sc);
+	fimc_set_polarity(ctx, &ctx->pol);
+
+	switch (cmd) {
+	case IPP_CMD_M2M:
+		fimc_set_type_ctrl(ctx, FIMC_WB_NONE);
+		fimc_handle_lastend(ctx, false);
+
+		/* setup dma */
+		cfg0 = fimc_read(ctx, EXYNOS_MSCTRL);
+		cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
+		cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
+		fimc_write(ctx, cfg0, EXYNOS_MSCTRL);
+		break;
+	case IPP_CMD_WB:
+		fimc_set_type_ctrl(ctx, FIMC_WB_A);
+		fimc_handle_lastend(ctx, true);
+
+		/* setup FIMD */
+		ret = fimc_set_camblk_fimd0_wb(ctx);
+		if (ret < 0) {
+			dev_err(dev, "camblk setup failed.\n");
+			return ret;
+		}
+
+		set_wb.enable = 1;
+		set_wb.refresh = property->refresh_rate;
+		exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+		break;
+	case IPP_CMD_OUTPUT:
+	default:
+		ret = -EINVAL;
+		dev_err(dev, "invalid operations.\n");
+		return ret;
+	}
+
+	/* Reset status */
+	fimc_write(ctx, 0x0, EXYNOS_CISTATUS);
+
+	cfg0 = fimc_read(ctx, EXYNOS_CIIMGCPT);
+	cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
+	cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
+
+	/* Scaler */
+	cfg1 = fimc_read(ctx, EXYNOS_CISCCTRL);
+	cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
+	cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
+		EXYNOS_CISCCTRL_SCALERSTART);
+
+	fimc_write(ctx, cfg1, EXYNOS_CISCCTRL);
+
+	/* Enable image capture*/
+	cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
+	fimc_write(ctx, cfg0, EXYNOS_CIIMGCPT);
+
+	/* Disable frame end irq */
+	fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
+
+	fimc_clear_bits(ctx, EXYNOS_CIOCTRL, EXYNOS_CIOCTRL_WEAVE_MASK);
+
+	if (cmd == IPP_CMD_M2M)
+		fimc_set_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
+
+	return 0;
+}
+
+static void fimc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct drm_exynos_ipp_set_wb set_wb = {0, 0};
+	u32 cfg;
+
+	DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+	switch (cmd) {
+	case IPP_CMD_M2M:
+		/* Source clear */
+		cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+		cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
+		cfg &= ~EXYNOS_MSCTRL_ENVID;
+		fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+		break;
+	case IPP_CMD_WB:
+		exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+		break;
+	case IPP_CMD_OUTPUT:
+	default:
+		dev_err(dev, "invalid operations.\n");
+		break;
+	}
+
+	fimc_mask_irq(ctx, false);
+
+	/* reset sequence */
+	fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
+
+	/* Scaler disable */
+	fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
+
+	/* Disable image capture */
+	fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
+		EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
+
+	/* Enable frame end irq */
+	fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
+}
+
+static void fimc_put_clocks(struct fimc_context *ctx)
+{
+	int i;
+
+	for (i = 0; i < FIMC_CLKS_MAX; i++) {
+		if (IS_ERR(ctx->clocks[i]))
+			continue;
+		clk_put(ctx->clocks[i]);
+		ctx->clocks[i] = ERR_PTR(-EINVAL);
+	}
+}
+
+static int fimc_setup_clocks(struct fimc_context *ctx)
+{
+	struct device *fimc_dev = ctx->ippdrv.dev;
+	struct device *dev;
+	int ret, i;
+
+	for (i = 0; i < FIMC_CLKS_MAX; i++)
+		ctx->clocks[i] = ERR_PTR(-EINVAL);
+
+	for (i = 0; i < FIMC_CLKS_MAX; i++) {
+		if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
+			dev = fimc_dev->parent;
+		else
+			dev = fimc_dev;
+
+		ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
+		if (IS_ERR(ctx->clocks[i])) {
+			if (i >= FIMC_CLK_MUX)
+				break;
+			ret = PTR_ERR(ctx->clocks[i]);
+			dev_err(fimc_dev, "failed to get clock: %s\n",
+						fimc_clock_names[i]);
+			goto e_clk_free;
+		}
+	}
+
+	/* Optional FIMC LCLK parent clock setting */
+	if (!IS_ERR(ctx->clocks[FIMC_CLK_PARENT])) {
+		ret = clk_set_parent(ctx->clocks[FIMC_CLK_MUX],
+				     ctx->clocks[FIMC_CLK_PARENT]);
+		if (ret < 0) {
+			dev_err(fimc_dev, "failed to set parent.\n");
+			goto e_clk_free;
+		}
+	}
+
+	ret = clk_set_rate(ctx->clocks[FIMC_CLK_LCLK], ctx->clk_frequency);
+	if (ret < 0)
+		goto e_clk_free;
+
+	ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
+	if (!ret)
+		return ret;
+e_clk_free:
+	fimc_put_clocks(ctx);
+	return ret;
+}
+
+static int fimc_parse_dt(struct fimc_context *ctx)
+{
+	struct device_node *node = ctx->ippdrv.dev->of_node;
+
+	/* Handle only devices that support the LCD Writeback data path */
+	if (!of_property_read_bool(node, "samsung,lcd-wb"))
+		return -ENODEV;
+
+	if (of_property_read_u32(node, "clock-frequency",
+					&ctx->clk_frequency))
+		ctx->clk_frequency = FIMC_DEFAULT_LCLK_FREQUENCY;
+
+	ctx->id = of_alias_get_id(node, "fimc");
+
+	if (ctx->id < 0) {
+		dev_err(ctx->ippdrv.dev, "failed to get node alias id.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fimc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fimc_context *ctx;
+	struct resource *res;
+	struct exynos_drm_ippdrv *ippdrv;
+	int ret;
+
+	if (!dev->of_node) {
+		dev_err(dev, "device tree node not found.\n");
+		return -ENODEV;
+	}
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->ippdrv.dev = dev;
+
+	ret = fimc_parse_dt(ctx);
+	if (ret < 0)
+		return ret;
+
+	ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
+						"samsung,sysreg");
+	if (IS_ERR(ctx->sysreg)) {
+		dev_err(dev, "syscon regmap lookup failed.\n");
+		return PTR_ERR(ctx->sysreg);
+	}
+
+	/* resource memory */
+	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
+
+	/* resource irq */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "failed to request irq resource.\n");
+		return -ENOENT;
+	}
+
+	ctx->irq = res->start;
+	ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler,
+		IRQF_ONESHOT, "drm_fimc", ctx);
+	if (ret < 0) {
+		dev_err(dev, "failed to request irq.\n");
+		return ret;
+	}
+
+	ret = fimc_setup_clocks(ctx);
+	if (ret < 0)
+		return ret;
+
+	ippdrv = &ctx->ippdrv;
+	ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops;
+	ippdrv->ops[EXYNOS_DRM_OPS_DST] = &fimc_dst_ops;
+	ippdrv->check_property = fimc_ippdrv_check_property;
+	ippdrv->reset = fimc_ippdrv_reset;
+	ippdrv->start = fimc_ippdrv_start;
+	ippdrv->stop = fimc_ippdrv_stop;
+	ret = fimc_init_prop_list(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to init property list.\n");
+		goto err_put_clk;
+	}
+
+	DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
+
+	spin_lock_init(&ctx->lock);
+	platform_set_drvdata(pdev, ctx);
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	ret = exynos_drm_ippdrv_register(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to register drm fimc device.\n");
+		goto err_pm_dis;
+	}
+
+	dev_info(dev, "drm fimc registered successfully.\n");
+
+	return 0;
+
+err_pm_dis:
+	pm_runtime_disable(dev);
+err_put_clk:
+	fimc_put_clocks(ctx);
+
+	return ret;
+}
+
+static int fimc_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fimc_context *ctx = get_fimc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+
+	exynos_drm_ippdrv_unregister(ippdrv);
+
+	fimc_put_clocks(ctx);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_disable(dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int fimc_suspend(struct device *dev)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	return fimc_clk_ctrl(ctx, false);
+}
+
+static int fimc_resume(struct device *dev)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	if (!pm_runtime_suspended(dev))
+		return fimc_clk_ctrl(ctx, true);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM
+static int fimc_runtime_suspend(struct device *dev)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	return  fimc_clk_ctrl(ctx, false);
+}
+
+static int fimc_runtime_resume(struct device *dev)
+{
+	struct fimc_context *ctx = get_fimc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	return  fimc_clk_ctrl(ctx, true);
+}
+#endif
+
+static const struct dev_pm_ops fimc_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
+	SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
+};
+
+static const struct of_device_id fimc_of_match[] = {
+	{ .compatible = "samsung,exynos4210-fimc" },
+	{ .compatible = "samsung,exynos4212-fimc" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, fimc_of_match);
+
+struct platform_driver fimc_driver = {
+	.probe		= fimc_probe,
+	.remove		= fimc_remove,
+	.driver		= {
+		.of_match_table = fimc_of_match,
+		.name	= "exynos-drm-fimc",
+		.owner	= THIS_MODULE,
+		.pm	= &fimc_pm_ops,
+	},
+};
+
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.h
new file mode 100644
index 000000000..127a424c5
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimc.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_FIMC_H_
+#define _EXYNOS_DRM_FIMC_H_
+
+/*
+ * TODO
+ * FIMD output interface notifier callback.
+ */
+
+#endif /* _EXYNOS_DRM_FIMC_H_ */
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimd.c
new file mode 100644
index 000000000..a0edab833
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -0,0 +1,1216 @@
+/* exynos_drm_fimd.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <drm/drmP.h>
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/component.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+#include <video/samsung_fimd.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_fbdev.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
+#include "exynos_drm_iommu.h"
+
+/*
+ * FIMD stands for Fully Interactive Mobile Display and
+ * as a display controller, it transfers contents drawn on memory
+ * to a LCD Panel through Display Interfaces such as RGB or
+ * CPU Interface.
+ */
+
+#define FIMD_DEFAULT_FRAMERATE 60
+#define MIN_FB_WIDTH_FOR_16WORD_BURST 128
+
+/* position control register for hardware window 0, 2 ~ 4.*/
+#define VIDOSD_A(win)		(VIDOSD_BASE + 0x00 + (win) * 16)
+#define VIDOSD_B(win)		(VIDOSD_BASE + 0x04 + (win) * 16)
+/*
+ * size control register for hardware windows 0 and alpha control register
+ * for hardware windows 1 ~ 4
+ */
+#define VIDOSD_C(win)		(VIDOSD_BASE + 0x08 + (win) * 16)
+/* size control register for hardware windows 1 ~ 2. */
+#define VIDOSD_D(win)		(VIDOSD_BASE + 0x0C + (win) * 16)
+
+#define VIDWnALPHA0(win)	(VIDW_ALPHA + 0x00 + (win) * 8)
+#define VIDWnALPHA1(win)	(VIDW_ALPHA + 0x04 + (win) * 8)
+
+#define VIDWx_BUF_START(win, buf)	(VIDW_BUF_START(buf) + (win) * 8)
+#define VIDWx_BUF_END(win, buf)		(VIDW_BUF_END(buf) + (win) * 8)
+#define VIDWx_BUF_SIZE(win, buf)	(VIDW_BUF_SIZE(buf) + (win) * 4)
+
+/* color key control register for hardware window 1 ~ 4. */
+#define WKEYCON0_BASE(x)		((WKEYCON0 + 0x140) + ((x - 1) * 8))
+/* color key value register for hardware window 1 ~ 4. */
+#define WKEYCON1_BASE(x)		((WKEYCON1 + 0x140) + ((x - 1) * 8))
+
+/* I80 / RGB trigger control register */
+#define TRIGCON				0x1A4
+#define TRGMODE_I80_RGB_ENABLE_I80	(1 << 0)
+#define SWTRGCMD_I80_RGB_ENABLE		(1 << 1)
+
+/* display mode change control register except exynos4 */
+#define VIDOUT_CON			0x000
+#define VIDOUT_CON_F_I80_LDI0		(0x2 << 8)
+
+/* I80 interface control for main LDI register */
+#define I80IFCONFAx(x)			(0x1B0 + (x) * 4)
+#define I80IFCONFBx(x)			(0x1B8 + (x) * 4)
+#define LCD_CS_SETUP(x)			((x) << 16)
+#define LCD_WR_SETUP(x)			((x) << 12)
+#define LCD_WR_ACTIVE(x)		((x) << 8)
+#define LCD_WR_HOLD(x)			((x) << 4)
+#define I80IFEN_ENABLE			(1 << 0)
+
+/* FIMD has totally five hardware windows. */
+#define WINDOWS_NR	5
+
+struct fimd_driver_data {
+	unsigned int timing_base;
+	unsigned int lcdblk_offset;
+	unsigned int lcdblk_vt_shift;
+	unsigned int lcdblk_bypass_shift;
+
+	unsigned int has_shadowcon:1;
+	unsigned int has_clksel:1;
+	unsigned int has_limited_fmt:1;
+	unsigned int has_vidoutcon:1;
+	unsigned int has_vtsel:1;
+};
+
+static struct fimd_driver_data s3c64xx_fimd_driver_data = {
+	.timing_base = 0x0,
+	.has_clksel = 1,
+	.has_limited_fmt = 1,
+};
+
+static struct fimd_driver_data exynos3_fimd_driver_data = {
+	.timing_base = 0x20000,
+	.lcdblk_offset = 0x210,
+	.lcdblk_bypass_shift = 1,
+	.has_shadowcon = 1,
+	.has_vidoutcon = 1,
+};
+
+static struct fimd_driver_data exynos4_fimd_driver_data = {
+	.timing_base = 0x0,
+	.lcdblk_offset = 0x210,
+	.lcdblk_vt_shift = 10,
+	.lcdblk_bypass_shift = 1,
+	.has_shadowcon = 1,
+	.has_vtsel = 1,
+};
+
+static struct fimd_driver_data exynos4415_fimd_driver_data = {
+	.timing_base = 0x20000,
+	.lcdblk_offset = 0x210,
+	.lcdblk_vt_shift = 10,
+	.lcdblk_bypass_shift = 1,
+	.has_shadowcon = 1,
+	.has_vidoutcon = 1,
+	.has_vtsel = 1,
+};
+
+static struct fimd_driver_data exynos5_fimd_driver_data = {
+	.timing_base = 0x20000,
+	.lcdblk_offset = 0x214,
+	.lcdblk_vt_shift = 24,
+	.lcdblk_bypass_shift = 15,
+	.has_shadowcon = 1,
+	.has_vidoutcon = 1,
+	.has_vtsel = 1,
+};
+
+struct fimd_context {
+	struct device			*dev;
+	struct drm_device		*drm_dev;
+	struct exynos_drm_crtc		*crtc;
+	struct exynos_drm_plane		planes[WINDOWS_NR];
+	struct clk			*bus_clk;
+	struct clk			*lcd_clk;
+	void __iomem			*regs;
+	struct regmap			*sysreg;
+	unsigned int			default_win;
+	unsigned long			irq_flags;
+	u32				vidcon0;
+	u32				vidcon1;
+	u32				vidout_con;
+	u32				i80ifcon;
+	bool				i80_if;
+	bool				suspended;
+	int				pipe;
+	wait_queue_head_t		wait_vsync_queue;
+	atomic_t			wait_vsync_event;
+	atomic_t			win_updated;
+	atomic_t			triggering;
+
+	struct exynos_drm_panel_info panel;
+	struct fimd_driver_data *driver_data;
+	struct exynos_drm_display *display;
+};
+
+static const struct of_device_id fimd_driver_dt_match[] = {
+	{ .compatible = "samsung,s3c6400-fimd",
+	  .data = &s3c64xx_fimd_driver_data },
+	{ .compatible = "samsung,exynos3250-fimd",
+	  .data = &exynos3_fimd_driver_data },
+	{ .compatible = "samsung,exynos4210-fimd",
+	  .data = &exynos4_fimd_driver_data },
+	{ .compatible = "samsung,exynos4415-fimd",
+	  .data = &exynos4415_fimd_driver_data },
+	{ .compatible = "samsung,exynos5250-fimd",
+	  .data = &exynos5_fimd_driver_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, fimd_driver_dt_match);
+
+static inline struct fimd_driver_data *drm_fimd_get_driver_data(
+	struct platform_device *pdev)
+{
+	const struct of_device_id *of_id =
+			of_match_device(fimd_driver_dt_match, &pdev->dev);
+
+	return (struct fimd_driver_data *)of_id->data;
+}
+
+static void fimd_wait_for_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct fimd_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	atomic_set(&ctx->wait_vsync_event, 1);
+
+	/*
+	 * wait for FIMD to signal VSYNC interrupt or return after
+	 * timeout which is set to 50ms (refresh rate of 20).
+	 */
+	if (!wait_event_timeout(ctx->wait_vsync_queue,
+				!atomic_read(&ctx->wait_vsync_event),
+				HZ/20))
+		DRM_DEBUG_KMS("vblank wait timed out.\n");
+}
+
+static void fimd_enable_video_output(struct fimd_context *ctx, unsigned int win,
+					bool enable)
+{
+	u32 val = readl(ctx->regs + WINCON(win));
+
+	if (enable)
+		val |= WINCONx_ENWIN;
+	else
+		val &= ~WINCONx_ENWIN;
+
+	writel(val, ctx->regs + WINCON(win));
+}
+
+static void fimd_enable_shadow_channel_path(struct fimd_context *ctx,
+						unsigned int win,
+						bool enable)
+{
+	u32 val = readl(ctx->regs + SHADOWCON);
+
+	if (enable)
+		val |= SHADOWCON_CHx_ENABLE(win);
+	else
+		val &= ~SHADOWCON_CHx_ENABLE(win);
+
+	writel(val, ctx->regs + SHADOWCON);
+}
+
+static void fimd_clear_channel(struct fimd_context *ctx)
+{
+	unsigned int win, ch_enabled = 0;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	/* Check if any channel is enabled. */
+	for (win = 0; win < WINDOWS_NR; win++) {
+		u32 val = readl(ctx->regs + WINCON(win));
+
+		if (val & WINCONx_ENWIN) {
+			fimd_enable_video_output(ctx, win, false);
+
+			if (ctx->driver_data->has_shadowcon)
+				fimd_enable_shadow_channel_path(ctx, win,
+								false);
+
+			ch_enabled = 1;
+		}
+	}
+
+	/* Wait for vsync, as disable channel takes effect at next vsync */
+	if (ch_enabled) {
+		unsigned int state = ctx->suspended;
+
+		ctx->suspended = 0;
+		fimd_wait_for_vblank(ctx->crtc);
+		ctx->suspended = state;
+	}
+}
+
+static int fimd_iommu_attach_devices(struct fimd_context *ctx,
+			struct drm_device *drm_dev)
+{
+
+	/* attach this sub driver to iommu mapping if supported. */
+	if (is_drm_iommu_supported(ctx->drm_dev)) {
+		int ret;
+
+		/*
+		 * If any channel is already active, iommu will throw
+		 * a PAGE FAULT when enabled. So clear any channel if enabled.
+		 */
+		fimd_clear_channel(ctx);
+		ret = drm_iommu_attach_device(ctx->drm_dev, ctx->dev);
+		if (ret) {
+			DRM_ERROR("drm_iommu_attach failed.\n");
+			return ret;
+		}
+
+	}
+
+	return 0;
+}
+
+static void fimd_iommu_detach_devices(struct fimd_context *ctx)
+{
+	/* detach this sub driver from iommu mapping if supported. */
+	if (is_drm_iommu_supported(ctx->drm_dev))
+		drm_iommu_detach_device(ctx->drm_dev, ctx->dev);
+}
+
+static u32 fimd_calc_clkdiv(struct fimd_context *ctx,
+		const struct drm_display_mode *mode)
+{
+	unsigned long ideal_clk = mode->htotal * mode->vtotal * mode->vrefresh;
+	u32 clkdiv;
+
+	if (ctx->i80_if) {
+		/*
+		 * The frame done interrupt should be occurred prior to the
+		 * next TE signal.
+		 */
+		ideal_clk *= 2;
+	}
+
+	/* Find the clock divider value that gets us closest to ideal_clk */
+	clkdiv = DIV_ROUND_UP(clk_get_rate(ctx->lcd_clk), ideal_clk);
+
+	return (clkdiv < 0x100) ? clkdiv : 0xff;
+}
+
+static bool fimd_mode_fixup(struct exynos_drm_crtc *crtc,
+		const struct drm_display_mode *mode,
+		struct drm_display_mode *adjusted_mode)
+{
+	if (adjusted_mode->vrefresh == 0)
+		adjusted_mode->vrefresh = FIMD_DEFAULT_FRAMERATE;
+
+	return true;
+}
+
+static void fimd_commit(struct exynos_drm_crtc *crtc)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	struct drm_display_mode *mode = &crtc->base.mode;
+	struct fimd_driver_data *driver_data = ctx->driver_data;
+	void *timing_base = ctx->regs + driver_data->timing_base;
+	u32 val, clkdiv;
+
+	if (ctx->suspended)
+		return;
+
+	/* nothing to do if we haven't set the mode yet */
+	if (mode->htotal == 0 || mode->vtotal == 0)
+		return;
+
+	if (ctx->i80_if) {
+		val = ctx->i80ifcon | I80IFEN_ENABLE;
+		writel(val, timing_base + I80IFCONFAx(0));
+
+		/* disable auto frame rate */
+		writel(0, timing_base + I80IFCONFBx(0));
+
+		/* set video type selection to I80 interface */
+		if (driver_data->has_vtsel && ctx->sysreg &&
+				regmap_update_bits(ctx->sysreg,
+					driver_data->lcdblk_offset,
+					0x3 << driver_data->lcdblk_vt_shift,
+					0x1 << driver_data->lcdblk_vt_shift)) {
+			DRM_ERROR("Failed to update sysreg for I80 i/f.\n");
+			return;
+		}
+	} else {
+		int vsync_len, vbpd, vfpd, hsync_len, hbpd, hfpd;
+		u32 vidcon1;
+
+		/* setup polarity values */
+		vidcon1 = ctx->vidcon1;
+		if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+			vidcon1 |= VIDCON1_INV_VSYNC;
+		if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+			vidcon1 |= VIDCON1_INV_HSYNC;
+		writel(vidcon1, ctx->regs + driver_data->timing_base + VIDCON1);
+
+		/* setup vertical timing values. */
+		vsync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
+		vbpd = mode->crtc_vtotal - mode->crtc_vsync_end;
+		vfpd = mode->crtc_vsync_start - mode->crtc_vdisplay;
+
+		val = VIDTCON0_VBPD(vbpd - 1) |
+			VIDTCON0_VFPD(vfpd - 1) |
+			VIDTCON0_VSPW(vsync_len - 1);
+		writel(val, ctx->regs + driver_data->timing_base + VIDTCON0);
+
+		/* setup horizontal timing values.  */
+		hsync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
+		hbpd = mode->crtc_htotal - mode->crtc_hsync_end;
+		hfpd = mode->crtc_hsync_start - mode->crtc_hdisplay;
+
+		val = VIDTCON1_HBPD(hbpd - 1) |
+			VIDTCON1_HFPD(hfpd - 1) |
+			VIDTCON1_HSPW(hsync_len - 1);
+		writel(val, ctx->regs + driver_data->timing_base + VIDTCON1);
+	}
+
+	if (driver_data->has_vidoutcon)
+		writel(ctx->vidout_con, timing_base + VIDOUT_CON);
+
+	/* set bypass selection */
+	if (ctx->sysreg && regmap_update_bits(ctx->sysreg,
+				driver_data->lcdblk_offset,
+				0x1 << driver_data->lcdblk_bypass_shift,
+				0x1 << driver_data->lcdblk_bypass_shift)) {
+		DRM_ERROR("Failed to update sysreg for bypass setting.\n");
+		return;
+	}
+
+	/* setup horizontal and vertical display size. */
+	val = VIDTCON2_LINEVAL(mode->vdisplay - 1) |
+	       VIDTCON2_HOZVAL(mode->hdisplay - 1) |
+	       VIDTCON2_LINEVAL_E(mode->vdisplay - 1) |
+	       VIDTCON2_HOZVAL_E(mode->hdisplay - 1);
+	writel(val, ctx->regs + driver_data->timing_base + VIDTCON2);
+
+	/*
+	 * fields of register with prefix '_F' would be updated
+	 * at vsync(same as dma start)
+	 */
+	val = ctx->vidcon0;
+	val |= VIDCON0_ENVID | VIDCON0_ENVID_F;
+
+	if (ctx->driver_data->has_clksel)
+		val |= VIDCON0_CLKSEL_LCD;
+
+	clkdiv = fimd_calc_clkdiv(ctx, mode);
+	if (clkdiv > 1)
+		val |= VIDCON0_CLKVAL_F(clkdiv - 1) | VIDCON0_CLKDIR;
+
+	writel(val, ctx->regs + VIDCON0);
+}
+
+static int fimd_enable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	u32 val;
+
+	if (ctx->suspended)
+		return -EPERM;
+
+	if (!test_and_set_bit(0, &ctx->irq_flags)) {
+		val = readl(ctx->regs + VIDINTCON0);
+
+		val |= VIDINTCON0_INT_ENABLE;
+
+		if (ctx->i80_if) {
+			val |= VIDINTCON0_INT_I80IFDONE;
+			val |= VIDINTCON0_INT_SYSMAINCON;
+			val &= ~VIDINTCON0_INT_SYSSUBCON;
+		} else {
+			val |= VIDINTCON0_INT_FRAME;
+
+			val &= ~VIDINTCON0_FRAMESEL0_MASK;
+			val |= VIDINTCON0_FRAMESEL0_VSYNC;
+			val &= ~VIDINTCON0_FRAMESEL1_MASK;
+			val |= VIDINTCON0_FRAMESEL1_NONE;
+		}
+
+		writel(val, ctx->regs + VIDINTCON0);
+	}
+
+	return 0;
+}
+
+static void fimd_disable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	u32 val;
+
+	if (ctx->suspended)
+		return;
+
+	if (test_and_clear_bit(0, &ctx->irq_flags)) {
+		val = readl(ctx->regs + VIDINTCON0);
+
+		val &= ~VIDINTCON0_INT_ENABLE;
+
+		if (ctx->i80_if) {
+			val &= ~VIDINTCON0_INT_I80IFDONE;
+			val &= ~VIDINTCON0_INT_SYSMAINCON;
+			val &= ~VIDINTCON0_INT_SYSSUBCON;
+		} else
+			val &= ~VIDINTCON0_INT_FRAME;
+
+		writel(val, ctx->regs + VIDINTCON0);
+	}
+}
+
+static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win)
+{
+	struct exynos_drm_plane *plane = &ctx->planes[win];
+	unsigned long val;
+
+	val = WINCONx_ENWIN;
+
+	/*
+	 * In case of s3c64xx, window 0 doesn't support alpha channel.
+	 * So the request format is ARGB8888 then change it to XRGB8888.
+	 */
+	if (ctx->driver_data->has_limited_fmt && !win) {
+		if (plane->pixel_format == DRM_FORMAT_ARGB8888)
+			plane->pixel_format = DRM_FORMAT_XRGB8888;
+	}
+
+	switch (plane->pixel_format) {
+	case DRM_FORMAT_C8:
+		val |= WINCON0_BPPMODE_8BPP_PALETTE;
+		val |= WINCONx_BURSTLEN_8WORD;
+		val |= WINCONx_BYTSWP;
+		break;
+	case DRM_FORMAT_XRGB1555:
+		val |= WINCON0_BPPMODE_16BPP_1555;
+		val |= WINCONx_HAWSWP;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_RGB565:
+		val |= WINCON0_BPPMODE_16BPP_565;
+		val |= WINCONx_HAWSWP;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		val |= WINCON0_BPPMODE_24BPP_888;
+		val |= WINCONx_WSWP;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	case DRM_FORMAT_ARGB8888:
+		val |= WINCON1_BPPMODE_25BPP_A1888
+			| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
+		val |= WINCONx_WSWP;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	default:
+		DRM_DEBUG_KMS("invalid pixel size so using unpacked 24bpp.\n");
+
+		val |= WINCON0_BPPMODE_24BPP_888;
+		val |= WINCONx_WSWP;
+		val |= WINCONx_BURSTLEN_16WORD;
+		break;
+	}
+
+	DRM_DEBUG_KMS("bpp = %d\n", plane->bpp);
+
+	/*
+	 * In case of exynos, setting dma-burst to 16Word causes permanent
+	 * tearing for very small buffers, e.g. cursor buffer. Burst Mode
+	 * switching which is based on plane size is not recommended as
+	 * plane size varies alot towards the end of the screen and rapid
+	 * movement causes unstable DMA which results into iommu crash/tear.
+	 */
+
+	if (plane->fb_width < MIN_FB_WIDTH_FOR_16WORD_BURST) {
+		val &= ~WINCONx_BURSTLEN_MASK;
+		val |= WINCONx_BURSTLEN_4WORD;
+	}
+
+	writel(val, ctx->regs + WINCON(win));
+
+	/* hardware window 0 doesn't support alpha channel. */
+	if (win != 0) {
+		/* OSD alpha */
+		val = VIDISD14C_ALPHA0_R(0xf) |
+			VIDISD14C_ALPHA0_G(0xf) |
+			VIDISD14C_ALPHA0_B(0xf) |
+			VIDISD14C_ALPHA1_R(0xf) |
+			VIDISD14C_ALPHA1_G(0xf) |
+			VIDISD14C_ALPHA1_B(0xf);
+
+		writel(val, ctx->regs + VIDOSD_C(win));
+
+		val = VIDW_ALPHA_R(0xf) | VIDW_ALPHA_G(0xf) |
+			VIDW_ALPHA_G(0xf);
+		writel(val, ctx->regs + VIDWnALPHA0(win));
+		writel(val, ctx->regs + VIDWnALPHA1(win));
+	}
+}
+
+static void fimd_win_set_colkey(struct fimd_context *ctx, unsigned int win)
+{
+	unsigned int keycon0 = 0, keycon1 = 0;
+
+	keycon0 = ~(WxKEYCON0_KEYBL_EN | WxKEYCON0_KEYEN_F |
+			WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
+
+	keycon1 = WxKEYCON1_COLVAL(0xffffffff);
+
+	writel(keycon0, ctx->regs + WKEYCON0_BASE(win));
+	writel(keycon1, ctx->regs + WKEYCON1_BASE(win));
+}
+
+/**
+ * shadow_protect_win() - disable updating values from shadow registers at vsync
+ *
+ * @win: window to protect registers for
+ * @protect: 1 to protect (disable updates)
+ */
+static void fimd_shadow_protect_win(struct fimd_context *ctx,
+				    unsigned int win, bool protect)
+{
+	u32 reg, bits, val;
+
+	if (ctx->driver_data->has_shadowcon) {
+		reg = SHADOWCON;
+		bits = SHADOWCON_WINx_PROTECT(win);
+	} else {
+		reg = PRTCON;
+		bits = PRTCON_PROTECT;
+	}
+
+	val = readl(ctx->regs + reg);
+	if (protect)
+		val |= bits;
+	else
+		val &= ~bits;
+	writel(val, ctx->regs + reg);
+}
+
+static void fimd_win_commit(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+	dma_addr_t dma_addr;
+	unsigned long val, size, offset;
+	unsigned int last_x, last_y, buf_offsize, line_size;
+
+	if (ctx->suspended)
+		return;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+
+	/* If suspended, enable this on resume */
+	if (ctx->suspended) {
+		plane->resume = true;
+		return;
+	}
+
+	/*
+	 * SHADOWCON/PRTCON register is used for enabling timing.
+	 *
+	 * for example, once only width value of a register is set,
+	 * if the dma is started then fimd hardware could malfunction so
+	 * with protect window setting, the register fields with prefix '_F'
+	 * wouldn't be updated at vsync also but updated once unprotect window
+	 * is set.
+	 */
+
+	/* protect windows */
+	fimd_shadow_protect_win(ctx, win, true);
+
+
+	offset = plane->src_x * (plane->bpp >> 3);
+	offset += plane->src_y * plane->pitch;
+
+	/* buffer start address */
+	dma_addr = plane->dma_addr[0] + offset;
+	val = (unsigned long)dma_addr;
+	writel(val, ctx->regs + VIDWx_BUF_START(win, 0));
+
+	/* buffer end address */
+	size = plane->pitch * plane->crtc_height;
+	val = (unsigned long)(dma_addr + size);
+	writel(val, ctx->regs + VIDWx_BUF_END(win, 0));
+
+	DRM_DEBUG_KMS("start addr = 0x%lx, end addr = 0x%lx, size = 0x%lx\n",
+			(unsigned long)dma_addr, val, size);
+	DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
+			plane->crtc_width, plane->crtc_height);
+
+	/* buffer size */
+	buf_offsize = plane->pitch - (plane->crtc_width * (plane->bpp >> 3));
+	line_size = plane->crtc_width * (plane->bpp >> 3);
+	val = VIDW_BUF_SIZE_OFFSET(buf_offsize) |
+		VIDW_BUF_SIZE_PAGEWIDTH(line_size) |
+		VIDW_BUF_SIZE_OFFSET_E(buf_offsize) |
+		VIDW_BUF_SIZE_PAGEWIDTH_E(line_size);
+	writel(val, ctx->regs + VIDWx_BUF_SIZE(win, 0));
+
+	/* OSD position */
+	val = VIDOSDxA_TOPLEFT_X(plane->crtc_x) |
+		VIDOSDxA_TOPLEFT_Y(plane->crtc_y) |
+		VIDOSDxA_TOPLEFT_X_E(plane->crtc_x) |
+		VIDOSDxA_TOPLEFT_Y_E(plane->crtc_y);
+	writel(val, ctx->regs + VIDOSD_A(win));
+
+	last_x = plane->crtc_x + plane->crtc_width;
+	if (last_x)
+		last_x--;
+	last_y = plane->crtc_y + plane->crtc_height;
+	if (last_y)
+		last_y--;
+
+	val = VIDOSDxB_BOTRIGHT_X(last_x) | VIDOSDxB_BOTRIGHT_Y(last_y) |
+		VIDOSDxB_BOTRIGHT_X_E(last_x) | VIDOSDxB_BOTRIGHT_Y_E(last_y);
+
+	writel(val, ctx->regs + VIDOSD_B(win));
+
+	DRM_DEBUG_KMS("osd pos: tx = %d, ty = %d, bx = %d, by = %d\n",
+			plane->crtc_x, plane->crtc_y, last_x, last_y);
+
+	/* OSD size */
+	if (win != 3 && win != 4) {
+		u32 offset = VIDOSD_D(win);
+		if (win == 0)
+			offset = VIDOSD_C(win);
+		val = plane->crtc_width * plane->crtc_height;
+		writel(val, ctx->regs + offset);
+
+		DRM_DEBUG_KMS("osd size = 0x%x\n", (unsigned int)val);
+	}
+
+	fimd_win_set_pixfmt(ctx, win);
+
+	/* hardware window 0 doesn't support color key. */
+	if (win != 0)
+		fimd_win_set_colkey(ctx, win);
+
+	fimd_enable_video_output(ctx, win, true);
+
+	if (ctx->driver_data->has_shadowcon)
+		fimd_enable_shadow_channel_path(ctx, win, true);
+
+	/* Enable DMA channel and unprotect windows */
+	fimd_shadow_protect_win(ctx, win, false);
+
+	plane->enabled = true;
+
+	if (ctx->i80_if)
+		atomic_set(&ctx->win_updated, 1);
+}
+
+static void fimd_win_disable(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+
+	if (ctx->suspended) {
+		/* do not resume this window*/
+		plane->resume = false;
+		return;
+	}
+
+	/* protect windows */
+	fimd_shadow_protect_win(ctx, win, true);
+
+	fimd_enable_video_output(ctx, win, false);
+
+	if (ctx->driver_data->has_shadowcon)
+		fimd_enable_shadow_channel_path(ctx, win, false);
+
+	/* unprotect windows */
+	fimd_shadow_protect_win(ctx, win, false);
+
+	plane->enabled = false;
+}
+
+static void fimd_window_suspend(struct fimd_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->resume = plane->enabled;
+		if (plane->enabled)
+			fimd_win_disable(ctx->crtc, i);
+	}
+}
+
+static void fimd_window_resume(struct fimd_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->enabled = plane->resume;
+		plane->resume = false;
+	}
+}
+
+static void fimd_apply(struct fimd_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		plane = &ctx->planes[i];
+		if (plane->enabled)
+			fimd_win_commit(ctx->crtc, i);
+		else
+			fimd_win_disable(ctx->crtc, i);
+	}
+
+	fimd_commit(ctx->crtc);
+}
+
+static int fimd_poweron(struct fimd_context *ctx)
+{
+	int ret;
+
+	if (!ctx->suspended)
+		return 0;
+
+	ctx->suspended = false;
+
+	pm_runtime_get_sync(ctx->dev);
+
+	ret = clk_prepare_enable(ctx->bus_clk);
+	if (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the bus clk [%d]\n", ret);
+		goto bus_clk_err;
+	}
+
+	ret = clk_prepare_enable(ctx->lcd_clk);
+	if  (ret < 0) {
+		DRM_ERROR("Failed to prepare_enable the lcd clk [%d]\n", ret);
+		goto lcd_clk_err;
+	}
+
+	/* if vblank was enabled status, enable it again. */
+	if (test_and_clear_bit(0, &ctx->irq_flags)) {
+		ret = fimd_enable_vblank(ctx->crtc);
+		if (ret) {
+			DRM_ERROR("Failed to re-enable vblank [%d]\n", ret);
+			goto enable_vblank_err;
+		}
+	}
+
+	fimd_window_resume(ctx);
+
+	fimd_apply(ctx);
+
+	return 0;
+
+enable_vblank_err:
+	clk_disable_unprepare(ctx->lcd_clk);
+lcd_clk_err:
+	clk_disable_unprepare(ctx->bus_clk);
+bus_clk_err:
+	ctx->suspended = true;
+	return ret;
+}
+
+static int fimd_poweroff(struct fimd_context *ctx)
+{
+	if (ctx->suspended)
+		return 0;
+
+	/*
+	 * We need to make sure that all windows are disabled before we
+	 * suspend that connector. Otherwise we might try to scan from
+	 * a destroyed buffer later.
+	 */
+	fimd_window_suspend(ctx);
+
+	clk_disable_unprepare(ctx->lcd_clk);
+	clk_disable_unprepare(ctx->bus_clk);
+
+	pm_runtime_put_sync(ctx->dev);
+
+	ctx->suspended = true;
+	return 0;
+}
+
+static void fimd_dpms(struct exynos_drm_crtc *crtc, int mode)
+{
+	DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		fimd_poweron(crtc->ctx);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		fimd_poweroff(crtc->ctx);
+		break;
+	default:
+		DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+		break;
+	}
+}
+
+static void fimd_trigger(struct device *dev)
+{
+	struct fimd_context *ctx = dev_get_drvdata(dev);
+	struct fimd_driver_data *driver_data = ctx->driver_data;
+	void *timing_base = ctx->regs + driver_data->timing_base;
+	u32 reg;
+
+	 /*
+	  * Skips triggering if in triggering state, because multiple triggering
+	  * requests can cause panel reset.
+	  */
+	if (atomic_read(&ctx->triggering))
+		return;
+
+	/* Enters triggering mode */
+	atomic_set(&ctx->triggering, 1);
+
+	reg = readl(timing_base + TRIGCON);
+	reg |= (TRGMODE_I80_RGB_ENABLE_I80 | SWTRGCMD_I80_RGB_ENABLE);
+	writel(reg, timing_base + TRIGCON);
+
+	/*
+	 * Exits triggering mode if vblank is not enabled yet, because when the
+	 * VIDINTCON0 register is not set, it can not exit from triggering mode.
+	 */
+	if (!test_bit(0, &ctx->irq_flags))
+		atomic_set(&ctx->triggering, 0);
+}
+
+static void fimd_te_handler(struct exynos_drm_crtc *crtc)
+{
+	struct fimd_context *ctx = crtc->ctx;
+
+	/* Checks the crtc is detached already from encoder */
+	if (ctx->pipe < 0 || !ctx->drm_dev)
+		return;
+
+	/*
+	 * If there is a page flip request, triggers and handles the page flip
+	 * event so that current fb can be updated into panel GRAM.
+	 */
+	if (atomic_add_unless(&ctx->win_updated, -1, 0))
+		fimd_trigger(ctx->dev);
+
+	/* Wakes up vsync event queue */
+	if (atomic_read(&ctx->wait_vsync_event)) {
+		atomic_set(&ctx->wait_vsync_event, 0);
+		wake_up(&ctx->wait_vsync_queue);
+	}
+
+	if (test_bit(0, &ctx->irq_flags))
+		drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+}
+
+static void fimd_dp_clock_enable(struct exynos_drm_crtc *crtc, bool enable)
+{
+	struct fimd_context *ctx = crtc->ctx;
+	u32 val;
+
+	/*
+	 * Only Exynos 5250, 5260, 5410 and 542x requires enabling DP/MIE
+	 * clock. On these SoCs the bootloader may enable it but any
+	 * power domain off/on will reset it to disable state.
+	 */
+	if (ctx->driver_data != &exynos5_fimd_driver_data)
+		return;
+
+	val = enable ? DP_MIE_CLK_DP_ENABLE : DP_MIE_CLK_DISABLE;
+	writel(DP_MIE_CLK_DP_ENABLE, ctx->regs + DP_MIE_CLKCON);
+}
+
+static const struct exynos_drm_crtc_ops fimd_crtc_ops = {
+	.dpms = fimd_dpms,
+	.mode_fixup = fimd_mode_fixup,
+	.commit = fimd_commit,
+	.enable_vblank = fimd_enable_vblank,
+	.disable_vblank = fimd_disable_vblank,
+	.wait_for_vblank = fimd_wait_for_vblank,
+	.win_commit = fimd_win_commit,
+	.win_disable = fimd_win_disable,
+	.te_handler = fimd_te_handler,
+	.clock_enable = fimd_dp_clock_enable,
+};
+
+static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
+{
+	struct fimd_context *ctx = (struct fimd_context *)dev_id;
+	u32 val, clear_bit;
+
+	val = readl(ctx->regs + VIDINTCON1);
+
+	clear_bit = ctx->i80_if ? VIDINTCON1_INT_I80 : VIDINTCON1_INT_FRAME;
+	if (val & clear_bit)
+		writel(clear_bit, ctx->regs + VIDINTCON1);
+
+	/* check the crtc is detached already from encoder */
+	if (ctx->pipe < 0 || !ctx->drm_dev)
+		goto out;
+
+	if (ctx->i80_if) {
+		exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
+
+		/* Exits triggering mode */
+		atomic_set(&ctx->triggering, 0);
+	} else {
+		drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+		exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
+
+		/* set wait vsync event to zero and wake up queue. */
+		if (atomic_read(&ctx->wait_vsync_event)) {
+			atomic_set(&ctx->wait_vsync_event, 0);
+			wake_up(&ctx->wait_vsync_queue);
+		}
+	}
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int fimd_bind(struct device *dev, struct device *master, void *data)
+{
+	struct fimd_context *ctx = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	unsigned int zpos;
+	int ret;
+
+	ctx->drm_dev = drm_dev;
+	ctx->pipe = priv->pipe++;
+
+	for (zpos = 0; zpos < WINDOWS_NR; zpos++) {
+		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
+					1 << ctx->pipe, type, zpos);
+		if (ret)
+			return ret;
+	}
+
+	exynos_plane = &ctx->planes[ctx->default_win];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD,
+					   &fimd_crtc_ops, ctx);
+	if (IS_ERR(ctx->crtc))
+		return PTR_ERR(ctx->crtc);
+
+	if (ctx->display)
+		exynos_drm_create_enc_conn(drm_dev, ctx->display);
+
+	return fimd_iommu_attach_devices(ctx, drm_dev);
+}
+
+static void fimd_unbind(struct device *dev, struct device *master,
+			void *data)
+{
+	struct fimd_context *ctx = dev_get_drvdata(dev);
+
+	fimd_dpms(ctx->crtc, DRM_MODE_DPMS_OFF);
+
+	fimd_iommu_detach_devices(ctx);
+
+	if (ctx->display)
+		exynos_dpi_remove(ctx->display);
+}
+
+static const struct component_ops fimd_component_ops = {
+	.bind	= fimd_bind,
+	.unbind = fimd_unbind,
+};
+
+static int fimd_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fimd_context *ctx;
+	struct device_node *i80_if_timings;
+	struct resource *res;
+	int ret;
+
+	if (!dev->of_node)
+		return -ENODEV;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ret = exynos_drm_component_add(dev, EXYNOS_DEVICE_TYPE_CRTC,
+				       EXYNOS_DISPLAY_TYPE_LCD);
+	if (ret)
+		return ret;
+
+	ctx->dev = dev;
+	ctx->suspended = true;
+	ctx->driver_data = drm_fimd_get_driver_data(pdev);
+
+	if (of_property_read_bool(dev->of_node, "samsung,invert-vden"))
+		ctx->vidcon1 |= VIDCON1_INV_VDEN;
+	if (of_property_read_bool(dev->of_node, "samsung,invert-vclk"))
+		ctx->vidcon1 |= VIDCON1_INV_VCLK;
+
+	i80_if_timings = of_get_child_by_name(dev->of_node, "i80-if-timings");
+	if (i80_if_timings) {
+		u32 val;
+
+		ctx->i80_if = true;
+
+		if (ctx->driver_data->has_vidoutcon)
+			ctx->vidout_con |= VIDOUT_CON_F_I80_LDI0;
+		else
+			ctx->vidcon0 |= VIDCON0_VIDOUT_I80_LDI0;
+		/*
+		 * The user manual describes that this "DSI_EN" bit is required
+		 * to enable I80 24-bit data interface.
+		 */
+		ctx->vidcon0 |= VIDCON0_DSI_EN;
+
+		if (of_property_read_u32(i80_if_timings, "cs-setup", &val))
+			val = 0;
+		ctx->i80ifcon = LCD_CS_SETUP(val);
+		if (of_property_read_u32(i80_if_timings, "wr-setup", &val))
+			val = 0;
+		ctx->i80ifcon |= LCD_WR_SETUP(val);
+		if (of_property_read_u32(i80_if_timings, "wr-active", &val))
+			val = 1;
+		ctx->i80ifcon |= LCD_WR_ACTIVE(val);
+		if (of_property_read_u32(i80_if_timings, "wr-hold", &val))
+			val = 0;
+		ctx->i80ifcon |= LCD_WR_HOLD(val);
+	}
+	of_node_put(i80_if_timings);
+
+	ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
+							"samsung,sysreg");
+	if (IS_ERR(ctx->sysreg)) {
+		dev_warn(dev, "failed to get system register.\n");
+		ctx->sysreg = NULL;
+	}
+
+	ctx->bus_clk = devm_clk_get(dev, "fimd");
+	if (IS_ERR(ctx->bus_clk)) {
+		dev_err(dev, "failed to get bus clock\n");
+		ret = PTR_ERR(ctx->bus_clk);
+		goto err_del_component;
+	}
+
+	ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd");
+	if (IS_ERR(ctx->lcd_clk)) {
+		dev_err(dev, "failed to get lcd clock\n");
+		ret = PTR_ERR(ctx->lcd_clk);
+		goto err_del_component;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	ctx->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ctx->regs)) {
+		ret = PTR_ERR(ctx->regs);
+		goto err_del_component;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   ctx->i80_if ? "lcd_sys" : "vsync");
+	if (!res) {
+		dev_err(dev, "irq request failed.\n");
+		ret = -ENXIO;
+		goto err_del_component;
+	}
+
+	ret = devm_request_irq(dev, res->start, fimd_irq_handler,
+							0, "drm_fimd", ctx);
+	if (ret) {
+		dev_err(dev, "irq request failed.\n");
+		goto err_del_component;
+	}
+
+	init_waitqueue_head(&ctx->wait_vsync_queue);
+	atomic_set(&ctx->wait_vsync_event, 0);
+
+	platform_set_drvdata(pdev, ctx);
+
+	ctx->display = exynos_dpi_probe(dev);
+	if (IS_ERR(ctx->display)) {
+		ret = PTR_ERR(ctx->display);
+		goto err_del_component;
+	}
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &fimd_component_ops);
+	if (ret)
+		goto err_disable_pm_runtime;
+
+	return ret;
+
+err_disable_pm_runtime:
+	pm_runtime_disable(dev);
+
+err_del_component:
+	exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CRTC);
+	return ret;
+}
+
+static int fimd_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	component_del(&pdev->dev, &fimd_component_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+
+	return 0;
+}
+
+struct platform_driver fimd_driver = {
+	.probe		= fimd_probe,
+	.remove		= fimd_remove,
+	.driver		= {
+		.name	= "exynos4-fb",
+		.owner	= THIS_MODULE,
+		.of_match_table = fimd_driver_dt_match,
+	},
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.c
new file mode 100644
index 000000000..81a250830
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -0,0 +1,1587 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/dma-mapping.h>
+#include <linux/dma-attrs.h>
+#include <linux/of.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "exynos_drm_drv.h"
+#include "exynos_drm_g2d.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_iommu.h"
+
+#define G2D_HW_MAJOR_VER		4
+#define G2D_HW_MINOR_VER		1
+
+/* vaild register range set from user: 0x0104 ~ 0x0880 */
+#define G2D_VALID_START			0x0104
+#define G2D_VALID_END			0x0880
+
+/* general registers */
+#define G2D_SOFT_RESET			0x0000
+#define G2D_INTEN			0x0004
+#define G2D_INTC_PEND			0x000C
+#define G2D_DMA_SFR_BASE_ADDR		0x0080
+#define G2D_DMA_COMMAND			0x0084
+#define G2D_DMA_STATUS			0x008C
+#define G2D_DMA_HOLD_CMD		0x0090
+
+/* command registers */
+#define G2D_BITBLT_START		0x0100
+
+/* registers for base address */
+#define G2D_SRC_BASE_ADDR		0x0304
+#define G2D_SRC_COLOR_MODE		0x030C
+#define G2D_SRC_LEFT_TOP		0x0310
+#define G2D_SRC_RIGHT_BOTTOM		0x0314
+#define G2D_SRC_PLANE2_BASE_ADDR	0x0318
+#define G2D_DST_BASE_ADDR		0x0404
+#define G2D_DST_COLOR_MODE		0x040C
+#define G2D_DST_LEFT_TOP		0x0410
+#define G2D_DST_RIGHT_BOTTOM		0x0414
+#define G2D_DST_PLANE2_BASE_ADDR	0x0418
+#define G2D_PAT_BASE_ADDR		0x0500
+#define G2D_MSK_BASE_ADDR		0x0520
+
+/* G2D_SOFT_RESET */
+#define G2D_SFRCLEAR			(1 << 1)
+#define G2D_R				(1 << 0)
+
+/* G2D_INTEN */
+#define G2D_INTEN_ACF			(1 << 3)
+#define G2D_INTEN_UCF			(1 << 2)
+#define G2D_INTEN_GCF			(1 << 1)
+#define G2D_INTEN_SCF			(1 << 0)
+
+/* G2D_INTC_PEND */
+#define G2D_INTP_ACMD_FIN		(1 << 3)
+#define G2D_INTP_UCMD_FIN		(1 << 2)
+#define G2D_INTP_GCMD_FIN		(1 << 1)
+#define G2D_INTP_SCMD_FIN		(1 << 0)
+
+/* G2D_DMA_COMMAND */
+#define G2D_DMA_HALT			(1 << 2)
+#define G2D_DMA_CONTINUE		(1 << 1)
+#define G2D_DMA_START			(1 << 0)
+
+/* G2D_DMA_STATUS */
+#define G2D_DMA_LIST_DONE_COUNT		(0xFF << 17)
+#define G2D_DMA_BITBLT_DONE_COUNT	(0xFFFF << 1)
+#define G2D_DMA_DONE			(1 << 0)
+#define G2D_DMA_LIST_DONE_COUNT_OFFSET	17
+
+/* G2D_DMA_HOLD_CMD */
+#define G2D_USER_HOLD			(1 << 2)
+#define G2D_LIST_HOLD			(1 << 1)
+#define G2D_BITBLT_HOLD			(1 << 0)
+
+/* G2D_BITBLT_START */
+#define G2D_START_CASESEL		(1 << 2)
+#define G2D_START_NHOLT			(1 << 1)
+#define G2D_START_BITBLT		(1 << 0)
+
+/* buffer color format */
+#define G2D_FMT_XRGB8888		0
+#define G2D_FMT_ARGB8888		1
+#define G2D_FMT_RGB565			2
+#define G2D_FMT_XRGB1555		3
+#define G2D_FMT_ARGB1555		4
+#define G2D_FMT_XRGB4444		5
+#define G2D_FMT_ARGB4444		6
+#define G2D_FMT_PACKED_RGB888		7
+#define G2D_FMT_A8			11
+#define G2D_FMT_L8			12
+
+/* buffer valid length */
+#define G2D_LEN_MIN			1
+#define G2D_LEN_MAX			8000
+
+#define G2D_CMDLIST_SIZE		(PAGE_SIZE / 4)
+#define G2D_CMDLIST_NUM			64
+#define G2D_CMDLIST_POOL_SIZE		(G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM)
+#define G2D_CMDLIST_DATA_NUM		(G2D_CMDLIST_SIZE / sizeof(u32) - 2)
+
+/* maximum buffer pool size of userptr is 64MB as default */
+#define MAX_POOL		(64 * 1024 * 1024)
+
+enum {
+	BUF_TYPE_GEM = 1,
+	BUF_TYPE_USERPTR,
+};
+
+enum g2d_reg_type {
+	REG_TYPE_NONE = -1,
+	REG_TYPE_SRC,
+	REG_TYPE_SRC_PLANE2,
+	REG_TYPE_DST,
+	REG_TYPE_DST_PLANE2,
+	REG_TYPE_PAT,
+	REG_TYPE_MSK,
+	MAX_REG_TYPE_NR
+};
+
+/* cmdlist data structure */
+struct g2d_cmdlist {
+	u32		head;
+	unsigned long	data[G2D_CMDLIST_DATA_NUM];
+	u32		last;	/* last data offset */
+};
+
+/*
+ * A structure of buffer description
+ *
+ * @format: color format
+ * @left_x: the x coordinates of left top corner
+ * @top_y: the y coordinates of left top corner
+ * @right_x: the x coordinates of right bottom corner
+ * @bottom_y: the y coordinates of right bottom corner
+ *
+ */
+struct g2d_buf_desc {
+	unsigned int	format;
+	unsigned int	left_x;
+	unsigned int	top_y;
+	unsigned int	right_x;
+	unsigned int	bottom_y;
+};
+
+/*
+ * A structure of buffer information
+ *
+ * @map_nr: manages the number of mapped buffers
+ * @reg_types: stores regitster type in the order of requested command
+ * @handles: stores buffer handle in its reg_type position
+ * @types: stores buffer type in its reg_type position
+ * @descs: stores buffer description in its reg_type position
+ *
+ */
+struct g2d_buf_info {
+	unsigned int		map_nr;
+	enum g2d_reg_type	reg_types[MAX_REG_TYPE_NR];
+	unsigned long		handles[MAX_REG_TYPE_NR];
+	unsigned int		types[MAX_REG_TYPE_NR];
+	struct g2d_buf_desc	descs[MAX_REG_TYPE_NR];
+};
+
+struct drm_exynos_pending_g2d_event {
+	struct drm_pending_event	base;
+	struct drm_exynos_g2d_event	event;
+};
+
+struct g2d_cmdlist_userptr {
+	struct list_head	list;
+	dma_addr_t		dma_addr;
+	unsigned long		userptr;
+	unsigned long		size;
+	struct page		**pages;
+	unsigned int		npages;
+	struct sg_table		*sgt;
+	struct vm_area_struct	*vma;
+	atomic_t		refcount;
+	bool			in_pool;
+	bool			out_of_list;
+};
+struct g2d_cmdlist_node {
+	struct list_head	list;
+	struct g2d_cmdlist	*cmdlist;
+	dma_addr_t		dma_addr;
+	struct g2d_buf_info	buf_info;
+
+	struct drm_exynos_pending_g2d_event	*event;
+};
+
+struct g2d_runqueue_node {
+	struct list_head	list;
+	struct list_head	run_cmdlist;
+	struct list_head	event_list;
+	struct drm_file		*filp;
+	pid_t			pid;
+	struct completion	complete;
+	int			async;
+};
+
+struct g2d_data {
+	struct device			*dev;
+	struct clk			*gate_clk;
+	void __iomem			*regs;
+	int				irq;
+	struct workqueue_struct		*g2d_workq;
+	struct work_struct		runqueue_work;
+	struct exynos_drm_subdrv	subdrv;
+	bool				suspended;
+
+	/* cmdlist */
+	struct g2d_cmdlist_node		*cmdlist_node;
+	struct list_head		free_cmdlist;
+	struct mutex			cmdlist_mutex;
+	dma_addr_t			cmdlist_pool;
+	void				*cmdlist_pool_virt;
+	struct dma_attrs		cmdlist_dma_attrs;
+
+	/* runqueue*/
+	struct g2d_runqueue_node	*runqueue_node;
+	struct list_head		runqueue;
+	struct mutex			runqueue_mutex;
+	struct kmem_cache		*runqueue_slab;
+
+	unsigned long			current_pool;
+	unsigned long			max_pool;
+};
+
+static int g2d_init_cmdlist(struct g2d_data *g2d)
+{
+	struct device *dev = g2d->dev;
+	struct g2d_cmdlist_node *node = g2d->cmdlist_node;
+	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
+	int nr;
+	int ret;
+	struct g2d_buf_info *buf_info;
+
+	init_dma_attrs(&g2d->cmdlist_dma_attrs);
+	dma_set_attr(DMA_ATTR_WRITE_COMBINE, &g2d->cmdlist_dma_attrs);
+
+	g2d->cmdlist_pool_virt = dma_alloc_attrs(subdrv->drm_dev->dev,
+						G2D_CMDLIST_POOL_SIZE,
+						&g2d->cmdlist_pool, GFP_KERNEL,
+						&g2d->cmdlist_dma_attrs);
+	if (!g2d->cmdlist_pool_virt) {
+		dev_err(dev, "failed to allocate dma memory\n");
+		return -ENOMEM;
+	}
+
+	node = kcalloc(G2D_CMDLIST_NUM, sizeof(*node), GFP_KERNEL);
+	if (!node) {
+		dev_err(dev, "failed to allocate memory\n");
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	for (nr = 0; nr < G2D_CMDLIST_NUM; nr++) {
+		unsigned int i;
+
+		node[nr].cmdlist =
+			g2d->cmdlist_pool_virt + nr * G2D_CMDLIST_SIZE;
+		node[nr].dma_addr =
+			g2d->cmdlist_pool + nr * G2D_CMDLIST_SIZE;
+
+		buf_info = &node[nr].buf_info;
+		for (i = 0; i < MAX_REG_TYPE_NR; i++)
+			buf_info->reg_types[i] = REG_TYPE_NONE;
+
+		list_add_tail(&node[nr].list, &g2d->free_cmdlist);
+	}
+
+	return 0;
+
+err:
+	dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE,
+			g2d->cmdlist_pool_virt,
+			g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs);
+	return ret;
+}
+
+static void g2d_fini_cmdlist(struct g2d_data *g2d)
+{
+	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
+
+	kfree(g2d->cmdlist_node);
+
+	if (g2d->cmdlist_pool_virt && g2d->cmdlist_pool) {
+		dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE,
+				g2d->cmdlist_pool_virt,
+				g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs);
+	}
+}
+
+static struct g2d_cmdlist_node *g2d_get_cmdlist(struct g2d_data *g2d)
+{
+	struct device *dev = g2d->dev;
+	struct g2d_cmdlist_node *node;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	if (list_empty(&g2d->free_cmdlist)) {
+		dev_err(dev, "there is no free cmdlist\n");
+		mutex_unlock(&g2d->cmdlist_mutex);
+		return NULL;
+	}
+
+	node = list_first_entry(&g2d->free_cmdlist, struct g2d_cmdlist_node,
+				list);
+	list_del_init(&node->list);
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	return node;
+}
+
+static void g2d_put_cmdlist(struct g2d_data *g2d, struct g2d_cmdlist_node *node)
+{
+	mutex_lock(&g2d->cmdlist_mutex);
+	list_move_tail(&node->list, &g2d->free_cmdlist);
+	mutex_unlock(&g2d->cmdlist_mutex);
+}
+
+static void g2d_add_cmdlist_to_inuse(struct exynos_drm_g2d_private *g2d_priv,
+				     struct g2d_cmdlist_node *node)
+{
+	struct g2d_cmdlist_node *lnode;
+
+	if (list_empty(&g2d_priv->inuse_cmdlist))
+		goto add_to_list;
+
+	/* this links to base address of new cmdlist */
+	lnode = list_entry(g2d_priv->inuse_cmdlist.prev,
+				struct g2d_cmdlist_node, list);
+	lnode->cmdlist->data[lnode->cmdlist->last] = node->dma_addr;
+
+add_to_list:
+	list_add_tail(&node->list, &g2d_priv->inuse_cmdlist);
+
+	if (node->event)
+		list_add_tail(&node->event->base.link, &g2d_priv->event_list);
+}
+
+static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
+					unsigned long obj,
+					bool force)
+{
+	struct g2d_cmdlist_userptr *g2d_userptr =
+					(struct g2d_cmdlist_userptr *)obj;
+
+	if (!obj)
+		return;
+
+	if (force)
+		goto out;
+
+	atomic_dec(&g2d_userptr->refcount);
+
+	if (atomic_read(&g2d_userptr->refcount) > 0)
+		return;
+
+	if (g2d_userptr->in_pool)
+		return;
+
+out:
+	exynos_gem_unmap_sgt_from_dma(drm_dev, g2d_userptr->sgt,
+					DMA_BIDIRECTIONAL);
+
+	exynos_gem_put_pages_to_userptr(g2d_userptr->pages,
+					g2d_userptr->npages,
+					g2d_userptr->vma);
+
+	exynos_gem_put_vma(g2d_userptr->vma);
+
+	if (!g2d_userptr->out_of_list)
+		list_del_init(&g2d_userptr->list);
+
+	sg_free_table(g2d_userptr->sgt);
+	kfree(g2d_userptr->sgt);
+
+	drm_free_large(g2d_userptr->pages);
+	kfree(g2d_userptr);
+}
+
+static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
+					unsigned long userptr,
+					unsigned long size,
+					struct drm_file *filp,
+					unsigned long *obj)
+{
+	struct drm_exynos_file_private *file_priv = filp->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct g2d_cmdlist_userptr *g2d_userptr;
+	struct g2d_data *g2d;
+	struct page **pages;
+	struct sg_table	*sgt;
+	struct vm_area_struct *vma;
+	unsigned long start, end;
+	unsigned int npages, offset;
+	int ret;
+
+	if (!size) {
+		DRM_ERROR("invalid userptr size.\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	g2d = dev_get_drvdata(g2d_priv->dev);
+
+	/* check if userptr already exists in userptr_list. */
+	list_for_each_entry(g2d_userptr, &g2d_priv->userptr_list, list) {
+		if (g2d_userptr->userptr == userptr) {
+			/*
+			 * also check size because there could be same address
+			 * and different size.
+			 */
+			if (g2d_userptr->size == size) {
+				atomic_inc(&g2d_userptr->refcount);
+				*obj = (unsigned long)g2d_userptr;
+
+				return &g2d_userptr->dma_addr;
+			}
+
+			/*
+			 * at this moment, maybe g2d dma is accessing this
+			 * g2d_userptr memory region so just remove this
+			 * g2d_userptr object from userptr_list not to be
+			 * referred again and also except it the userptr
+			 * pool to be released after the dma access completion.
+			 */
+			g2d_userptr->out_of_list = true;
+			g2d_userptr->in_pool = false;
+			list_del_init(&g2d_userptr->list);
+
+			break;
+		}
+	}
+
+	g2d_userptr = kzalloc(sizeof(*g2d_userptr), GFP_KERNEL);
+	if (!g2d_userptr)
+		return ERR_PTR(-ENOMEM);
+
+	atomic_set(&g2d_userptr->refcount, 1);
+
+	start = userptr & PAGE_MASK;
+	offset = userptr & ~PAGE_MASK;
+	end = PAGE_ALIGN(userptr + size);
+	npages = (end - start) >> PAGE_SHIFT;
+	g2d_userptr->npages = npages;
+
+	pages = drm_calloc_large(npages, sizeof(struct page *));
+	if (!pages) {
+		DRM_ERROR("failed to allocate pages.\n");
+		ret = -ENOMEM;
+		goto err_free;
+	}
+
+	down_read(&current->mm->mmap_sem);
+	vma = find_vma(current->mm, userptr);
+	if (!vma) {
+		up_read(&current->mm->mmap_sem);
+		DRM_ERROR("failed to get vm region.\n");
+		ret = -EFAULT;
+		goto err_free_pages;
+	}
+
+	if (vma->vm_end < userptr + size) {
+		up_read(&current->mm->mmap_sem);
+		DRM_ERROR("vma is too small.\n");
+		ret = -EFAULT;
+		goto err_free_pages;
+	}
+
+	g2d_userptr->vma = exynos_gem_get_vma(vma);
+	if (!g2d_userptr->vma) {
+		up_read(&current->mm->mmap_sem);
+		DRM_ERROR("failed to copy vma.\n");
+		ret = -ENOMEM;
+		goto err_free_pages;
+	}
+
+	g2d_userptr->size = size;
+
+	ret = exynos_gem_get_pages_from_userptr(start & PAGE_MASK,
+						npages, pages, vma);
+	if (ret < 0) {
+		up_read(&current->mm->mmap_sem);
+		DRM_ERROR("failed to get user pages from userptr.\n");
+		goto err_put_vma;
+	}
+
+	up_read(&current->mm->mmap_sem);
+	g2d_userptr->pages = pages;
+
+	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
+	if (!sgt) {
+		ret = -ENOMEM;
+		goto err_free_userptr;
+	}
+
+	ret = sg_alloc_table_from_pages(sgt, pages, npages, offset,
+					size, GFP_KERNEL);
+	if (ret < 0) {
+		DRM_ERROR("failed to get sgt from pages.\n");
+		goto err_free_sgt;
+	}
+
+	g2d_userptr->sgt = sgt;
+
+	ret = exynos_gem_map_sgt_with_dma(drm_dev, g2d_userptr->sgt,
+						DMA_BIDIRECTIONAL);
+	if (ret < 0) {
+		DRM_ERROR("failed to map sgt with dma region.\n");
+		goto err_sg_free_table;
+	}
+
+	g2d_userptr->dma_addr = sgt->sgl[0].dma_address;
+	g2d_userptr->userptr = userptr;
+
+	list_add_tail(&g2d_userptr->list, &g2d_priv->userptr_list);
+
+	if (g2d->current_pool + (npages << PAGE_SHIFT) < g2d->max_pool) {
+		g2d->current_pool += npages << PAGE_SHIFT;
+		g2d_userptr->in_pool = true;
+	}
+
+	*obj = (unsigned long)g2d_userptr;
+
+	return &g2d_userptr->dma_addr;
+
+err_sg_free_table:
+	sg_free_table(sgt);
+
+err_free_sgt:
+	kfree(sgt);
+
+err_free_userptr:
+	exynos_gem_put_pages_to_userptr(g2d_userptr->pages,
+					g2d_userptr->npages,
+					g2d_userptr->vma);
+
+err_put_vma:
+	exynos_gem_put_vma(g2d_userptr->vma);
+
+err_free_pages:
+	drm_free_large(pages);
+
+err_free:
+	kfree(g2d_userptr);
+
+	return ERR_PTR(ret);
+}
+
+static void g2d_userptr_free_all(struct drm_device *drm_dev,
+					struct g2d_data *g2d,
+					struct drm_file *filp)
+{
+	struct drm_exynos_file_private *file_priv = filp->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct g2d_cmdlist_userptr *g2d_userptr, *n;
+
+	list_for_each_entry_safe(g2d_userptr, n, &g2d_priv->userptr_list, list)
+		if (g2d_userptr->in_pool)
+			g2d_userptr_put_dma_addr(drm_dev,
+						(unsigned long)g2d_userptr,
+						true);
+
+	g2d->current_pool = 0;
+}
+
+static enum g2d_reg_type g2d_get_reg_type(int reg_offset)
+{
+	enum g2d_reg_type reg_type;
+
+	switch (reg_offset) {
+	case G2D_SRC_BASE_ADDR:
+	case G2D_SRC_COLOR_MODE:
+	case G2D_SRC_LEFT_TOP:
+	case G2D_SRC_RIGHT_BOTTOM:
+		reg_type = REG_TYPE_SRC;
+		break;
+	case G2D_SRC_PLANE2_BASE_ADDR:
+		reg_type = REG_TYPE_SRC_PLANE2;
+		break;
+	case G2D_DST_BASE_ADDR:
+	case G2D_DST_COLOR_MODE:
+	case G2D_DST_LEFT_TOP:
+	case G2D_DST_RIGHT_BOTTOM:
+		reg_type = REG_TYPE_DST;
+		break;
+	case G2D_DST_PLANE2_BASE_ADDR:
+		reg_type = REG_TYPE_DST_PLANE2;
+		break;
+	case G2D_PAT_BASE_ADDR:
+		reg_type = REG_TYPE_PAT;
+		break;
+	case G2D_MSK_BASE_ADDR:
+		reg_type = REG_TYPE_MSK;
+		break;
+	default:
+		reg_type = REG_TYPE_NONE;
+		DRM_ERROR("Unknown register offset![%d]\n", reg_offset);
+		break;
+	}
+
+	return reg_type;
+}
+
+static unsigned long g2d_get_buf_bpp(unsigned int format)
+{
+	unsigned long bpp;
+
+	switch (format) {
+	case G2D_FMT_XRGB8888:
+	case G2D_FMT_ARGB8888:
+		bpp = 4;
+		break;
+	case G2D_FMT_RGB565:
+	case G2D_FMT_XRGB1555:
+	case G2D_FMT_ARGB1555:
+	case G2D_FMT_XRGB4444:
+	case G2D_FMT_ARGB4444:
+		bpp = 2;
+		break;
+	case G2D_FMT_PACKED_RGB888:
+		bpp = 3;
+		break;
+	default:
+		bpp = 1;
+		break;
+	}
+
+	return bpp;
+}
+
+static bool g2d_check_buf_desc_is_valid(struct g2d_buf_desc *buf_desc,
+						enum g2d_reg_type reg_type,
+						unsigned long size)
+{
+	unsigned int width, height;
+	unsigned long area;
+
+	/*
+	 * check source and destination buffers only.
+	 * so the others are always valid.
+	 */
+	if (reg_type != REG_TYPE_SRC && reg_type != REG_TYPE_DST)
+		return true;
+
+	width = buf_desc->right_x - buf_desc->left_x;
+	if (width < G2D_LEN_MIN || width > G2D_LEN_MAX) {
+		DRM_ERROR("width[%u] is out of range!\n", width);
+		return false;
+	}
+
+	height = buf_desc->bottom_y - buf_desc->top_y;
+	if (height < G2D_LEN_MIN || height > G2D_LEN_MAX) {
+		DRM_ERROR("height[%u] is out of range!\n", height);
+		return false;
+	}
+
+	area = (unsigned long)width * (unsigned long)height *
+					g2d_get_buf_bpp(buf_desc->format);
+	if (area > size) {
+		DRM_ERROR("area[%lu] is out of range[%lu]!\n", area, size);
+		return false;
+	}
+
+	return true;
+}
+
+static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
+				struct g2d_cmdlist_node *node,
+				struct drm_device *drm_dev,
+				struct drm_file *file)
+{
+	struct g2d_cmdlist *cmdlist = node->cmdlist;
+	struct g2d_buf_info *buf_info = &node->buf_info;
+	int offset;
+	int ret;
+	int i;
+
+	for (i = 0; i < buf_info->map_nr; i++) {
+		struct g2d_buf_desc *buf_desc;
+		enum g2d_reg_type reg_type;
+		int reg_pos;
+		unsigned long handle;
+		dma_addr_t *addr;
+
+		reg_pos = cmdlist->last - 2 * (i + 1);
+
+		offset = cmdlist->data[reg_pos];
+		handle = cmdlist->data[reg_pos + 1];
+
+		reg_type = g2d_get_reg_type(offset);
+		if (reg_type == REG_TYPE_NONE) {
+			ret = -EFAULT;
+			goto err;
+		}
+
+		buf_desc = &buf_info->descs[reg_type];
+
+		if (buf_info->types[reg_type] == BUF_TYPE_GEM) {
+			unsigned long size;
+
+			size = exynos_drm_gem_get_size(drm_dev, handle, file);
+			if (!size) {
+				ret = -EFAULT;
+				goto err;
+			}
+
+			if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type,
+									size)) {
+				ret = -EFAULT;
+				goto err;
+			}
+
+			addr = exynos_drm_gem_get_dma_addr(drm_dev, handle,
+								file);
+			if (IS_ERR(addr)) {
+				ret = -EFAULT;
+				goto err;
+			}
+		} else {
+			struct drm_exynos_g2d_userptr g2d_userptr;
+
+			if (copy_from_user(&g2d_userptr, (void __user *)handle,
+				sizeof(struct drm_exynos_g2d_userptr))) {
+				ret = -EFAULT;
+				goto err;
+			}
+
+			if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type,
+							g2d_userptr.size)) {
+				ret = -EFAULT;
+				goto err;
+			}
+
+			addr = g2d_userptr_get_dma_addr(drm_dev,
+							g2d_userptr.userptr,
+							g2d_userptr.size,
+							file,
+							&handle);
+			if (IS_ERR(addr)) {
+				ret = -EFAULT;
+				goto err;
+			}
+		}
+
+		cmdlist->data[reg_pos + 1] = *addr;
+		buf_info->reg_types[i] = reg_type;
+		buf_info->handles[reg_type] = handle;
+	}
+
+	return 0;
+
+err:
+	buf_info->map_nr = i;
+	return ret;
+}
+
+static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
+				  struct g2d_cmdlist_node *node,
+				  struct drm_file *filp)
+{
+	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
+	struct g2d_buf_info *buf_info = &node->buf_info;
+	int i;
+
+	for (i = 0; i < buf_info->map_nr; i++) {
+		struct g2d_buf_desc *buf_desc;
+		enum g2d_reg_type reg_type;
+		unsigned long handle;
+
+		reg_type = buf_info->reg_types[i];
+
+		buf_desc = &buf_info->descs[reg_type];
+		handle = buf_info->handles[reg_type];
+
+		if (buf_info->types[reg_type] == BUF_TYPE_GEM)
+			exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle,
+							filp);
+		else
+			g2d_userptr_put_dma_addr(subdrv->drm_dev, handle,
+							false);
+
+		buf_info->reg_types[i] = REG_TYPE_NONE;
+		buf_info->handles[reg_type] = 0;
+		buf_info->types[reg_type] = 0;
+		memset(buf_desc, 0x00, sizeof(*buf_desc));
+	}
+
+	buf_info->map_nr = 0;
+}
+
+static void g2d_dma_start(struct g2d_data *g2d,
+			  struct g2d_runqueue_node *runqueue_node)
+{
+	struct g2d_cmdlist_node *node =
+				list_first_entry(&runqueue_node->run_cmdlist,
+						struct g2d_cmdlist_node, list);
+	int ret;
+
+	ret = pm_runtime_get_sync(g2d->dev);
+	if (ret < 0)
+		return;
+
+	writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR);
+	writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND);
+}
+
+static struct g2d_runqueue_node *g2d_get_runqueue_node(struct g2d_data *g2d)
+{
+	struct g2d_runqueue_node *runqueue_node;
+
+	if (list_empty(&g2d->runqueue))
+		return NULL;
+
+	runqueue_node = list_first_entry(&g2d->runqueue,
+					 struct g2d_runqueue_node, list);
+	list_del_init(&runqueue_node->list);
+	return runqueue_node;
+}
+
+static void g2d_free_runqueue_node(struct g2d_data *g2d,
+				   struct g2d_runqueue_node *runqueue_node)
+{
+	struct g2d_cmdlist_node *node;
+
+	if (!runqueue_node)
+		return;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	/*
+	 * commands in run_cmdlist have been completed so unmap all gem
+	 * objects in each command node so that they are unreferenced.
+	 */
+	list_for_each_entry(node, &runqueue_node->run_cmdlist, list)
+		g2d_unmap_cmdlist_gem(g2d, node, runqueue_node->filp);
+	list_splice_tail_init(&runqueue_node->run_cmdlist, &g2d->free_cmdlist);
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	kmem_cache_free(g2d->runqueue_slab, runqueue_node);
+}
+
+static void g2d_exec_runqueue(struct g2d_data *g2d)
+{
+	g2d->runqueue_node = g2d_get_runqueue_node(g2d);
+	if (g2d->runqueue_node)
+		g2d_dma_start(g2d, g2d->runqueue_node);
+}
+
+static void g2d_runqueue_worker(struct work_struct *work)
+{
+	struct g2d_data *g2d = container_of(work, struct g2d_data,
+					    runqueue_work);
+
+	mutex_lock(&g2d->runqueue_mutex);
+	pm_runtime_put_sync(g2d->dev);
+
+	complete(&g2d->runqueue_node->complete);
+	if (g2d->runqueue_node->async)
+		g2d_free_runqueue_node(g2d, g2d->runqueue_node);
+
+	if (g2d->suspended)
+		g2d->runqueue_node = NULL;
+	else
+		g2d_exec_runqueue(g2d);
+	mutex_unlock(&g2d->runqueue_mutex);
+}
+
+static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
+{
+	struct drm_device *drm_dev = g2d->subdrv.drm_dev;
+	struct g2d_runqueue_node *runqueue_node = g2d->runqueue_node;
+	struct drm_exynos_pending_g2d_event *e;
+	struct timeval now;
+	unsigned long flags;
+
+	if (list_empty(&runqueue_node->event_list))
+		return;
+
+	e = list_first_entry(&runqueue_node->event_list,
+			     struct drm_exynos_pending_g2d_event, base.link);
+
+	do_gettimeofday(&now);
+	e->event.tv_sec = now.tv_sec;
+	e->event.tv_usec = now.tv_usec;
+	e->event.cmdlist_no = cmdlist_no;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+	list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+	wake_up_interruptible(&e->base.file_priv->event_wait);
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+}
+
+static irqreturn_t g2d_irq_handler(int irq, void *dev_id)
+{
+	struct g2d_data *g2d = dev_id;
+	u32 pending;
+
+	pending = readl_relaxed(g2d->regs + G2D_INTC_PEND);
+	if (pending)
+		writel_relaxed(pending, g2d->regs + G2D_INTC_PEND);
+
+	if (pending & G2D_INTP_GCMD_FIN) {
+		u32 cmdlist_no = readl_relaxed(g2d->regs + G2D_DMA_STATUS);
+
+		cmdlist_no = (cmdlist_no & G2D_DMA_LIST_DONE_COUNT) >>
+						G2D_DMA_LIST_DONE_COUNT_OFFSET;
+
+		g2d_finish_event(g2d, cmdlist_no);
+
+		writel_relaxed(0, g2d->regs + G2D_DMA_HOLD_CMD);
+		if (!(pending & G2D_INTP_ACMD_FIN)) {
+			writel_relaxed(G2D_DMA_CONTINUE,
+					g2d->regs + G2D_DMA_COMMAND);
+		}
+	}
+
+	if (pending & G2D_INTP_ACMD_FIN)
+		queue_work(g2d->g2d_workq, &g2d->runqueue_work);
+
+	return IRQ_HANDLED;
+}
+
+static int g2d_check_reg_offset(struct device *dev,
+				struct g2d_cmdlist_node *node,
+				int nr, bool for_addr)
+{
+	struct g2d_cmdlist *cmdlist = node->cmdlist;
+	int reg_offset;
+	int index;
+	int i;
+
+	for (i = 0; i < nr; i++) {
+		struct g2d_buf_info *buf_info = &node->buf_info;
+		struct g2d_buf_desc *buf_desc;
+		enum g2d_reg_type reg_type;
+		unsigned long value;
+
+		index = cmdlist->last - 2 * (i + 1);
+
+		reg_offset = cmdlist->data[index] & ~0xfffff000;
+		if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END)
+			goto err;
+		if (reg_offset % 4)
+			goto err;
+
+		switch (reg_offset) {
+		case G2D_SRC_BASE_ADDR:
+		case G2D_SRC_PLANE2_BASE_ADDR:
+		case G2D_DST_BASE_ADDR:
+		case G2D_DST_PLANE2_BASE_ADDR:
+		case G2D_PAT_BASE_ADDR:
+		case G2D_MSK_BASE_ADDR:
+			if (!for_addr)
+				goto err;
+
+			reg_type = g2d_get_reg_type(reg_offset);
+			if (reg_type == REG_TYPE_NONE)
+				goto err;
+
+			/* check userptr buffer type. */
+			if ((cmdlist->data[index] & ~0x7fffffff) >> 31) {
+				buf_info->types[reg_type] = BUF_TYPE_USERPTR;
+				cmdlist->data[index] &= ~G2D_BUF_USERPTR;
+			} else
+				buf_info->types[reg_type] = BUF_TYPE_GEM;
+			break;
+		case G2D_SRC_COLOR_MODE:
+		case G2D_DST_COLOR_MODE:
+			if (for_addr)
+				goto err;
+
+			reg_type = g2d_get_reg_type(reg_offset);
+			if (reg_type == REG_TYPE_NONE)
+				goto err;
+
+			buf_desc = &buf_info->descs[reg_type];
+			value = cmdlist->data[index + 1];
+
+			buf_desc->format = value & 0xf;
+			break;
+		case G2D_SRC_LEFT_TOP:
+		case G2D_DST_LEFT_TOP:
+			if (for_addr)
+				goto err;
+
+			reg_type = g2d_get_reg_type(reg_offset);
+			if (reg_type == REG_TYPE_NONE)
+				goto err;
+
+			buf_desc = &buf_info->descs[reg_type];
+			value = cmdlist->data[index + 1];
+
+			buf_desc->left_x = value & 0x1fff;
+			buf_desc->top_y = (value & 0x1fff0000) >> 16;
+			break;
+		case G2D_SRC_RIGHT_BOTTOM:
+		case G2D_DST_RIGHT_BOTTOM:
+			if (for_addr)
+				goto err;
+
+			reg_type = g2d_get_reg_type(reg_offset);
+			if (reg_type == REG_TYPE_NONE)
+				goto err;
+
+			buf_desc = &buf_info->descs[reg_type];
+			value = cmdlist->data[index + 1];
+
+			buf_desc->right_x = value & 0x1fff;
+			buf_desc->bottom_y = (value & 0x1fff0000) >> 16;
+			break;
+		default:
+			if (for_addr)
+				goto err;
+			break;
+		}
+	}
+
+	return 0;
+
+err:
+	dev_err(dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]);
+	return -EINVAL;
+}
+
+/* ioctl functions */
+int exynos_g2d_get_ver_ioctl(struct drm_device *drm_dev, void *data,
+			     struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct device *dev;
+	struct g2d_data *g2d;
+	struct drm_exynos_g2d_get_ver *ver = data;
+
+	if (!g2d_priv)
+		return -ENODEV;
+
+	dev = g2d_priv->dev;
+	if (!dev)
+		return -ENODEV;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return -EFAULT;
+
+	ver->major = G2D_HW_MAJOR_VER;
+	ver->minor = G2D_HW_MINOR_VER;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_get_ver_ioctl);
+
+int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
+				 struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct device *dev;
+	struct g2d_data *g2d;
+	struct drm_exynos_g2d_set_cmdlist *req = data;
+	struct drm_exynos_g2d_cmd *cmd;
+	struct drm_exynos_pending_g2d_event *e;
+	struct g2d_cmdlist_node *node;
+	struct g2d_cmdlist *cmdlist;
+	unsigned long flags;
+	int size;
+	int ret;
+
+	if (!g2d_priv)
+		return -ENODEV;
+
+	dev = g2d_priv->dev;
+	if (!dev)
+		return -ENODEV;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return -EFAULT;
+
+	node = g2d_get_cmdlist(g2d);
+	if (!node)
+		return -ENOMEM;
+
+	node->event = NULL;
+
+	if (req->event_type != G2D_EVENT_NOT) {
+		spin_lock_irqsave(&drm_dev->event_lock, flags);
+		if (file->event_space < sizeof(e->event)) {
+			spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+			ret = -ENOMEM;
+			goto err;
+		}
+		file->event_space -= sizeof(e->event);
+		spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+		e = kzalloc(sizeof(*node->event), GFP_KERNEL);
+		if (!e) {
+			spin_lock_irqsave(&drm_dev->event_lock, flags);
+			file->event_space += sizeof(e->event);
+			spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		e->event.base.type = DRM_EXYNOS_G2D_EVENT;
+		e->event.base.length = sizeof(e->event);
+		e->event.user_data = req->user_data;
+		e->base.event = &e->event.base;
+		e->base.file_priv = file;
+		e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+		node->event = e;
+	}
+
+	cmdlist = node->cmdlist;
+
+	cmdlist->last = 0;
+
+	/*
+	 * If don't clear SFR registers, the cmdlist is affected by register
+	 * values of previous cmdlist. G2D hw executes SFR clear command and
+	 * a next command at the same time then the next command is ignored and
+	 * is executed rightly from next next command, so needs a dummy command
+	 * to next command of SFR clear command.
+	 */
+	cmdlist->data[cmdlist->last++] = G2D_SOFT_RESET;
+	cmdlist->data[cmdlist->last++] = G2D_SFRCLEAR;
+	cmdlist->data[cmdlist->last++] = G2D_SRC_BASE_ADDR;
+	cmdlist->data[cmdlist->last++] = 0;
+
+	/*
+	 * 'LIST_HOLD' command should be set to the DMA_HOLD_CMD_REG
+	 * and GCF bit should be set to INTEN register if user wants
+	 * G2D interrupt event once current command list execution is
+	 * finished.
+	 * Otherwise only ACF bit should be set to INTEN register so
+	 * that one interrupt is occurred after all command lists
+	 * have been completed.
+	 */
+	if (node->event) {
+		cmdlist->data[cmdlist->last++] = G2D_INTEN;
+		cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF | G2D_INTEN_GCF;
+		cmdlist->data[cmdlist->last++] = G2D_DMA_HOLD_CMD;
+		cmdlist->data[cmdlist->last++] = G2D_LIST_HOLD;
+	} else {
+		cmdlist->data[cmdlist->last++] = G2D_INTEN;
+		cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF;
+	}
+
+	/* Check size of cmdlist: last 2 is about G2D_BITBLT_START */
+	size = cmdlist->last + req->cmd_nr * 2 + req->cmd_buf_nr * 2 + 2;
+	if (size > G2D_CMDLIST_DATA_NUM) {
+		dev_err(dev, "cmdlist size is too big\n");
+		ret = -EINVAL;
+		goto err_free_event;
+	}
+
+	cmd = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd;
+
+	if (copy_from_user(cmdlist->data + cmdlist->last,
+				(void __user *)cmd,
+				sizeof(*cmd) * req->cmd_nr)) {
+		ret = -EFAULT;
+		goto err_free_event;
+	}
+	cmdlist->last += req->cmd_nr * 2;
+
+	ret = g2d_check_reg_offset(dev, node, req->cmd_nr, false);
+	if (ret < 0)
+		goto err_free_event;
+
+	node->buf_info.map_nr = req->cmd_buf_nr;
+	if (req->cmd_buf_nr) {
+		struct drm_exynos_g2d_cmd *cmd_buf;
+
+		cmd_buf = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd_buf;
+
+		if (copy_from_user(cmdlist->data + cmdlist->last,
+					(void __user *)cmd_buf,
+					sizeof(*cmd_buf) * req->cmd_buf_nr)) {
+			ret = -EFAULT;
+			goto err_free_event;
+		}
+		cmdlist->last += req->cmd_buf_nr * 2;
+
+		ret = g2d_check_reg_offset(dev, node, req->cmd_buf_nr, true);
+		if (ret < 0)
+			goto err_free_event;
+
+		ret = g2d_map_cmdlist_gem(g2d, node, drm_dev, file);
+		if (ret < 0)
+			goto err_unmap;
+	}
+
+	cmdlist->data[cmdlist->last++] = G2D_BITBLT_START;
+	cmdlist->data[cmdlist->last++] = G2D_START_BITBLT;
+
+	/* head */
+	cmdlist->head = cmdlist->last / 2;
+
+	/* tail */
+	cmdlist->data[cmdlist->last] = 0;
+
+	g2d_add_cmdlist_to_inuse(g2d_priv, node);
+
+	return 0;
+
+err_unmap:
+	g2d_unmap_cmdlist_gem(g2d, node, file);
+err_free_event:
+	if (node->event) {
+		spin_lock_irqsave(&drm_dev->event_lock, flags);
+		file->event_space += sizeof(e->event);
+		spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+		kfree(node->event);
+	}
+err:
+	g2d_put_cmdlist(g2d, node);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_set_cmdlist_ioctl);
+
+int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
+			  struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct device *dev;
+	struct g2d_data *g2d;
+	struct drm_exynos_g2d_exec *req = data;
+	struct g2d_runqueue_node *runqueue_node;
+	struct list_head *run_cmdlist;
+	struct list_head *event_list;
+
+	if (!g2d_priv)
+		return -ENODEV;
+
+	dev = g2d_priv->dev;
+	if (!dev)
+		return -ENODEV;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return -EFAULT;
+
+	runqueue_node = kmem_cache_alloc(g2d->runqueue_slab, GFP_KERNEL);
+	if (!runqueue_node) {
+		dev_err(dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+	run_cmdlist = &runqueue_node->run_cmdlist;
+	event_list = &runqueue_node->event_list;
+	INIT_LIST_HEAD(run_cmdlist);
+	INIT_LIST_HEAD(event_list);
+	init_completion(&runqueue_node->complete);
+	runqueue_node->async = req->async;
+
+	list_splice_init(&g2d_priv->inuse_cmdlist, run_cmdlist);
+	list_splice_init(&g2d_priv->event_list, event_list);
+
+	if (list_empty(run_cmdlist)) {
+		dev_err(dev, "there is no inuse cmdlist\n");
+		kmem_cache_free(g2d->runqueue_slab, runqueue_node);
+		return -EPERM;
+	}
+
+	mutex_lock(&g2d->runqueue_mutex);
+	runqueue_node->pid = current->pid;
+	runqueue_node->filp = file;
+	list_add_tail(&runqueue_node->list, &g2d->runqueue);
+	if (!g2d->runqueue_node)
+		g2d_exec_runqueue(g2d);
+	mutex_unlock(&g2d->runqueue_mutex);
+
+	if (runqueue_node->async)
+		goto out;
+
+	wait_for_completion(&runqueue_node->complete);
+	g2d_free_runqueue_node(g2d, runqueue_node);
+
+out:
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_exec_ioctl);
+
+static int g2d_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
+{
+	struct g2d_data *g2d;
+	int ret;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return -EFAULT;
+
+	/* allocate dma-aware cmdlist buffer. */
+	ret = g2d_init_cmdlist(g2d);
+	if (ret < 0) {
+		dev_err(dev, "cmdlist init failed\n");
+		return ret;
+	}
+
+	if (!is_drm_iommu_supported(drm_dev))
+		return 0;
+
+	ret = drm_iommu_attach_device(drm_dev, dev);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable iommu.\n");
+		g2d_fini_cmdlist(g2d);
+	}
+
+	return ret;
+
+}
+
+static void g2d_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
+{
+	if (!is_drm_iommu_supported(drm_dev))
+		return;
+
+	drm_iommu_detach_device(drm_dev, dev);
+}
+
+static int g2d_open(struct drm_device *drm_dev, struct device *dev,
+			struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv;
+
+	g2d_priv = kzalloc(sizeof(*g2d_priv), GFP_KERNEL);
+	if (!g2d_priv)
+		return -ENOMEM;
+
+	g2d_priv->dev = dev;
+	file_priv->g2d_priv = g2d_priv;
+
+	INIT_LIST_HEAD(&g2d_priv->inuse_cmdlist);
+	INIT_LIST_HEAD(&g2d_priv->event_list);
+	INIT_LIST_HEAD(&g2d_priv->userptr_list);
+
+	return 0;
+}
+
+static void g2d_close(struct drm_device *drm_dev, struct device *dev,
+			struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct g2d_data *g2d;
+	struct g2d_cmdlist_node *node, *n;
+
+	if (!dev)
+		return;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list) {
+		/*
+		 * unmap all gem objects not completed.
+		 *
+		 * P.S. if current process was terminated forcely then
+		 * there may be some commands in inuse_cmdlist so unmap
+		 * them.
+		 */
+		g2d_unmap_cmdlist_gem(g2d, node, file);
+		list_move_tail(&node->list, &g2d->free_cmdlist);
+	}
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	/* release all g2d_userptr in pool. */
+	g2d_userptr_free_all(drm_dev, g2d, file);
+
+	kfree(file_priv->g2d_priv);
+}
+
+static int g2d_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct g2d_data *g2d;
+	struct exynos_drm_subdrv *subdrv;
+	int ret;
+
+	g2d = devm_kzalloc(dev, sizeof(*g2d), GFP_KERNEL);
+	if (!g2d)
+		return -ENOMEM;
+
+	g2d->runqueue_slab = kmem_cache_create("g2d_runqueue_slab",
+			sizeof(struct g2d_runqueue_node), 0, 0, NULL);
+	if (!g2d->runqueue_slab)
+		return -ENOMEM;
+
+	g2d->dev = dev;
+
+	g2d->g2d_workq = create_singlethread_workqueue("g2d");
+	if (!g2d->g2d_workq) {
+		dev_err(dev, "failed to create workqueue\n");
+		ret = -EINVAL;
+		goto err_destroy_slab;
+	}
+
+	INIT_WORK(&g2d->runqueue_work, g2d_runqueue_worker);
+	INIT_LIST_HEAD(&g2d->free_cmdlist);
+	INIT_LIST_HEAD(&g2d->runqueue);
+
+	mutex_init(&g2d->cmdlist_mutex);
+	mutex_init(&g2d->runqueue_mutex);
+
+	g2d->gate_clk = devm_clk_get(dev, "fimg2d");
+	if (IS_ERR(g2d->gate_clk)) {
+		dev_err(dev, "failed to get gate clock\n");
+		ret = PTR_ERR(g2d->gate_clk);
+		goto err_destroy_workqueue;
+	}
+
+	pm_runtime_enable(dev);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	g2d->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(g2d->regs)) {
+		ret = PTR_ERR(g2d->regs);
+		goto err_put_clk;
+	}
+
+	g2d->irq = platform_get_irq(pdev, 0);
+	if (g2d->irq < 0) {
+		dev_err(dev, "failed to get irq\n");
+		ret = g2d->irq;
+		goto err_put_clk;
+	}
+
+	ret = devm_request_irq(dev, g2d->irq, g2d_irq_handler, 0,
+								"drm_g2d", g2d);
+	if (ret < 0) {
+		dev_err(dev, "irq request failed\n");
+		goto err_put_clk;
+	}
+
+	g2d->max_pool = MAX_POOL;
+
+	platform_set_drvdata(pdev, g2d);
+
+	subdrv = &g2d->subdrv;
+	subdrv->dev = dev;
+	subdrv->probe = g2d_subdrv_probe;
+	subdrv->remove = g2d_subdrv_remove;
+	subdrv->open = g2d_open;
+	subdrv->close = g2d_close;
+
+	ret = exynos_drm_subdrv_register(subdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to register drm g2d device\n");
+		goto err_put_clk;
+	}
+
+	dev_info(dev, "The exynos g2d(ver %d.%d) successfully probed\n",
+			G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
+
+	return 0;
+
+err_put_clk:
+	pm_runtime_disable(dev);
+err_destroy_workqueue:
+	destroy_workqueue(g2d->g2d_workq);
+err_destroy_slab:
+	kmem_cache_destroy(g2d->runqueue_slab);
+	return ret;
+}
+
+static int g2d_remove(struct platform_device *pdev)
+{
+	struct g2d_data *g2d = platform_get_drvdata(pdev);
+
+	cancel_work_sync(&g2d->runqueue_work);
+	exynos_drm_subdrv_unregister(&g2d->subdrv);
+
+	while (g2d->runqueue_node) {
+		g2d_free_runqueue_node(g2d, g2d->runqueue_node);
+		g2d->runqueue_node = g2d_get_runqueue_node(g2d);
+	}
+
+	pm_runtime_disable(&pdev->dev);
+
+	g2d_fini_cmdlist(g2d);
+	destroy_workqueue(g2d->g2d_workq);
+	kmem_cache_destroy(g2d->runqueue_slab);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int g2d_suspend(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+
+	mutex_lock(&g2d->runqueue_mutex);
+	g2d->suspended = true;
+	mutex_unlock(&g2d->runqueue_mutex);
+
+	while (g2d->runqueue_node)
+		/* FIXME: good range? */
+		usleep_range(500, 1000);
+
+	flush_work(&g2d->runqueue_work);
+
+	return 0;
+}
+
+static int g2d_resume(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+
+	g2d->suspended = false;
+	g2d_exec_runqueue(g2d);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM
+static int g2d_runtime_suspend(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(g2d->gate_clk);
+
+	return 0;
+}
+
+static int g2d_runtime_resume(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(g2d->gate_clk);
+	if (ret < 0)
+		dev_warn(dev, "failed to enable clock.\n");
+
+	return ret;
+}
+#endif
+
+static const struct dev_pm_ops g2d_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(g2d_suspend, g2d_resume)
+	SET_RUNTIME_PM_OPS(g2d_runtime_suspend, g2d_runtime_resume, NULL)
+};
+
+static const struct of_device_id exynos_g2d_match[] = {
+	{ .compatible = "samsung,exynos5250-g2d" },
+	{ .compatible = "samsung,exynos4212-g2d" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_g2d_match);
+
+struct platform_driver g2d_driver = {
+	.probe		= g2d_probe,
+	.remove		= g2d_remove,
+	.driver		= {
+		.name	= "s5p-g2d",
+		.owner	= THIS_MODULE,
+		.pm	= &g2d_pm_ops,
+		.of_match_table = exynos_g2d_match,
+	},
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.h
new file mode 100644
index 000000000..1a9c7ca8c
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_g2d.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#ifdef CONFIG_DRM_EXYNOS_G2D
+extern int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
+				    struct drm_file *file_priv);
+extern int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file_priv);
+extern int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
+				 struct drm_file *file_priv);
+#else
+static inline int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
+					   struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev,
+					       void *data,
+					       struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.c
new file mode 100644
index 000000000..0d5b9698d
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -0,0 +1,651 @@
+/* exynos_drm_gem.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_vma_manager.h>
+
+#include <linux/shmem_fs.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_buf.h"
+#include "exynos_drm_iommu.h"
+
+static unsigned int convert_to_vm_err_msg(int msg)
+{
+	unsigned int out_msg;
+
+	switch (msg) {
+	case 0:
+	case -ERESTARTSYS:
+	case -EINTR:
+		out_msg = VM_FAULT_NOPAGE;
+		break;
+
+	case -ENOMEM:
+		out_msg = VM_FAULT_OOM;
+		break;
+
+	default:
+		out_msg = VM_FAULT_SIGBUS;
+		break;
+	}
+
+	return out_msg;
+}
+
+static int check_gem_flags(unsigned int flags)
+{
+	if (flags & ~(EXYNOS_BO_MASK)) {
+		DRM_ERROR("invalid flags.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void update_vm_cache_attr(struct exynos_drm_gem_obj *obj,
+					struct vm_area_struct *vma)
+{
+	DRM_DEBUG_KMS("flags = 0x%x\n", obj->flags);
+
+	/* non-cachable as default. */
+	if (obj->flags & EXYNOS_BO_CACHABLE)
+		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	else if (obj->flags & EXYNOS_BO_WC)
+		vma->vm_page_prot =
+			pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+	else
+		vma->vm_page_prot =
+			pgprot_noncached(vm_get_page_prot(vma->vm_flags));
+}
+
+static unsigned long roundup_gem_size(unsigned long size, unsigned int flags)
+{
+	/* TODO */
+
+	return roundup(size, PAGE_SIZE);
+}
+
+static int exynos_drm_gem_map_buf(struct drm_gem_object *obj,
+					struct vm_area_struct *vma,
+					unsigned long f_vaddr,
+					pgoff_t page_offset)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
+	struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer;
+	struct scatterlist *sgl;
+	unsigned long pfn;
+	int i;
+
+	if (!buf->sgt)
+		return -EINTR;
+
+	if (page_offset >= (buf->size >> PAGE_SHIFT)) {
+		DRM_ERROR("invalid page offset\n");
+		return -EINVAL;
+	}
+
+	sgl = buf->sgt->sgl;
+	for_each_sg(buf->sgt->sgl, sgl, buf->sgt->nents, i) {
+		if (page_offset < (sgl->length >> PAGE_SHIFT))
+			break;
+		page_offset -=	(sgl->length >> PAGE_SHIFT);
+	}
+
+	pfn = __phys_to_pfn(sg_phys(sgl)) + page_offset;
+
+	return vm_insert_mixed(vma, f_vaddr, pfn);
+}
+
+static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
+					struct drm_file *file_priv,
+					unsigned int *handle)
+{
+	int ret;
+
+	/*
+	 * allocate a id of idr table where the obj is registered
+	 * and handle has the id what user can see.
+	 */
+	ret = drm_gem_handle_create(file_priv, obj, handle);
+	if (ret)
+		return ret;
+
+	DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle);
+
+	/* drop reference from allocate - handle holds it now. */
+	drm_gem_object_unreference_unlocked(obj);
+
+	return 0;
+}
+
+void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
+{
+	struct drm_gem_object *obj;
+	struct exynos_drm_gem_buf *buf;
+
+	obj = &exynos_gem_obj->base;
+	buf = exynos_gem_obj->buffer;
+
+	DRM_DEBUG_KMS("handle count = %d\n", obj->handle_count);
+
+	/*
+	 * do not release memory region from exporter.
+	 *
+	 * the region will be released by exporter
+	 * once dmabuf's refcount becomes 0.
+	 */
+	if (obj->import_attach)
+		goto out;
+
+	exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf);
+
+out:
+	exynos_drm_fini_buf(obj->dev, buf);
+	exynos_gem_obj->buffer = NULL;
+
+	drm_gem_free_mmap_offset(obj);
+
+	/* release file pointer to gem object. */
+	drm_gem_object_release(obj);
+
+	kfree(exynos_gem_obj);
+	exynos_gem_obj = NULL;
+}
+
+unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
+						unsigned int gem_handle,
+						struct drm_file *file_priv)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_gem_object *obj;
+
+	obj = drm_gem_object_lookup(dev, file_priv, gem_handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		return 0;
+	}
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	drm_gem_object_unreference_unlocked(obj);
+
+	return exynos_gem_obj->buffer->size;
+}
+
+
+struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+						      unsigned long size)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_gem_object *obj;
+	int ret;
+
+	exynos_gem_obj = kzalloc(sizeof(*exynos_gem_obj), GFP_KERNEL);
+	if (!exynos_gem_obj)
+		return NULL;
+
+	exynos_gem_obj->size = size;
+	obj = &exynos_gem_obj->base;
+
+	ret = drm_gem_object_init(dev, obj, size);
+	if (ret < 0) {
+		DRM_ERROR("failed to initialize gem object\n");
+		kfree(exynos_gem_obj);
+		return NULL;
+	}
+
+	DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp);
+
+	return exynos_gem_obj;
+}
+
+struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
+						unsigned int flags,
+						unsigned long size)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_gem_buf *buf;
+	int ret;
+
+	if (!size) {
+		DRM_ERROR("invalid size.\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	size = roundup_gem_size(size, flags);
+
+	ret = check_gem_flags(flags);
+	if (ret)
+		return ERR_PTR(ret);
+
+	buf = exynos_drm_init_buf(dev, size);
+	if (!buf)
+		return ERR_PTR(-ENOMEM);
+
+	exynos_gem_obj = exynos_drm_gem_init(dev, size);
+	if (!exynos_gem_obj) {
+		ret = -ENOMEM;
+		goto err_fini_buf;
+	}
+
+	exynos_gem_obj->buffer = buf;
+
+	/* set memory type and cache attribute from user side. */
+	exynos_gem_obj->flags = flags;
+
+	ret = exynos_drm_alloc_buf(dev, buf, flags);
+	if (ret < 0)
+		goto err_gem_fini;
+
+	return exynos_gem_obj;
+
+err_gem_fini:
+	drm_gem_object_release(&exynos_gem_obj->base);
+	kfree(exynos_gem_obj);
+err_fini_buf:
+	exynos_drm_fini_buf(dev, buf);
+	return ERR_PTR(ret);
+}
+
+int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data,
+				struct drm_file *file_priv)
+{
+	struct drm_exynos_gem_create *args = data;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	int ret;
+
+	exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size);
+	if (IS_ERR(exynos_gem_obj))
+		return PTR_ERR(exynos_gem_obj);
+
+	ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
+			&args->handle);
+	if (ret) {
+		exynos_drm_gem_destroy(exynos_gem_obj);
+		return ret;
+	}
+
+	return 0;
+}
+
+dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
+					unsigned int gem_handle,
+					struct drm_file *filp)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_gem_object *obj;
+
+	obj = drm_gem_object_lookup(dev, filp, gem_handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	return &exynos_gem_obj->buffer->dma_addr;
+}
+
+void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
+					unsigned int gem_handle,
+					struct drm_file *filp)
+{
+	struct drm_gem_object *obj;
+
+	obj = drm_gem_object_lookup(dev, filp, gem_handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		return;
+	}
+
+	drm_gem_object_unreference_unlocked(obj);
+
+	/*
+	 * decrease obj->refcount one more time because we has already
+	 * increased it at exynos_drm_gem_get_dma_addr().
+	 */
+	drm_gem_object_unreference_unlocked(obj);
+}
+
+int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem_obj *exynos_gem_obj,
+				      struct vm_area_struct *vma)
+{
+	struct drm_device *drm_dev = exynos_gem_obj->base.dev;
+	struct exynos_drm_gem_buf *buffer;
+	unsigned long vm_size;
+	int ret;
+
+	vma->vm_flags &= ~VM_PFNMAP;
+	vma->vm_pgoff = 0;
+
+	vm_size = vma->vm_end - vma->vm_start;
+
+	/*
+	 * a buffer contains information to physically continuous memory
+	 * allocated by user request or at framebuffer creation.
+	 */
+	buffer = exynos_gem_obj->buffer;
+
+	/* check if user-requested size is valid. */
+	if (vm_size > buffer->size)
+		return -EINVAL;
+
+	ret = dma_mmap_attrs(drm_dev->dev, vma, buffer->pages,
+				buffer->dma_addr, buffer->size,
+				&buffer->dma_attrs);
+	if (ret < 0) {
+		DRM_ERROR("failed to mmap.\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+				      struct drm_file *file_priv)
+{	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_exynos_gem_info *args = data;
+	struct drm_gem_object *obj;
+
+	mutex_lock(&dev->struct_mutex);
+
+	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	args->flags = exynos_gem_obj->flags;
+	args->size = exynos_gem_obj->size;
+
+	drm_gem_object_unreference(obj);
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+}
+
+struct vm_area_struct *exynos_gem_get_vma(struct vm_area_struct *vma)
+{
+	struct vm_area_struct *vma_copy;
+
+	vma_copy = kmalloc(sizeof(*vma_copy), GFP_KERNEL);
+	if (!vma_copy)
+		return NULL;
+
+	if (vma->vm_ops && vma->vm_ops->open)
+		vma->vm_ops->open(vma);
+
+	if (vma->vm_file)
+		get_file(vma->vm_file);
+
+	memcpy(vma_copy, vma, sizeof(*vma));
+
+	vma_copy->vm_mm = NULL;
+	vma_copy->vm_next = NULL;
+	vma_copy->vm_prev = NULL;
+
+	return vma_copy;
+}
+
+void exynos_gem_put_vma(struct vm_area_struct *vma)
+{
+	if (!vma)
+		return;
+
+	if (vma->vm_ops && vma->vm_ops->close)
+		vma->vm_ops->close(vma);
+
+	if (vma->vm_file)
+		fput(vma->vm_file);
+
+	kfree(vma);
+}
+
+int exynos_gem_get_pages_from_userptr(unsigned long start,
+						unsigned int npages,
+						struct page **pages,
+						struct vm_area_struct *vma)
+{
+	int get_npages;
+
+	/* the memory region mmaped with VM_PFNMAP. */
+	if (vma_is_io(vma)) {
+		unsigned int i;
+
+		for (i = 0; i < npages; ++i, start += PAGE_SIZE) {
+			unsigned long pfn;
+			int ret = follow_pfn(vma, start, &pfn);
+			if (ret)
+				return ret;
+
+			pages[i] = pfn_to_page(pfn);
+		}
+
+		if (i != npages) {
+			DRM_ERROR("failed to get user_pages.\n");
+			return -EINVAL;
+		}
+
+		return 0;
+	}
+
+	get_npages = get_user_pages(current, current->mm, start,
+					npages, 1, 1, pages, NULL);
+	get_npages = max(get_npages, 0);
+	if (get_npages != npages) {
+		DRM_ERROR("failed to get user_pages.\n");
+		while (get_npages)
+			put_page(pages[--get_npages]);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+void exynos_gem_put_pages_to_userptr(struct page **pages,
+					unsigned int npages,
+					struct vm_area_struct *vma)
+{
+	if (!vma_is_io(vma)) {
+		unsigned int i;
+
+		for (i = 0; i < npages; i++) {
+			set_page_dirty_lock(pages[i]);
+
+			/*
+			 * undo the reference we took when populating
+			 * the table.
+			 */
+			put_page(pages[i]);
+		}
+	}
+}
+
+int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev,
+				struct sg_table *sgt,
+				enum dma_data_direction dir)
+{
+	int nents;
+
+	mutex_lock(&drm_dev->struct_mutex);
+
+	nents = dma_map_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir);
+	if (!nents) {
+		DRM_ERROR("failed to map sgl with dma.\n");
+		mutex_unlock(&drm_dev->struct_mutex);
+		return nents;
+	}
+
+	mutex_unlock(&drm_dev->struct_mutex);
+	return 0;
+}
+
+void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev,
+				struct sg_table *sgt,
+				enum dma_data_direction dir)
+{
+	dma_unmap_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir);
+}
+
+void exynos_drm_gem_free_object(struct drm_gem_object *obj)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_gem_buf *buf;
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+	buf = exynos_gem_obj->buffer;
+
+	if (obj->import_attach)
+		drm_prime_gem_destroy(obj, buf->sgt);
+
+	exynos_drm_gem_destroy(to_exynos_gem_obj(obj));
+}
+
+int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
+			       struct drm_device *dev,
+			       struct drm_mode_create_dumb *args)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	int ret;
+
+	/*
+	 * allocate memory to be used for framebuffer.
+	 * - this callback would be called by user application
+	 *	with DRM_IOCTL_MODE_CREATE_DUMB command.
+	 */
+
+	args->pitch = args->width * ((args->bpp + 7) / 8);
+	args->size = args->pitch * args->height;
+
+	if (is_drm_iommu_supported(dev)) {
+		exynos_gem_obj = exynos_drm_gem_create(dev,
+			EXYNOS_BO_NONCONTIG | EXYNOS_BO_WC,
+			args->size);
+	} else {
+		exynos_gem_obj = exynos_drm_gem_create(dev,
+			EXYNOS_BO_CONTIG | EXYNOS_BO_WC,
+			args->size);
+	}
+
+	if (IS_ERR(exynos_gem_obj)) {
+		dev_warn(dev->dev, "FB allocation failed.\n");
+		return PTR_ERR(exynos_gem_obj);
+	}
+
+	ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
+			&args->handle);
+	if (ret) {
+		exynos_drm_gem_destroy(exynos_gem_obj);
+		return ret;
+	}
+
+	return 0;
+}
+
+int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
+				   struct drm_device *dev, uint32_t handle,
+				   uint64_t *offset)
+{
+	struct drm_gem_object *obj;
+	int ret = 0;
+
+	mutex_lock(&dev->struct_mutex);
+
+	/*
+	 * get offset of memory allocated for drm framebuffer.
+	 * - this callback would be called by user application
+	 *	with DRM_IOCTL_MODE_MAP_DUMB command.
+	 */
+
+	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	ret = drm_gem_create_mmap_offset(obj);
+	if (ret)
+		goto out;
+
+	*offset = drm_vma_node_offset_addr(&obj->vma_node);
+	DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset);
+
+out:
+	drm_gem_object_unreference(obj);
+unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct drm_gem_object *obj = vma->vm_private_data;
+	struct drm_device *dev = obj->dev;
+	unsigned long f_vaddr;
+	pgoff_t page_offset;
+	int ret;
+
+	page_offset = ((unsigned long)vmf->virtual_address -
+			vma->vm_start) >> PAGE_SHIFT;
+	f_vaddr = (unsigned long)vmf->virtual_address;
+
+	mutex_lock(&dev->struct_mutex);
+
+	ret = exynos_drm_gem_map_buf(obj, vma, f_vaddr, page_offset);
+	if (ret < 0)
+		DRM_ERROR("failed to map a buffer with user.\n");
+
+	mutex_unlock(&dev->struct_mutex);
+
+	return convert_to_vm_err_msg(ret);
+}
+
+int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_gem_object *obj;
+	int ret;
+
+	/* set vm_area_struct. */
+	ret = drm_gem_mmap(filp, vma);
+	if (ret < 0) {
+		DRM_ERROR("failed to mmap.\n");
+		return ret;
+	}
+
+	obj = vma->vm_private_data;
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	ret = check_gem_flags(exynos_gem_obj->flags);
+	if (ret)
+		goto err_close_vm;
+
+	update_vm_cache_attr(exynos_gem_obj, vma);
+
+	ret = exynos_drm_gem_mmap_buffer(exynos_gem_obj, vma);
+	if (ret)
+		goto err_close_vm;
+
+	return ret;
+
+err_close_vm:
+	drm_gem_vm_close(vma);
+	drm_gem_free_mmap_offset(obj);
+
+	return ret;
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.h
new file mode 100644
index 000000000..308173cb4
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -0,0 +1,182 @@
+/* exynos_drm_gem.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authoer: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_GEM_H_
+#define _EXYNOS_DRM_GEM_H_
+
+#include <drm/drm_gem.h>
+
+#define to_exynos_gem_obj(x)	container_of(x,\
+			struct exynos_drm_gem_obj, base)
+
+#define IS_NONCONTIG_BUFFER(f)		(f & EXYNOS_BO_NONCONTIG)
+
+/*
+ * exynos drm gem buffer structure.
+ *
+ * @cookie: cookie returned by dma_alloc_attrs
+ * @kvaddr: kernel virtual address to allocated memory region.
+ * *userptr: user space address.
+ * @dma_addr: bus address(accessed by dma) to allocated memory region.
+ *	- this address could be physical address without IOMMU and
+ *	device address with IOMMU.
+ * @write: whether pages will be written to by the caller.
+ * @pages: Array of backing pages.
+ * @sgt: sg table to transfer page data.
+ * @size: size of allocated memory region.
+ * @pfnmap: indicate whether memory region from userptr is mmaped with
+ *	VM_PFNMAP or not.
+ */
+struct exynos_drm_gem_buf {
+	void 			*cookie;
+	void __iomem		*kvaddr;
+	unsigned long		userptr;
+	dma_addr_t		dma_addr;
+	struct dma_attrs	dma_attrs;
+	unsigned int		write;
+	struct page		**pages;
+	struct sg_table		*sgt;
+	unsigned long		size;
+	bool			pfnmap;
+};
+
+/*
+ * exynos drm buffer structure.
+ *
+ * @base: a gem object.
+ *	- a new handle to this gem object would be created
+ *	by drm_gem_handle_create().
+ * @buffer: a pointer to exynos_drm_gem_buffer object.
+ *	- contain the information to memory region allocated
+ *	by user request or at framebuffer creation.
+ *	continuous memory region allocated by user request
+ *	or at framebuffer creation.
+ * @size: size requested from user, in bytes and this size is aligned
+ *	in page unit.
+ * @vma: a pointer to vm_area.
+ * @flags: indicate memory type to allocated buffer and cache attruibute.
+ *
+ * P.S. this object would be transferred to user as kms_bo.handle so
+ *	user can access the buffer through kms_bo.handle.
+ */
+struct exynos_drm_gem_obj {
+	struct drm_gem_object		base;
+	struct exynos_drm_gem_buf	*buffer;
+	unsigned long			size;
+	struct vm_area_struct		*vma;
+	unsigned int			flags;
+};
+
+struct page **exynos_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
+
+/* destroy a buffer with gem object */
+void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj);
+
+/* create a private gem object and initialize it. */
+struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+						      unsigned long size);
+
+/* create a new buffer with gem object */
+struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
+						unsigned int flags,
+						unsigned long size);
+
+/*
+ * request gem object creation and buffer allocation as the size
+ * that it is calculated with framebuffer information such as width,
+ * height and bpp.
+ */
+int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data,
+				struct drm_file *file_priv);
+
+/*
+ * get dma address from gem handle and this function could be used for
+ * other drivers such as 2d/3d acceleration drivers.
+ * with this function call, gem object reference count would be increased.
+ */
+dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
+					unsigned int gem_handle,
+					struct drm_file *filp);
+
+/*
+ * put dma address from gem handle and this function could be used for
+ * other drivers such as 2d/3d acceleration drivers.
+ * with this function call, gem object reference count would be decreased.
+ */
+void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
+					unsigned int gem_handle,
+					struct drm_file *filp);
+
+/* map user space allocated by malloc to pages. */
+int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data,
+				      struct drm_file *file_priv);
+
+/* get buffer information to memory region allocated by gem. */
+int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+				      struct drm_file *file_priv);
+
+/* get buffer size to gem handle. */
+unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
+						unsigned int gem_handle,
+						struct drm_file *file_priv);
+
+/* free gem object. */
+void exynos_drm_gem_free_object(struct drm_gem_object *gem_obj);
+
+/* create memory region for drm framebuffer. */
+int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
+			       struct drm_device *dev,
+			       struct drm_mode_create_dumb *args);
+
+/* map memory region for drm framebuffer to user space. */
+int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
+				   struct drm_device *dev, uint32_t handle,
+				   uint64_t *offset);
+
+/* page fault handler and mmap fault address(virtual) to physical memory. */
+int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+
+/* set vm_flags and we can change the vm attribute to other one at here. */
+int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+
+static inline int vma_is_io(struct vm_area_struct *vma)
+{
+	return !!(vma->vm_flags & (VM_IO | VM_PFNMAP));
+}
+
+/* get a copy of a virtual memory region. */
+struct vm_area_struct *exynos_gem_get_vma(struct vm_area_struct *vma);
+
+/* release a userspace virtual memory area. */
+void exynos_gem_put_vma(struct vm_area_struct *vma);
+
+/* get pages from user space. */
+int exynos_gem_get_pages_from_userptr(unsigned long start,
+						unsigned int npages,
+						struct page **pages,
+						struct vm_area_struct *vma);
+
+/* drop the reference to pages. */
+void exynos_gem_put_pages_to_userptr(struct page **pages,
+					unsigned int npages,
+					struct vm_area_struct *vma);
+
+/* map sgt with dma region. */
+int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev,
+				struct sg_table *sgt,
+				enum dma_data_direction dir);
+
+/* unmap sgt from dma region. */
+void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev,
+				struct sg_table *sgt,
+				enum dma_data_direction dir);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.c
new file mode 100644
index 000000000..8040ed2a8
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -0,0 +1,1795 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <plat/map-base.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "regs-gsc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_gsc.h"
+
+/*
+ * GSC stands for General SCaler and
+ * supports image scaler/rotator and input/output DMA operations.
+ * input DMA reads image data from the memory.
+ * output DMA writes image data to memory.
+ * GSC supports image rotation and image effect functions.
+ *
+ * M2M operation : supports crop/scale/rotation/csc so on.
+ * Memory ----> GSC H/W ----> Memory.
+ * Writeback operation : supports cloned screen with FIMD.
+ * FIMD ----> GSC H/W ----> Memory.
+ * Output operation : supports direct display using local path.
+ * Memory ----> GSC H/W ----> FIMD, Mixer.
+ */
+
+/*
+ * TODO
+ * 1. check suspend/resume api if needed.
+ * 2. need to check use case platform_device_id.
+ * 3. check src/dst size with, height.
+ * 4. added check_prepare api for right register.
+ * 5. need to add supported list in prop_list.
+ * 6. check prescaler/scaler optimization.
+ */
+
+#define GSC_MAX_DEVS	4
+#define GSC_MAX_SRC		4
+#define GSC_MAX_DST		16
+#define GSC_RESET_TIMEOUT	50
+#define GSC_BUF_STOP	1
+#define GSC_BUF_START	2
+#define GSC_REG_SZ		16
+#define GSC_WIDTH_ITU_709	1280
+#define GSC_SC_UP_MAX_RATIO		65536
+#define GSC_SC_DOWN_RATIO_7_8		74898
+#define GSC_SC_DOWN_RATIO_6_8		87381
+#define GSC_SC_DOWN_RATIO_5_8		104857
+#define GSC_SC_DOWN_RATIO_4_8		131072
+#define GSC_SC_DOWN_RATIO_3_8		174762
+#define GSC_SC_DOWN_RATIO_2_8		262144
+#define GSC_REFRESH_MIN	12
+#define GSC_REFRESH_MAX	60
+#define GSC_CROP_MAX	8192
+#define GSC_CROP_MIN	32
+#define GSC_SCALE_MAX	4224
+#define GSC_SCALE_MIN	32
+#define GSC_COEF_RATIO	7
+#define GSC_COEF_PHASE	9
+#define GSC_COEF_ATTR	16
+#define GSC_COEF_H_8T	8
+#define GSC_COEF_V_4T	4
+#define GSC_COEF_DEPTH	3
+
+#define get_gsc_context(dev)	platform_get_drvdata(to_platform_device(dev))
+#define get_ctx_from_ippdrv(ippdrv)	container_of(ippdrv,\
+					struct gsc_context, ippdrv);
+#define gsc_read(offset)		readl(ctx->regs + (offset))
+#define gsc_write(cfg, offset)	writel(cfg, ctx->regs + (offset))
+
+/*
+ * A structure of scaler.
+ *
+ * @range: narrow, wide.
+ * @pre_shfactor: pre sclaer shift factor.
+ * @pre_hratio: horizontal ratio of the prescaler.
+ * @pre_vratio: vertical ratio of the prescaler.
+ * @main_hratio: the main scaler's horizontal ratio.
+ * @main_vratio: the main scaler's vertical ratio.
+ */
+struct gsc_scaler {
+	bool	range;
+	u32	pre_shfactor;
+	u32	pre_hratio;
+	u32	pre_vratio;
+	unsigned long main_hratio;
+	unsigned long main_vratio;
+};
+
+/*
+ * A structure of scaler capability.
+ *
+ * find user manual 49.2 features.
+ * @tile_w: tile mode or rotation width.
+ * @tile_h: tile mode or rotation height.
+ * @w: other cases width.
+ * @h: other cases height.
+ */
+struct gsc_capability {
+	/* tile or rotation */
+	u32	tile_w;
+	u32	tile_h;
+	/* other cases */
+	u32	w;
+	u32	h;
+};
+
+/*
+ * A structure of gsc context.
+ *
+ * @ippdrv: prepare initialization using ippdrv.
+ * @regs_res: register resources.
+ * @regs: memory mapped io registers.
+ * @lock: locking of operations.
+ * @gsc_clk: gsc gate clock.
+ * @sc: scaler infomations.
+ * @id: gsc id.
+ * @irq: irq number.
+ * @rotation: supports rotation of src.
+ * @suspended: qos operations.
+ */
+struct gsc_context {
+	struct exynos_drm_ippdrv	ippdrv;
+	struct resource	*regs_res;
+	void __iomem	*regs;
+	struct mutex	lock;
+	struct clk	*gsc_clk;
+	struct gsc_scaler	sc;
+	int	id;
+	int	irq;
+	bool	rotation;
+	bool	suspended;
+};
+
+/* 8-tap Filter Coefficient */
+static const int h_coef_8t[GSC_COEF_RATIO][GSC_COEF_ATTR][GSC_COEF_H_8T] = {
+	{	/* Ratio <= 65536 (~8:8) */
+		{  0,  0,   0, 128,   0,   0,  0,  0 },
+		{ -1,  2,  -6, 127,   7,  -2,  1,  0 },
+		{ -1,  4, -12, 125,  16,  -5,  1,  0 },
+		{ -1,  5, -15, 120,  25,  -8,  2,  0 },
+		{ -1,  6, -18, 114,  35, -10,  3, -1 },
+		{ -1,  6, -20, 107,  46, -13,  4, -1 },
+		{ -2,  7, -21,  99,  57, -16,  5, -1 },
+		{ -1,  6, -20,  89,  68, -18,  5, -1 },
+		{ -1,  6, -20,  79,  79, -20,  6, -1 },
+		{ -1,  5, -18,  68,  89, -20,  6, -1 },
+		{ -1,  5, -16,  57,  99, -21,  7, -2 },
+		{ -1,  4, -13,  46, 107, -20,  6, -1 },
+		{ -1,  3, -10,  35, 114, -18,  6, -1 },
+		{  0,  2,  -8,  25, 120, -15,  5, -1 },
+		{  0,  1,  -5,  16, 125, -12,  4, -1 },
+		{  0,  1,  -2,   7, 127,  -6,  2, -1 }
+	}, {	/* 65536 < Ratio <= 74898 (~8:7) */
+		{  3, -8,  14, 111,  13,  -8,  3,  0 },
+		{  2, -6,   7, 112,  21, -10,  3, -1 },
+		{  2, -4,   1, 110,  28, -12,  4, -1 },
+		{  1, -2,  -3, 106,  36, -13,  4, -1 },
+		{  1, -1,  -7, 103,  44, -15,  4, -1 },
+		{  1,  1, -11,  97,  53, -16,  4, -1 },
+		{  0,  2, -13,  91,  61, -16,  4, -1 },
+		{  0,  3, -15,  85,  69, -17,  4, -1 },
+		{  0,  3, -16,  77,  77, -16,  3,  0 },
+		{ -1,  4, -17,  69,  85, -15,  3,  0 },
+		{ -1,  4, -16,  61,  91, -13,  2,  0 },
+		{ -1,  4, -16,  53,  97, -11,  1,  1 },
+		{ -1,  4, -15,  44, 103,  -7, -1,  1 },
+		{ -1,  4, -13,  36, 106,  -3, -2,  1 },
+		{ -1,  4, -12,  28, 110,   1, -4,  2 },
+		{ -1,  3, -10,  21, 112,   7, -6,  2 }
+	}, {	/* 74898 < Ratio <= 87381 (~8:6) */
+		{ 2, -11,  25,  96, 25, -11,   2,  0 },
+		{ 2, -10,  19,  96, 31, -12,   2,  0 },
+		{ 2,  -9,  14,  94, 37, -12,   2,  0 },
+		{ 2,  -8,  10,  92, 43, -12,   1,  0 },
+		{ 2,  -7,   5,  90, 49, -12,   1,  0 },
+		{ 2,  -5,   1,  86, 55, -12,   0,  1 },
+		{ 2,  -4,  -2,  82, 61, -11,  -1,  1 },
+		{ 1,  -3,  -5,  77, 67,  -9,  -1,  1 },
+		{ 1,  -2,  -7,  72, 72,  -7,  -2,  1 },
+		{ 1,  -1,  -9,  67, 77,  -5,  -3,  1 },
+		{ 1,  -1, -11,  61, 82,  -2,  -4,  2 },
+		{ 1,   0, -12,  55, 86,   1,  -5,  2 },
+		{ 0,   1, -12,  49, 90,   5,  -7,  2 },
+		{ 0,   1, -12,  43, 92,  10,  -8,  2 },
+		{ 0,   2, -12,  37, 94,  14,  -9,  2 },
+		{ 0,   2, -12,  31, 96,  19, -10,  2 }
+	}, {	/* 87381 < Ratio <= 104857 (~8:5) */
+		{ -1,  -8, 33,  80, 33,  -8,  -1,  0 },
+		{ -1,  -8, 28,  80, 37,  -7,  -2,  1 },
+		{  0,  -8, 24,  79, 41,  -7,  -2,  1 },
+		{  0,  -8, 20,  78, 46,  -6,  -3,  1 },
+		{  0,  -8, 16,  76, 50,  -4,  -3,  1 },
+		{  0,  -7, 13,  74, 54,  -3,  -4,  1 },
+		{  1,  -7, 10,  71, 58,  -1,  -5,  1 },
+		{  1,  -6,  6,  68, 62,   1,  -5,  1 },
+		{  1,  -6,  4,  65, 65,   4,  -6,  1 },
+		{  1,  -5,  1,  62, 68,   6,  -6,  1 },
+		{  1,  -5, -1,  58, 71,  10,  -7,  1 },
+		{  1,  -4, -3,  54, 74,  13,  -7,  0 },
+		{  1,  -3, -4,  50, 76,  16,  -8,  0 },
+		{  1,  -3, -6,  46, 78,  20,  -8,  0 },
+		{  1,  -2, -7,  41, 79,  24,  -8,  0 },
+		{  1,  -2, -7,  37, 80,  28,  -8, -1 }
+	}, {	/* 104857 < Ratio <= 131072 (~8:4) */
+		{ -3,   0, 35,  64, 35,   0,  -3,  0 },
+		{ -3,  -1, 32,  64, 38,   1,  -3,  0 },
+		{ -2,  -2, 29,  63, 41,   2,  -3,  0 },
+		{ -2,  -3, 27,  63, 43,   4,  -4,  0 },
+		{ -2,  -3, 24,  61, 46,   6,  -4,  0 },
+		{ -2,  -3, 21,  60, 49,   7,  -4,  0 },
+		{ -1,  -4, 19,  59, 51,   9,  -4, -1 },
+		{ -1,  -4, 16,  57, 53,  12,  -4, -1 },
+		{ -1,  -4, 14,  55, 55,  14,  -4, -1 },
+		{ -1,  -4, 12,  53, 57,  16,  -4, -1 },
+		{ -1,  -4,  9,  51, 59,  19,  -4, -1 },
+		{  0,  -4,  7,  49, 60,  21,  -3, -2 },
+		{  0,  -4,  6,  46, 61,  24,  -3, -2 },
+		{  0,  -4,  4,  43, 63,  27,  -3, -2 },
+		{  0,  -3,  2,  41, 63,  29,  -2, -2 },
+		{  0,  -3,  1,  38, 64,  32,  -1, -3 }
+	}, {	/* 131072 < Ratio <= 174762 (~8:3) */
+		{ -1,   8, 33,  48, 33,   8,  -1,  0 },
+		{ -1,   7, 31,  49, 35,   9,  -1, -1 },
+		{ -1,   6, 30,  49, 36,  10,  -1, -1 },
+		{ -1,   5, 28,  48, 38,  12,  -1, -1 },
+		{ -1,   4, 26,  48, 39,  13,   0, -1 },
+		{ -1,   3, 24,  47, 41,  15,   0, -1 },
+		{ -1,   2, 23,  47, 42,  16,   0, -1 },
+		{ -1,   2, 21,  45, 43,  18,   1, -1 },
+		{ -1,   1, 19,  45, 45,  19,   1, -1 },
+		{ -1,   1, 18,  43, 45,  21,   2, -1 },
+		{ -1,   0, 16,  42, 47,  23,   2, -1 },
+		{ -1,   0, 15,  41, 47,  24,   3, -1 },
+		{ -1,   0, 13,  39, 48,  26,   4, -1 },
+		{ -1,  -1, 12,  38, 48,  28,   5, -1 },
+		{ -1,  -1, 10,  36, 49,  30,   6, -1 },
+		{ -1,  -1,  9,  35, 49,  31,   7, -1 }
+	}, {	/* 174762 < Ratio <= 262144 (~8:2) */
+		{  2,  13, 30,  38, 30,  13,   2,  0 },
+		{  2,  12, 29,  38, 30,  14,   3,  0 },
+		{  2,  11, 28,  38, 31,  15,   3,  0 },
+		{  2,  10, 26,  38, 32,  16,   4,  0 },
+		{  1,  10, 26,  37, 33,  17,   4,  0 },
+		{  1,   9, 24,  37, 34,  18,   5,  0 },
+		{  1,   8, 24,  37, 34,  19,   5,  0 },
+		{  1,   7, 22,  36, 35,  20,   6,  1 },
+		{  1,   6, 21,  36, 36,  21,   6,  1 },
+		{  1,   6, 20,  35, 36,  22,   7,  1 },
+		{  0,   5, 19,  34, 37,  24,   8,  1 },
+		{  0,   5, 18,  34, 37,  24,   9,  1 },
+		{  0,   4, 17,  33, 37,  26,  10,  1 },
+		{  0,   4, 16,  32, 38,  26,  10,  2 },
+		{  0,   3, 15,  31, 38,  28,  11,  2 },
+		{  0,   3, 14,  30, 38,  29,  12,  2 }
+	}
+};
+
+/* 4-tap Filter Coefficient */
+static const int v_coef_4t[GSC_COEF_RATIO][GSC_COEF_ATTR][GSC_COEF_V_4T] = {
+	{	/* Ratio <= 65536 (~8:8) */
+		{  0, 128,   0,  0 },
+		{ -4, 127,   5,  0 },
+		{ -6, 124,  11, -1 },
+		{ -8, 118,  19, -1 },
+		{ -8, 111,  27, -2 },
+		{ -8, 102,  37, -3 },
+		{ -8,  92,  48, -4 },
+		{ -7,  81,  59, -5 },
+		{ -6,  70,  70, -6 },
+		{ -5,  59,  81, -7 },
+		{ -4,  48,  92, -8 },
+		{ -3,  37, 102, -8 },
+		{ -2,  27, 111, -8 },
+		{ -1,  19, 118, -8 },
+		{ -1,  11, 124, -6 },
+		{  0,   5, 127, -4 }
+	}, {	/* 65536 < Ratio <= 74898 (~8:7) */
+		{  8, 112,   8,  0 },
+		{  4, 111,  14, -1 },
+		{  1, 109,  20, -2 },
+		{ -2, 105,  27, -2 },
+		{ -3, 100,  34, -3 },
+		{ -5,  93,  43, -3 },
+		{ -5,  86,  51, -4 },
+		{ -5,  77,  60, -4 },
+		{ -5,  69,  69, -5 },
+		{ -4,  60,  77, -5 },
+		{ -4,  51,  86, -5 },
+		{ -3,  43,  93, -5 },
+		{ -3,  34, 100, -3 },
+		{ -2,  27, 105, -2 },
+		{ -2,  20, 109,  1 },
+		{ -1,  14, 111,  4 }
+	}, {	/* 74898 < Ratio <= 87381 (~8:6) */
+		{ 16,  96,  16,  0 },
+		{ 12,  97,  21, -2 },
+		{  8,  96,  26, -2 },
+		{  5,  93,  32, -2 },
+		{  2,  89,  39, -2 },
+		{  0,  84,  46, -2 },
+		{ -1,  79,  53, -3 },
+		{ -2,  73,  59, -2 },
+		{ -2,  66,  66, -2 },
+		{ -2,  59,  73, -2 },
+		{ -3,  53,  79, -1 },
+		{ -2,  46,  84,  0 },
+		{ -2,  39,  89,  2 },
+		{ -2,  32,  93,  5 },
+		{ -2,  26,  96,  8 },
+		{ -2,  21,  97, 12 }
+	}, {	/* 87381 < Ratio <= 104857 (~8:5) */
+		{ 22,  84,  22,  0 },
+		{ 18,  85,  26, -1 },
+		{ 14,  84,  31, -1 },
+		{ 11,  82,  36, -1 },
+		{  8,  79,  42, -1 },
+		{  6,  76,  47, -1 },
+		{  4,  72,  52,  0 },
+		{  2,  68,  58,  0 },
+		{  1,  63,  63,  1 },
+		{  0,  58,  68,  2 },
+		{  0,  52,  72,  4 },
+		{ -1,  47,  76,  6 },
+		{ -1,  42,  79,  8 },
+		{ -1,  36,  82, 11 },
+		{ -1,  31,  84, 14 },
+		{ -1,  26,  85, 18 }
+	}, {	/* 104857 < Ratio <= 131072 (~8:4) */
+		{ 26,  76,  26,  0 },
+		{ 22,  76,  30,  0 },
+		{ 19,  75,  34,  0 },
+		{ 16,  73,  38,  1 },
+		{ 13,  71,  43,  1 },
+		{ 10,  69,  47,  2 },
+		{  8,  66,  51,  3 },
+		{  6,  63,  55,  4 },
+		{  5,  59,  59,  5 },
+		{  4,  55,  63,  6 },
+		{  3,  51,  66,  8 },
+		{  2,  47,  69, 10 },
+		{  1,  43,  71, 13 },
+		{  1,  38,  73, 16 },
+		{  0,  34,  75, 19 },
+		{  0,  30,  76, 22 }
+	}, {	/* 131072 < Ratio <= 174762 (~8:3) */
+		{ 29,  70,  29,  0 },
+		{ 26,  68,  32,  2 },
+		{ 23,  67,  36,  2 },
+		{ 20,  66,  39,  3 },
+		{ 17,  65,  43,  3 },
+		{ 15,  63,  46,  4 },
+		{ 12,  61,  50,  5 },
+		{ 10,  58,  53,  7 },
+		{  8,  56,  56,  8 },
+		{  7,  53,  58, 10 },
+		{  5,  50,  61, 12 },
+		{  4,  46,  63, 15 },
+		{  3,  43,  65, 17 },
+		{  3,  39,  66, 20 },
+		{  2,  36,  67, 23 },
+		{  2,  32,  68, 26 }
+	}, {	/* 174762 < Ratio <= 262144 (~8:2) */
+		{ 32,  64,  32,  0 },
+		{ 28,  63,  34,  3 },
+		{ 25,  62,  37,  4 },
+		{ 22,  62,  40,  4 },
+		{ 19,  61,  43,  5 },
+		{ 17,  59,  46,  6 },
+		{ 15,  58,  48,  7 },
+		{ 13,  55,  51,  9 },
+		{ 11,  53,  53, 11 },
+		{  9,  51,  55, 13 },
+		{  7,  48,  58, 15 },
+		{  6,  46,  59, 17 },
+		{  5,  43,  61, 19 },
+		{  4,  40,  62, 22 },
+		{  4,  37,  62, 25 },
+		{  3,  34,  63, 28 }
+	}
+};
+
+static int gsc_sw_reset(struct gsc_context *ctx)
+{
+	u32 cfg;
+	int count = GSC_RESET_TIMEOUT;
+
+	/* s/w reset */
+	cfg = (GSC_SW_RESET_SRESET);
+	gsc_write(cfg, GSC_SW_RESET);
+
+	/* wait s/w reset complete */
+	while (count--) {
+		cfg = gsc_read(GSC_SW_RESET);
+		if (!cfg)
+			break;
+		usleep_range(1000, 2000);
+	}
+
+	if (cfg) {
+		DRM_ERROR("failed to reset gsc h/w.\n");
+		return -EBUSY;
+	}
+
+	/* reset sequence */
+	cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+	cfg |= (GSC_IN_BASE_ADDR_MASK |
+		GSC_IN_BASE_ADDR_PINGPONG(0));
+	gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
+	gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
+	gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
+
+	cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+	cfg |= (GSC_OUT_BASE_ADDR_MASK |
+		GSC_OUT_BASE_ADDR_PINGPONG(0));
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
+
+	return 0;
+}
+
+static void gsc_set_gscblk_fimd_wb(struct gsc_context *ctx, bool enable)
+{
+	u32 gscblk_cfg;
+
+	gscblk_cfg = readl(SYSREG_GSCBLK_CFG1);
+
+	if (enable)
+		gscblk_cfg |= GSC_BLK_DISP1WB_DEST(ctx->id) |
+				GSC_BLK_GSCL_WB_IN_SRC_SEL(ctx->id) |
+				GSC_BLK_SW_RESET_WB_DEST(ctx->id);
+	else
+		gscblk_cfg |= GSC_BLK_PXLASYNC_LO_MASK_WB(ctx->id);
+
+	writel(gscblk_cfg, SYSREG_GSCBLK_CFG1);
+}
+
+static void gsc_handle_irq(struct gsc_context *ctx, bool enable,
+		bool overflow, bool done)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("enable[%d]overflow[%d]level[%d]\n",
+			enable, overflow, done);
+
+	cfg = gsc_read(GSC_IRQ);
+	cfg |= (GSC_IRQ_OR_MASK | GSC_IRQ_FRMDONE_MASK);
+
+	if (enable)
+		cfg |= GSC_IRQ_ENABLE;
+	else
+		cfg &= ~GSC_IRQ_ENABLE;
+
+	if (overflow)
+		cfg &= ~GSC_IRQ_OR_MASK;
+	else
+		cfg |= GSC_IRQ_OR_MASK;
+
+	if (done)
+		cfg &= ~GSC_IRQ_FRMDONE_MASK;
+	else
+		cfg |= GSC_IRQ_FRMDONE_MASK;
+
+	gsc_write(cfg, GSC_IRQ);
+}
+
+
+static int gsc_src_set_fmt(struct device *dev, u32 fmt)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	cfg = gsc_read(GSC_IN_CON);
+	cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK |
+		 GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK |
+		 GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE |
+		 GSC_IN_CHROM_STRIDE_SEL_MASK | GSC_IN_RB_SWAP_MASK);
+
+	switch (fmt) {
+	case DRM_FORMAT_RGB565:
+		cfg |= GSC_IN_RGB565;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		cfg |= GSC_IN_XRGB8888;
+		break;
+	case DRM_FORMAT_BGRX8888:
+		cfg |= (GSC_IN_XRGB8888 | GSC_IN_RB_SWAP);
+		break;
+	case DRM_FORMAT_YUYV:
+		cfg |= (GSC_IN_YUV422_1P |
+			GSC_IN_YUV422_1P_ORDER_LSB_Y |
+			GSC_IN_CHROMA_ORDER_CBCR);
+		break;
+	case DRM_FORMAT_YVYU:
+		cfg |= (GSC_IN_YUV422_1P |
+			GSC_IN_YUV422_1P_ORDER_LSB_Y |
+			GSC_IN_CHROMA_ORDER_CRCB);
+		break;
+	case DRM_FORMAT_UYVY:
+		cfg |= (GSC_IN_YUV422_1P |
+			GSC_IN_YUV422_1P_OEDER_LSB_C |
+			GSC_IN_CHROMA_ORDER_CBCR);
+		break;
+	case DRM_FORMAT_VYUY:
+		cfg |= (GSC_IN_YUV422_1P |
+			GSC_IN_YUV422_1P_OEDER_LSB_C |
+			GSC_IN_CHROMA_ORDER_CRCB);
+		break;
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV61:
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB |
+			GSC_IN_YUV420_2P);
+		break;
+	case DRM_FORMAT_YUV422:
+		cfg |= GSC_IN_YUV422_3P;
+		break;
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+		cfg |= GSC_IN_YUV420_3P;
+		break;
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
+			GSC_IN_YUV420_2P);
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+		return -EINVAL;
+	}
+
+	gsc_write(cfg, GSC_IN_CON);
+
+	return 0;
+}
+
+static int gsc_src_set_transf(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+	cfg = gsc_read(GSC_IN_CON);
+	cfg &= ~GSC_IN_ROT_MASK;
+
+	switch (degree) {
+	case EXYNOS_DRM_DEGREE_0:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= GSC_IN_ROT_XFLIP;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= GSC_IN_ROT_YFLIP;
+		break;
+	case EXYNOS_DRM_DEGREE_90:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= GSC_IN_ROT_90_XFLIP;
+		else if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= GSC_IN_ROT_90_YFLIP;
+		else
+			cfg |= GSC_IN_ROT_90;
+		break;
+	case EXYNOS_DRM_DEGREE_180:
+		cfg |= GSC_IN_ROT_180;
+		break;
+	case EXYNOS_DRM_DEGREE_270:
+		cfg |= GSC_IN_ROT_270;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+		return -EINVAL;
+	}
+
+	gsc_write(cfg, GSC_IN_CON);
+
+	ctx->rotation = cfg &
+		(GSC_IN_ROT_90 | GSC_IN_ROT_270) ? 1 : 0;
+	*swap = ctx->rotation;
+
+	return 0;
+}
+
+static int gsc_src_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct drm_exynos_pos img_pos = *pos;
+	struct gsc_scaler *sc = &ctx->sc;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("swap[%d]x[%d]y[%d]w[%d]h[%d]\n",
+		swap, pos->x, pos->y, pos->w, pos->h);
+
+	if (swap) {
+		img_pos.w = pos->h;
+		img_pos.h = pos->w;
+	}
+
+	/* pixel offset */
+	cfg = (GSC_SRCIMG_OFFSET_X(img_pos.x) |
+		GSC_SRCIMG_OFFSET_Y(img_pos.y));
+	gsc_write(cfg, GSC_SRCIMG_OFFSET);
+
+	/* cropped size */
+	cfg = (GSC_CROPPED_WIDTH(img_pos.w) |
+		GSC_CROPPED_HEIGHT(img_pos.h));
+	gsc_write(cfg, GSC_CROPPED_SIZE);
+
+	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", sz->hsize, sz->vsize);
+
+	/* original size */
+	cfg = gsc_read(GSC_SRCIMG_SIZE);
+	cfg &= ~(GSC_SRCIMG_HEIGHT_MASK |
+		GSC_SRCIMG_WIDTH_MASK);
+
+	cfg |= (GSC_SRCIMG_WIDTH(sz->hsize) |
+		GSC_SRCIMG_HEIGHT(sz->vsize));
+
+	gsc_write(cfg, GSC_SRCIMG_SIZE);
+
+	cfg = gsc_read(GSC_IN_CON);
+	cfg &= ~GSC_IN_RGB_TYPE_MASK;
+
+	DRM_DEBUG_KMS("width[%d]range[%d]\n", pos->w, sc->range);
+
+	if (pos->w >= GSC_WIDTH_ITU_709)
+		if (sc->range)
+			cfg |= GSC_IN_RGB_HD_WIDE;
+		else
+			cfg |= GSC_IN_RGB_HD_NARROW;
+	else
+		if (sc->range)
+			cfg |= GSC_IN_RGB_SD_WIDE;
+		else
+			cfg |= GSC_IN_RGB_SD_NARROW;
+
+	gsc_write(cfg, GSC_IN_CON);
+
+	return 0;
+}
+
+static int gsc_src_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	bool masked;
+	u32 cfg;
+	u32 mask = 0x00000001 << buf_id;
+
+	DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
+
+	/* mask register set */
+	cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		masked = false;
+		break;
+	case IPP_BUF_DEQUEUE:
+		masked = true;
+		break;
+	default:
+		dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
+		return -EINVAL;
+	}
+
+	/* sequence id */
+	cfg &= ~mask;
+	cfg |= masked << buf_id;
+	gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
+	gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
+	gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
+
+	return 0;
+}
+
+static int gsc_src_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EFAULT;
+	}
+
+	property = &c_node->property;
+
+	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+		property->prop_id, buf_id, buf_type);
+
+	if (buf_id > GSC_MAX_SRC) {
+		dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+		return -EINVAL;
+	}
+
+	/* address register set */
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
+			GSC_IN_BASE_ADDR_Y(buf_id));
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
+			GSC_IN_BASE_ADDR_CB(buf_id));
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
+			GSC_IN_BASE_ADDR_CR(buf_id));
+		break;
+	case IPP_BUF_DEQUEUE:
+		gsc_write(0x0, GSC_IN_BASE_ADDR_Y(buf_id));
+		gsc_write(0x0, GSC_IN_BASE_ADDR_CB(buf_id));
+		gsc_write(0x0, GSC_IN_BASE_ADDR_CR(buf_id));
+		break;
+	default:
+		/* bypass */
+		break;
+	}
+
+	return gsc_src_set_buf_seq(ctx, buf_id, buf_type);
+}
+
+static struct exynos_drm_ipp_ops gsc_src_ops = {
+	.set_fmt = gsc_src_set_fmt,
+	.set_transf = gsc_src_set_transf,
+	.set_size = gsc_src_set_size,
+	.set_addr = gsc_src_set_addr,
+};
+
+static int gsc_dst_set_fmt(struct device *dev, u32 fmt)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+	cfg = gsc_read(GSC_OUT_CON);
+	cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK |
+		 GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK |
+		 GSC_OUT_CHROM_STRIDE_SEL_MASK | GSC_OUT_RB_SWAP_MASK |
+		 GSC_OUT_GLOBAL_ALPHA_MASK);
+
+	switch (fmt) {
+	case DRM_FORMAT_RGB565:
+		cfg |= GSC_OUT_RGB565;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		cfg |= GSC_OUT_XRGB8888;
+		break;
+	case DRM_FORMAT_BGRX8888:
+		cfg |= (GSC_OUT_XRGB8888 | GSC_OUT_RB_SWAP);
+		break;
+	case DRM_FORMAT_YUYV:
+		cfg |= (GSC_OUT_YUV422_1P |
+			GSC_OUT_YUV422_1P_ORDER_LSB_Y |
+			GSC_OUT_CHROMA_ORDER_CBCR);
+		break;
+	case DRM_FORMAT_YVYU:
+		cfg |= (GSC_OUT_YUV422_1P |
+			GSC_OUT_YUV422_1P_ORDER_LSB_Y |
+			GSC_OUT_CHROMA_ORDER_CRCB);
+		break;
+	case DRM_FORMAT_UYVY:
+		cfg |= (GSC_OUT_YUV422_1P |
+			GSC_OUT_YUV422_1P_OEDER_LSB_C |
+			GSC_OUT_CHROMA_ORDER_CBCR);
+		break;
+	case DRM_FORMAT_VYUY:
+		cfg |= (GSC_OUT_YUV422_1P |
+			GSC_OUT_YUV422_1P_OEDER_LSB_C |
+			GSC_OUT_CHROMA_ORDER_CRCB);
+		break;
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV61:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_2P);
+		break;
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+		cfg |= GSC_OUT_YUV420_3P;
+		break;
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
+			GSC_OUT_YUV420_2P);
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+		return -EINVAL;
+	}
+
+	gsc_write(cfg, GSC_OUT_CON);
+
+	return 0;
+}
+
+static int gsc_dst_set_transf(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+	cfg = gsc_read(GSC_IN_CON);
+	cfg &= ~GSC_IN_ROT_MASK;
+
+	switch (degree) {
+	case EXYNOS_DRM_DEGREE_0:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= GSC_IN_ROT_XFLIP;
+		if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= GSC_IN_ROT_YFLIP;
+		break;
+	case EXYNOS_DRM_DEGREE_90:
+		if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+			cfg |= GSC_IN_ROT_90_XFLIP;
+		else if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+			cfg |= GSC_IN_ROT_90_YFLIP;
+		else
+			cfg |= GSC_IN_ROT_90;
+		break;
+	case EXYNOS_DRM_DEGREE_180:
+		cfg |= GSC_IN_ROT_180;
+		break;
+	case EXYNOS_DRM_DEGREE_270:
+		cfg |= GSC_IN_ROT_270;
+		break;
+	default:
+		dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+		return -EINVAL;
+	}
+
+	gsc_write(cfg, GSC_IN_CON);
+
+	ctx->rotation = cfg &
+		(GSC_IN_ROT_90 | GSC_IN_ROT_270) ? 1 : 0;
+	*swap = ctx->rotation;
+
+	return 0;
+}
+
+static int gsc_get_ratio_shift(u32 src, u32 dst, u32 *ratio)
+{
+	DRM_DEBUG_KMS("src[%d]dst[%d]\n", src, dst);
+
+	if (src >= dst * 8) {
+		DRM_ERROR("failed to make ratio and shift.\n");
+		return -EINVAL;
+	} else if (src >= dst * 4)
+		*ratio = 4;
+	else if (src >= dst * 2)
+		*ratio = 2;
+	else
+		*ratio = 1;
+
+	return 0;
+}
+
+static void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *shfactor)
+{
+	if (hratio == 4 && vratio == 4)
+		*shfactor = 4;
+	else if ((hratio == 4 && vratio == 2) ||
+		 (hratio == 2 && vratio == 4))
+		*shfactor = 3;
+	else if ((hratio == 4 && vratio == 1) ||
+		 (hratio == 1 && vratio == 4) ||
+		 (hratio == 2 && vratio == 2))
+		*shfactor = 2;
+	else if (hratio == 1 && vratio == 1)
+		*shfactor = 0;
+	else
+		*shfactor = 1;
+}
+
+static int gsc_set_prescaler(struct gsc_context *ctx, struct gsc_scaler *sc,
+		struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	u32 cfg;
+	u32 src_w, src_h, dst_w, dst_h;
+	int ret = 0;
+
+	src_w = src->w;
+	src_h = src->h;
+
+	if (ctx->rotation) {
+		dst_w = dst->h;
+		dst_h = dst->w;
+	} else {
+		dst_w = dst->w;
+		dst_h = dst->h;
+	}
+
+	ret = gsc_get_ratio_shift(src_w, dst_w, &sc->pre_hratio);
+	if (ret) {
+		dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
+		return ret;
+	}
+
+	ret = gsc_get_ratio_shift(src_h, dst_h, &sc->pre_vratio);
+	if (ret) {
+		dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
+		return ret;
+	}
+
+	DRM_DEBUG_KMS("pre_hratio[%d]pre_vratio[%d]\n",
+		sc->pre_hratio, sc->pre_vratio);
+
+	sc->main_hratio = (src_w << 16) / dst_w;
+	sc->main_vratio = (src_h << 16) / dst_h;
+
+	DRM_DEBUG_KMS("main_hratio[%ld]main_vratio[%ld]\n",
+		sc->main_hratio, sc->main_vratio);
+
+	gsc_get_prescaler_shfactor(sc->pre_hratio, sc->pre_vratio,
+		&sc->pre_shfactor);
+
+	DRM_DEBUG_KMS("pre_shfactor[%d]\n", sc->pre_shfactor);
+
+	cfg = (GSC_PRESC_SHFACTOR(sc->pre_shfactor) |
+		GSC_PRESC_H_RATIO(sc->pre_hratio) |
+		GSC_PRESC_V_RATIO(sc->pre_vratio));
+	gsc_write(cfg, GSC_PRE_SCALE_RATIO);
+
+	return ret;
+}
+
+static void gsc_set_h_coef(struct gsc_context *ctx, unsigned long main_hratio)
+{
+	int i, j, k, sc_ratio;
+
+	if (main_hratio <= GSC_SC_UP_MAX_RATIO)
+		sc_ratio = 0;
+	else if (main_hratio <= GSC_SC_DOWN_RATIO_7_8)
+		sc_ratio = 1;
+	else if (main_hratio <= GSC_SC_DOWN_RATIO_6_8)
+		sc_ratio = 2;
+	else if (main_hratio <= GSC_SC_DOWN_RATIO_5_8)
+		sc_ratio = 3;
+	else if (main_hratio <= GSC_SC_DOWN_RATIO_4_8)
+		sc_ratio = 4;
+	else if (main_hratio <= GSC_SC_DOWN_RATIO_3_8)
+		sc_ratio = 5;
+	else
+		sc_ratio = 6;
+
+	for (i = 0; i < GSC_COEF_PHASE; i++)
+		for (j = 0; j < GSC_COEF_H_8T; j++)
+			for (k = 0; k < GSC_COEF_DEPTH; k++)
+				gsc_write(h_coef_8t[sc_ratio][i][j],
+					GSC_HCOEF(i, j, k));
+}
+
+static void gsc_set_v_coef(struct gsc_context *ctx, unsigned long main_vratio)
+{
+	int i, j, k, sc_ratio;
+
+	if (main_vratio <= GSC_SC_UP_MAX_RATIO)
+		sc_ratio = 0;
+	else if (main_vratio <= GSC_SC_DOWN_RATIO_7_8)
+		sc_ratio = 1;
+	else if (main_vratio <= GSC_SC_DOWN_RATIO_6_8)
+		sc_ratio = 2;
+	else if (main_vratio <= GSC_SC_DOWN_RATIO_5_8)
+		sc_ratio = 3;
+	else if (main_vratio <= GSC_SC_DOWN_RATIO_4_8)
+		sc_ratio = 4;
+	else if (main_vratio <= GSC_SC_DOWN_RATIO_3_8)
+		sc_ratio = 5;
+	else
+		sc_ratio = 6;
+
+	for (i = 0; i < GSC_COEF_PHASE; i++)
+		for (j = 0; j < GSC_COEF_V_4T; j++)
+			for (k = 0; k < GSC_COEF_DEPTH; k++)
+				gsc_write(v_coef_4t[sc_ratio][i][j],
+					GSC_VCOEF(i, j, k));
+}
+
+static void gsc_set_scaler(struct gsc_context *ctx, struct gsc_scaler *sc)
+{
+	u32 cfg;
+
+	DRM_DEBUG_KMS("main_hratio[%ld]main_vratio[%ld]\n",
+		sc->main_hratio, sc->main_vratio);
+
+	gsc_set_h_coef(ctx, sc->main_hratio);
+	cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio);
+	gsc_write(cfg, GSC_MAIN_H_RATIO);
+
+	gsc_set_v_coef(ctx, sc->main_vratio);
+	cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio);
+	gsc_write(cfg, GSC_MAIN_V_RATIO);
+}
+
+static int gsc_dst_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct drm_exynos_pos img_pos = *pos;
+	struct gsc_scaler *sc = &ctx->sc;
+	u32 cfg;
+
+	DRM_DEBUG_KMS("swap[%d]x[%d]y[%d]w[%d]h[%d]\n",
+		swap, pos->x, pos->y, pos->w, pos->h);
+
+	if (swap) {
+		img_pos.w = pos->h;
+		img_pos.h = pos->w;
+	}
+
+	/* pixel offset */
+	cfg = (GSC_DSTIMG_OFFSET_X(pos->x) |
+		GSC_DSTIMG_OFFSET_Y(pos->y));
+	gsc_write(cfg, GSC_DSTIMG_OFFSET);
+
+	/* scaled size */
+	cfg = (GSC_SCALED_WIDTH(img_pos.w) | GSC_SCALED_HEIGHT(img_pos.h));
+	gsc_write(cfg, GSC_SCALED_SIZE);
+
+	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", sz->hsize, sz->vsize);
+
+	/* original size */
+	cfg = gsc_read(GSC_DSTIMG_SIZE);
+	cfg &= ~(GSC_DSTIMG_HEIGHT_MASK |
+		GSC_DSTIMG_WIDTH_MASK);
+	cfg |= (GSC_DSTIMG_WIDTH(sz->hsize) |
+		GSC_DSTIMG_HEIGHT(sz->vsize));
+	gsc_write(cfg, GSC_DSTIMG_SIZE);
+
+	cfg = gsc_read(GSC_OUT_CON);
+	cfg &= ~GSC_OUT_RGB_TYPE_MASK;
+
+	DRM_DEBUG_KMS("width[%d]range[%d]\n", pos->w, sc->range);
+
+	if (pos->w >= GSC_WIDTH_ITU_709)
+		if (sc->range)
+			cfg |= GSC_OUT_RGB_HD_WIDE;
+		else
+			cfg |= GSC_OUT_RGB_HD_NARROW;
+	else
+		if (sc->range)
+			cfg |= GSC_OUT_RGB_SD_WIDE;
+		else
+			cfg |= GSC_OUT_RGB_SD_NARROW;
+
+	gsc_write(cfg, GSC_OUT_CON);
+
+	return 0;
+}
+
+static int gsc_dst_get_buf_seq(struct gsc_context *ctx)
+{
+	u32 cfg, i, buf_num = GSC_REG_SZ;
+	u32 mask = 0x00000001;
+
+	cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+
+	for (i = 0; i < GSC_REG_SZ; i++)
+		if (cfg & (mask << i))
+			buf_num--;
+
+	DRM_DEBUG_KMS("buf_num[%d]\n", buf_num);
+
+	return buf_num;
+}
+
+static int gsc_dst_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	bool masked;
+	u32 cfg;
+	u32 mask = 0x00000001 << buf_id;
+	int ret = 0;
+
+	DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
+
+	mutex_lock(&ctx->lock);
+
+	/* mask register set */
+	cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		masked = false;
+		break;
+	case IPP_BUF_DEQUEUE:
+		masked = true;
+		break;
+	default:
+		dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
+		ret =  -EINVAL;
+		goto err_unlock;
+	}
+
+	/* sequence id */
+	cfg &= ~mask;
+	cfg |= masked << buf_id;
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
+	gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
+
+	/* interrupt enable */
+	if (buf_type == IPP_BUF_ENQUEUE &&
+	    gsc_dst_get_buf_seq(ctx) >= GSC_BUF_START)
+		gsc_handle_irq(ctx, true, false, true);
+
+	/* interrupt disable */
+	if (buf_type == IPP_BUF_DEQUEUE &&
+	    gsc_dst_get_buf_seq(ctx) <= GSC_BUF_STOP)
+		gsc_handle_irq(ctx, false, false, true);
+
+err_unlock:
+	mutex_unlock(&ctx->lock);
+	return ret;
+}
+
+static int gsc_dst_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EFAULT;
+	}
+
+	property = &c_node->property;
+
+	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+		property->prop_id, buf_id, buf_type);
+
+	if (buf_id > GSC_MAX_DST) {
+		dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+		return -EINVAL;
+	}
+
+	/* address register set */
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
+			GSC_OUT_BASE_ADDR_Y(buf_id));
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
+			GSC_OUT_BASE_ADDR_CB(buf_id));
+		gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
+			GSC_OUT_BASE_ADDR_CR(buf_id));
+		break;
+	case IPP_BUF_DEQUEUE:
+		gsc_write(0x0, GSC_OUT_BASE_ADDR_Y(buf_id));
+		gsc_write(0x0, GSC_OUT_BASE_ADDR_CB(buf_id));
+		gsc_write(0x0, GSC_OUT_BASE_ADDR_CR(buf_id));
+		break;
+	default:
+		/* bypass */
+		break;
+	}
+
+	return gsc_dst_set_buf_seq(ctx, buf_id, buf_type);
+}
+
+static struct exynos_drm_ipp_ops gsc_dst_ops = {
+	.set_fmt = gsc_dst_set_fmt,
+	.set_transf = gsc_dst_set_transf,
+	.set_size = gsc_dst_set_size,
+	.set_addr = gsc_dst_set_addr,
+};
+
+static int gsc_clk_ctrl(struct gsc_context *ctx, bool enable)
+{
+	DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+	if (enable) {
+		clk_enable(ctx->gsc_clk);
+		ctx->suspended = false;
+	} else {
+		clk_disable(ctx->gsc_clk);
+		ctx->suspended = true;
+	}
+
+	return 0;
+}
+
+static int gsc_get_src_buf_index(struct gsc_context *ctx)
+{
+	u32 cfg, curr_index, i;
+	u32 buf_id = GSC_MAX_SRC;
+	int ret;
+
+	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
+
+	cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+	curr_index = GSC_IN_CURR_GET_INDEX(cfg);
+
+	for (i = curr_index; i < GSC_MAX_SRC; i++) {
+		if (!((cfg >> i) & 0x1)) {
+			buf_id = i;
+			break;
+		}
+	}
+
+	if (buf_id == GSC_MAX_SRC) {
+		DRM_ERROR("failed to get in buffer index.\n");
+		return -EINVAL;
+	}
+
+	ret = gsc_src_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
+	if (ret < 0) {
+		DRM_ERROR("failed to dequeue.\n");
+		return ret;
+	}
+
+	DRM_DEBUG_KMS("cfg[0x%x]curr_index[%d]buf_id[%d]\n", cfg,
+		curr_index, buf_id);
+
+	return buf_id;
+}
+
+static int gsc_get_dst_buf_index(struct gsc_context *ctx)
+{
+	u32 cfg, curr_index, i;
+	u32 buf_id = GSC_MAX_DST;
+	int ret;
+
+	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
+
+	cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+	curr_index = GSC_OUT_CURR_GET_INDEX(cfg);
+
+	for (i = curr_index; i < GSC_MAX_DST; i++) {
+		if (!((cfg >> i) & 0x1)) {
+			buf_id = i;
+			break;
+		}
+	}
+
+	if (buf_id == GSC_MAX_DST) {
+		DRM_ERROR("failed to get out buffer index.\n");
+		return -EINVAL;
+	}
+
+	ret = gsc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
+	if (ret < 0) {
+		DRM_ERROR("failed to dequeue.\n");
+		return ret;
+	}
+
+	DRM_DEBUG_KMS("cfg[0x%x]curr_index[%d]buf_id[%d]\n", cfg,
+		curr_index, buf_id);
+
+	return buf_id;
+}
+
+static irqreturn_t gsc_irq_handler(int irq, void *dev_id)
+{
+	struct gsc_context *ctx = dev_id;
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_event_work *event_work =
+		c_node->event_work;
+	u32 status;
+	int buf_id[EXYNOS_DRM_OPS_MAX];
+
+	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);
+
+	status = gsc_read(GSC_IRQ);
+	if (status & GSC_IRQ_STATUS_OR_IRQ) {
+		dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
+			ctx->id, status);
+		return IRQ_NONE;
+	}
+
+	if (status & GSC_IRQ_STATUS_OR_FRM_DONE) {
+		dev_dbg(ippdrv->dev, "occurred frame done at %d, status 0x%x.\n",
+			ctx->id, status);
+
+		buf_id[EXYNOS_DRM_OPS_SRC] = gsc_get_src_buf_index(ctx);
+		if (buf_id[EXYNOS_DRM_OPS_SRC] < 0)
+			return IRQ_HANDLED;
+
+		buf_id[EXYNOS_DRM_OPS_DST] = gsc_get_dst_buf_index(ctx);
+		if (buf_id[EXYNOS_DRM_OPS_DST] < 0)
+			return IRQ_HANDLED;
+
+		DRM_DEBUG_KMS("buf_id_src[%d]buf_id_dst[%d]\n",
+			buf_id[EXYNOS_DRM_OPS_SRC], buf_id[EXYNOS_DRM_OPS_DST]);
+
+		event_work->ippdrv = ippdrv;
+		event_work->buf_id[EXYNOS_DRM_OPS_SRC] =
+			buf_id[EXYNOS_DRM_OPS_SRC];
+		event_work->buf_id[EXYNOS_DRM_OPS_DST] =
+			buf_id[EXYNOS_DRM_OPS_DST];
+		queue_work(ippdrv->event_workq, &event_work->work);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int gsc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
+{
+	struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
+
+	prop_list->version = 1;
+	prop_list->writeback = 1;
+	prop_list->refresh_min = GSC_REFRESH_MIN;
+	prop_list->refresh_max = GSC_REFRESH_MAX;
+	prop_list->flip = (1 << EXYNOS_DRM_FLIP_VERTICAL) |
+				(1 << EXYNOS_DRM_FLIP_HORIZONTAL);
+	prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
+				(1 << EXYNOS_DRM_DEGREE_90) |
+				(1 << EXYNOS_DRM_DEGREE_180) |
+				(1 << EXYNOS_DRM_DEGREE_270);
+	prop_list->csc = 1;
+	prop_list->crop = 1;
+	prop_list->crop_max.hsize = GSC_CROP_MAX;
+	prop_list->crop_max.vsize = GSC_CROP_MAX;
+	prop_list->crop_min.hsize = GSC_CROP_MIN;
+	prop_list->crop_min.vsize = GSC_CROP_MIN;
+	prop_list->scale = 1;
+	prop_list->scale_max.hsize = GSC_SCALE_MAX;
+	prop_list->scale_max.vsize = GSC_SCALE_MAX;
+	prop_list->scale_min.hsize = GSC_SCALE_MIN;
+	prop_list->scale_min.vsize = GSC_SCALE_MIN;
+
+	return 0;
+}
+
+static inline bool gsc_check_drm_flip(enum drm_exynos_flip flip)
+{
+	switch (flip) {
+	case EXYNOS_DRM_FLIP_NONE:
+	case EXYNOS_DRM_FLIP_VERTICAL:
+	case EXYNOS_DRM_FLIP_HORIZONTAL:
+	case EXYNOS_DRM_FLIP_BOTH:
+		return true;
+	default:
+		DRM_DEBUG_KMS("invalid flip\n");
+		return false;
+	}
+}
+
+static int gsc_ippdrv_check_property(struct device *dev,
+		struct drm_exynos_ipp_property *property)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_prop_list *pp = &ippdrv->prop_list;
+	struct drm_exynos_ipp_config *config;
+	struct drm_exynos_pos *pos;
+	struct drm_exynos_sz *sz;
+	bool swap;
+	int i;
+
+	for_each_ipp_ops(i) {
+		if ((i == EXYNOS_DRM_OPS_SRC) &&
+			(property->cmd == IPP_CMD_WB))
+			continue;
+
+		config = &property->config[i];
+		pos = &config->pos;
+		sz = &config->sz;
+
+		/* check for flip */
+		if (!gsc_check_drm_flip(config->flip)) {
+			DRM_ERROR("invalid flip.\n");
+			goto err_property;
+		}
+
+		/* check for degree */
+		switch (config->degree) {
+		case EXYNOS_DRM_DEGREE_90:
+		case EXYNOS_DRM_DEGREE_270:
+			swap = true;
+			break;
+		case EXYNOS_DRM_DEGREE_0:
+		case EXYNOS_DRM_DEGREE_180:
+			swap = false;
+			break;
+		default:
+			DRM_ERROR("invalid degree.\n");
+			goto err_property;
+		}
+
+		/* check for buffer bound */
+		if ((pos->x + pos->w > sz->hsize) ||
+			(pos->y + pos->h > sz->vsize)) {
+			DRM_ERROR("out of buf bound.\n");
+			goto err_property;
+		}
+
+		/* check for crop */
+		if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
+			if (swap) {
+				if ((pos->h < pp->crop_min.hsize) ||
+					(sz->vsize > pp->crop_max.hsize) ||
+					(pos->w < pp->crop_min.vsize) ||
+					(sz->hsize > pp->crop_max.vsize)) {
+					DRM_ERROR("out of crop size.\n");
+					goto err_property;
+				}
+			} else {
+				if ((pos->w < pp->crop_min.hsize) ||
+					(sz->hsize > pp->crop_max.hsize) ||
+					(pos->h < pp->crop_min.vsize) ||
+					(sz->vsize > pp->crop_max.vsize)) {
+					DRM_ERROR("out of crop size.\n");
+					goto err_property;
+				}
+			}
+		}
+
+		/* check for scale */
+		if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
+			if (swap) {
+				if ((pos->h < pp->scale_min.hsize) ||
+					(sz->vsize > pp->scale_max.hsize) ||
+					(pos->w < pp->scale_min.vsize) ||
+					(sz->hsize > pp->scale_max.vsize)) {
+					DRM_ERROR("out of scale size.\n");
+					goto err_property;
+				}
+			} else {
+				if ((pos->w < pp->scale_min.hsize) ||
+					(sz->hsize > pp->scale_max.hsize) ||
+					(pos->h < pp->scale_min.vsize) ||
+					(sz->vsize > pp->scale_max.vsize)) {
+					DRM_ERROR("out of scale size.\n");
+					goto err_property;
+				}
+			}
+		}
+	}
+
+	return 0;
+
+err_property:
+	for_each_ipp_ops(i) {
+		if ((i == EXYNOS_DRM_OPS_SRC) &&
+			(property->cmd == IPP_CMD_WB))
+			continue;
+
+		config = &property->config[i];
+		pos = &config->pos;
+		sz = &config->sz;
+
+		DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
+			i ? "dst" : "src", config->flip, config->degree,
+			pos->x, pos->y, pos->w, pos->h,
+			sz->hsize, sz->vsize);
+	}
+
+	return -EINVAL;
+}
+
+
+static int gsc_ippdrv_reset(struct device *dev)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct gsc_scaler *sc = &ctx->sc;
+	int ret;
+
+	/* reset h/w block */
+	ret = gsc_sw_reset(ctx);
+	if (ret < 0) {
+		dev_err(dev, "failed to reset hardware.\n");
+		return ret;
+	}
+
+	/* scaler setting */
+	memset(&ctx->sc, 0x0, sizeof(ctx->sc));
+	sc->range = true;
+
+	return 0;
+}
+
+static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_property *property;
+	struct drm_exynos_ipp_config *config;
+	struct drm_exynos_pos	img_pos[EXYNOS_DRM_OPS_MAX];
+	struct drm_exynos_ipp_set_wb set_wb;
+	u32 cfg;
+	int ret, i;
+
+	DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+	if (!c_node) {
+		DRM_ERROR("failed to get c_node.\n");
+		return -EINVAL;
+	}
+
+	property = &c_node->property;
+
+	gsc_handle_irq(ctx, true, false, true);
+
+	for_each_ipp_ops(i) {
+		config = &property->config[i];
+		img_pos[i] = config->pos;
+	}
+
+	switch (cmd) {
+	case IPP_CMD_M2M:
+		/* enable one shot */
+		cfg = gsc_read(GSC_ENABLE);
+		cfg &= ~(GSC_ENABLE_ON_CLEAR_MASK |
+			GSC_ENABLE_CLK_GATE_MODE_MASK);
+		cfg |= GSC_ENABLE_ON_CLEAR_ONESHOT;
+		gsc_write(cfg, GSC_ENABLE);
+
+		/* src dma memory */
+		cfg = gsc_read(GSC_IN_CON);
+		cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
+		cfg |= GSC_IN_PATH_MEMORY;
+		gsc_write(cfg, GSC_IN_CON);
+
+		/* dst dma memory */
+		cfg = gsc_read(GSC_OUT_CON);
+		cfg |= GSC_OUT_PATH_MEMORY;
+		gsc_write(cfg, GSC_OUT_CON);
+		break;
+	case IPP_CMD_WB:
+		set_wb.enable = 1;
+		set_wb.refresh = property->refresh_rate;
+		gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
+		exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+
+		/* src local path */
+		cfg = gsc_read(GSC_IN_CON);
+		cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
+		cfg |= (GSC_IN_PATH_LOCAL | GSC_IN_LOCAL_FIMD_WB);
+		gsc_write(cfg, GSC_IN_CON);
+
+		/* dst dma memory */
+		cfg = gsc_read(GSC_OUT_CON);
+		cfg |= GSC_OUT_PATH_MEMORY;
+		gsc_write(cfg, GSC_OUT_CON);
+		break;
+	case IPP_CMD_OUTPUT:
+		/* src dma memory */
+		cfg = gsc_read(GSC_IN_CON);
+		cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
+		cfg |= GSC_IN_PATH_MEMORY;
+		gsc_write(cfg, GSC_IN_CON);
+
+		/* dst local path */
+		cfg = gsc_read(GSC_OUT_CON);
+		cfg |= GSC_OUT_PATH_MEMORY;
+		gsc_write(cfg, GSC_OUT_CON);
+		break;
+	default:
+		ret = -EINVAL;
+		dev_err(dev, "invalid operations.\n");
+		return ret;
+	}
+
+	ret = gsc_set_prescaler(ctx, &ctx->sc,
+		&img_pos[EXYNOS_DRM_OPS_SRC],
+		&img_pos[EXYNOS_DRM_OPS_DST]);
+	if (ret) {
+		dev_err(dev, "failed to set precalser.\n");
+		return ret;
+	}
+
+	gsc_set_scaler(ctx, &ctx->sc);
+
+	cfg = gsc_read(GSC_ENABLE);
+	cfg |= GSC_ENABLE_ON;
+	gsc_write(cfg, GSC_ENABLE);
+
+	return 0;
+}
+
+static void gsc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct drm_exynos_ipp_set_wb set_wb = {0, 0};
+	u32 cfg;
+
+	DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+	switch (cmd) {
+	case IPP_CMD_M2M:
+		/* bypass */
+		break;
+	case IPP_CMD_WB:
+		gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
+		exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+		break;
+	case IPP_CMD_OUTPUT:
+	default:
+		dev_err(dev, "invalid operations.\n");
+		break;
+	}
+
+	gsc_handle_irq(ctx, false, false, true);
+
+	/* reset sequence */
+	gsc_write(0xff, GSC_OUT_BASE_ADDR_Y_MASK);
+	gsc_write(0xff, GSC_OUT_BASE_ADDR_CB_MASK);
+	gsc_write(0xff, GSC_OUT_BASE_ADDR_CR_MASK);
+
+	cfg = gsc_read(GSC_ENABLE);
+	cfg &= ~GSC_ENABLE_ON;
+	gsc_write(cfg, GSC_ENABLE);
+}
+
+static int gsc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct gsc_context *ctx;
+	struct resource *res;
+	struct exynos_drm_ippdrv *ippdrv;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	/* clock control */
+	ctx->gsc_clk = devm_clk_get(dev, "gscl");
+	if (IS_ERR(ctx->gsc_clk)) {
+		dev_err(dev, "failed to get gsc clock.\n");
+		return PTR_ERR(ctx->gsc_clk);
+	}
+
+	/* resource memory */
+	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
+
+	/* resource irq */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "failed to request irq resource.\n");
+		return -ENOENT;
+	}
+
+	ctx->irq = res->start;
+	ret = devm_request_threaded_irq(dev, ctx->irq, NULL, gsc_irq_handler,
+		IRQF_ONESHOT, "drm_gsc", ctx);
+	if (ret < 0) {
+		dev_err(dev, "failed to request irq.\n");
+		return ret;
+	}
+
+	/* context initailization */
+	ctx->id = pdev->id;
+
+	ippdrv = &ctx->ippdrv;
+	ippdrv->dev = dev;
+	ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &gsc_src_ops;
+	ippdrv->ops[EXYNOS_DRM_OPS_DST] = &gsc_dst_ops;
+	ippdrv->check_property = gsc_ippdrv_check_property;
+	ippdrv->reset = gsc_ippdrv_reset;
+	ippdrv->start = gsc_ippdrv_start;
+	ippdrv->stop = gsc_ippdrv_stop;
+	ret = gsc_init_prop_list(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to init property list.\n");
+		return ret;
+	}
+
+	DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
+
+	mutex_init(&ctx->lock);
+	platform_set_drvdata(pdev, ctx);
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	ret = exynos_drm_ippdrv_register(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to register drm gsc device.\n");
+		goto err_ippdrv_register;
+	}
+
+	dev_info(dev, "drm gsc registered successfully.\n");
+
+	return 0;
+
+err_ippdrv_register:
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static int gsc_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct gsc_context *ctx = get_gsc_context(dev);
+	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+
+	exynos_drm_ippdrv_unregister(ippdrv);
+	mutex_destroy(&ctx->lock);
+
+	pm_runtime_set_suspended(dev);
+	pm_runtime_disable(dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int gsc_suspend(struct device *dev)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	return gsc_clk_ctrl(ctx, false);
+}
+
+static int gsc_resume(struct device *dev)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	if (!pm_runtime_suspended(dev))
+		return gsc_clk_ctrl(ctx, true);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM
+static int gsc_runtime_suspend(struct device *dev)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	return  gsc_clk_ctrl(ctx, false);
+}
+
+static int gsc_runtime_resume(struct device *dev)
+{
+	struct gsc_context *ctx = get_gsc_context(dev);
+
+	DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+	return  gsc_clk_ctrl(ctx, true);
+}
+#endif
+
+static const struct dev_pm_ops gsc_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(gsc_suspend, gsc_resume)
+	SET_RUNTIME_PM_OPS(gsc_runtime_suspend, gsc_runtime_resume, NULL)
+};
+
+struct platform_driver gsc_driver = {
+	.probe		= gsc_probe,
+	.remove		= gsc_remove,
+	.driver		= {
+		.name	= "exynos-drm-gsc",
+		.owner	= THIS_MODULE,
+		.pm	= &gsc_pm_ops,
+	},
+};
+
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.h
new file mode 100644
index 000000000..29ec1c5ef
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_gsc.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_GSC_H_
+#define _EXYNOS_DRM_GSC_H_
+
+/*
+ * TODO
+ * FIMD output interface notifier callback.
+ * Mixer output interface notifier callback.
+ */
+
+#endif /* _EXYNOS_DRM_GSC_H_ */
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.c
new file mode 100644
index 000000000..b32b291f8
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.c
@@ -0,0 +1,143 @@
+/* exynos_drm_iommu.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <drmP.h>
+#include <drm/exynos_drm.h>
+
+#include <linux/dma-mapping.h>
+#include <linux/iommu.h>
+#include <linux/kref.h>
+
+#include <asm/dma-iommu.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_iommu.h"
+
+/*
+ * drm_create_iommu_mapping - create a mapping structure
+ *
+ * @drm_dev: DRM device
+ */
+int drm_create_iommu_mapping(struct drm_device *drm_dev)
+{
+	struct dma_iommu_mapping *mapping = NULL;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+	struct device *dev = drm_dev->dev;
+
+	if (!priv->da_start)
+		priv->da_start = EXYNOS_DEV_ADDR_START;
+	if (!priv->da_space_size)
+		priv->da_space_size = EXYNOS_DEV_ADDR_SIZE;
+
+	mapping = arm_iommu_create_mapping(&platform_bus_type, priv->da_start,
+						priv->da_space_size);
+
+	if (IS_ERR(mapping))
+		return PTR_ERR(mapping);
+
+	dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
+					GFP_KERNEL);
+	if (!dev->dma_parms)
+		goto error;
+
+	dma_set_max_seg_size(dev, 0xffffffffu);
+	dev->archdata.mapping = mapping;
+
+	return 0;
+error:
+	arm_iommu_release_mapping(mapping);
+	return -ENOMEM;
+}
+
+/*
+ * drm_release_iommu_mapping - release iommu mapping structure
+ *
+ * @drm_dev: DRM device
+ *
+ * if mapping->kref becomes 0 then all things related to iommu mapping
+ * will be released
+ */
+void drm_release_iommu_mapping(struct drm_device *drm_dev)
+{
+	struct device *dev = drm_dev->dev;
+
+	arm_iommu_release_mapping(dev->archdata.mapping);
+}
+
+/*
+ * drm_iommu_attach_device- attach device to iommu mapping
+ *
+ * @drm_dev: DRM device
+ * @subdrv_dev: device to be attach
+ *
+ * This function should be called by sub drivers to attach it to iommu
+ * mapping.
+ */
+int drm_iommu_attach_device(struct drm_device *drm_dev,
+				struct device *subdrv_dev)
+{
+	struct device *dev = drm_dev->dev;
+	int ret;
+
+	if (!dev->archdata.mapping) {
+		DRM_ERROR("iommu_mapping is null.\n");
+		return -EFAULT;
+	}
+
+	subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev,
+					sizeof(*subdrv_dev->dma_parms),
+					GFP_KERNEL);
+	if (!subdrv_dev->dma_parms)
+		return -ENOMEM;
+
+	dma_set_max_seg_size(subdrv_dev, 0xffffffffu);
+
+	ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);
+	if (ret < 0) {
+		DRM_DEBUG_KMS("failed iommu attach.\n");
+		return ret;
+	}
+
+	/*
+	 * Set dma_ops to drm_device just one time.
+	 *
+	 * The dma mapping api needs device object and the api is used
+	 * to allocate physial memory and map it with iommu table.
+	 * If iommu attach succeeded, the sub driver would have dma_ops
+	 * for iommu and also all sub drivers have same dma_ops.
+	 */
+	if (!dev->archdata.dma_ops)
+		dev->archdata.dma_ops = subdrv_dev->archdata.dma_ops;
+
+	return 0;
+}
+
+/*
+ * drm_iommu_detach_device -detach device address space mapping from device
+ *
+ * @drm_dev: DRM device
+ * @subdrv_dev: device to be detached
+ *
+ * This function should be called by sub drivers to detach it from iommu
+ * mapping
+ */
+void drm_iommu_detach_device(struct drm_device *drm_dev,
+				struct device *subdrv_dev)
+{
+	struct device *dev = drm_dev->dev;
+	struct dma_iommu_mapping *mapping = dev->archdata.mapping;
+
+	if (!mapping || !mapping->domain)
+		return;
+
+	iommu_detach_device(mapping->domain, subdrv_dev);
+	drm_release_iommu_mapping(drm_dev);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h
new file mode 100644
index 000000000..35d25889b
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_iommu.h
@@ -0,0 +1,69 @@
+/* exynos_drm_iommu.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Authoer: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_IOMMU_H_
+#define _EXYNOS_DRM_IOMMU_H_
+
+#define EXYNOS_DEV_ADDR_START	0x20000000
+#define EXYNOS_DEV_ADDR_SIZE	0x40000000
+
+#ifdef CONFIG_DRM_EXYNOS_IOMMU
+
+int drm_create_iommu_mapping(struct drm_device *drm_dev);
+
+void drm_release_iommu_mapping(struct drm_device *drm_dev);
+
+int drm_iommu_attach_device(struct drm_device *drm_dev,
+				struct device *subdrv_dev);
+
+void drm_iommu_detach_device(struct drm_device *dev_dev,
+				struct device *subdrv_dev);
+
+static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
+{
+#ifdef CONFIG_ARM_DMA_USE_IOMMU
+	struct device *dev = drm_dev->dev;
+
+	return dev->archdata.mapping ? true : false;
+#else
+	return false;
+#endif
+}
+
+#else
+
+static inline int drm_create_iommu_mapping(struct drm_device *drm_dev)
+{
+	return 0;
+}
+
+static inline void drm_release_iommu_mapping(struct drm_device *drm_dev)
+{
+}
+
+static inline int drm_iommu_attach_device(struct drm_device *drm_dev,
+						struct device *subdrv_dev)
+{
+	return 0;
+}
+
+static inline void drm_iommu_detach_device(struct drm_device *drm_dev,
+						struct device *subdrv_dev)
+{
+}
+
+static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
+{
+	return false;
+}
+
+#endif
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.c
new file mode 100644
index 000000000..b7f1cbc46
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -0,0 +1,1822 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_iommu.h"
+
+/*
+ * IPP stands for Image Post Processing and
+ * supports image scaler/rotator and input/output DMA operations.
+ * using FIMC, GSC, Rotator, so on.
+ * IPP is integration device driver of same attribute h/w
+ */
+
+/*
+ * TODO
+ * 1. expand command control id.
+ * 2. integrate	property and config.
+ * 3. removed send_event id check routine.
+ * 4. compare send_event id if needed.
+ * 5. free subdrv_remove notifier callback list if needed.
+ * 6. need to check subdrv_open about multi-open.
+ * 7. need to power_on implement power and sysmmu ctrl.
+ */
+
+#define get_ipp_context(dev)	platform_get_drvdata(to_platform_device(dev))
+#define ipp_is_m2m_cmd(c)	(c == IPP_CMD_M2M)
+
+/* platform device pointer for ipp device. */
+static struct platform_device *exynos_drm_ipp_pdev;
+
+/*
+ * A structure of event.
+ *
+ * @base: base of event.
+ * @event: ipp event.
+ */
+struct drm_exynos_ipp_send_event {
+	struct drm_pending_event	base;
+	struct drm_exynos_ipp_event	event;
+};
+
+/*
+ * A structure of memory node.
+ *
+ * @list: list head to memory queue information.
+ * @ops_id: id of operations.
+ * @prop_id: id of property.
+ * @buf_id: id of buffer.
+ * @buf_info: gem objects and dma address, size.
+ * @filp: a pointer to drm_file.
+ */
+struct drm_exynos_ipp_mem_node {
+	struct list_head	list;
+	enum drm_exynos_ops_id	ops_id;
+	u32	prop_id;
+	u32	buf_id;
+	struct drm_exynos_ipp_buf_info	buf_info;
+};
+
+/*
+ * A structure of ipp context.
+ *
+ * @subdrv: prepare initialization using subdrv.
+ * @ipp_lock: lock for synchronization of access to ipp_idr.
+ * @prop_lock: lock for synchronization of access to prop_idr.
+ * @ipp_idr: ipp driver idr.
+ * @prop_idr: property idr.
+ * @event_workq: event work queue.
+ * @cmd_workq: command work queue.
+ */
+struct ipp_context {
+	struct exynos_drm_subdrv	subdrv;
+	struct mutex	ipp_lock;
+	struct mutex	prop_lock;
+	struct idr	ipp_idr;
+	struct idr	prop_idr;
+	struct workqueue_struct	*event_workq;
+	struct workqueue_struct	*cmd_workq;
+};
+
+static LIST_HEAD(exynos_drm_ippdrv_list);
+static DEFINE_MUTEX(exynos_drm_ippdrv_lock);
+static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list);
+
+int exynos_platform_device_ipp_register(void)
+{
+	struct platform_device *pdev;
+
+	if (exynos_drm_ipp_pdev)
+		return -EEXIST;
+
+	pdev = platform_device_register_simple("exynos-drm-ipp", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	exynos_drm_ipp_pdev = pdev;
+
+	return 0;
+}
+
+void exynos_platform_device_ipp_unregister(void)
+{
+	if (exynos_drm_ipp_pdev) {
+		platform_device_unregister(exynos_drm_ipp_pdev);
+		exynos_drm_ipp_pdev = NULL;
+	}
+}
+
+int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv)
+{
+	mutex_lock(&exynos_drm_ippdrv_lock);
+	list_add_tail(&ippdrv->drv_list, &exynos_drm_ippdrv_list);
+	mutex_unlock(&exynos_drm_ippdrv_lock);
+
+	return 0;
+}
+
+int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv)
+{
+	mutex_lock(&exynos_drm_ippdrv_lock);
+	list_del(&ippdrv->drv_list);
+	mutex_unlock(&exynos_drm_ippdrv_lock);
+
+	return 0;
+}
+
+static int ipp_create_id(struct idr *id_idr, struct mutex *lock, void *obj)
+{
+	int ret;
+
+	mutex_lock(lock);
+	ret = idr_alloc(id_idr, obj, 1, 0, GFP_KERNEL);
+	mutex_unlock(lock);
+
+	return ret;
+}
+
+static void ipp_remove_id(struct idr *id_idr, struct mutex *lock, u32 id)
+{
+	mutex_lock(lock);
+	idr_remove(id_idr, id);
+	mutex_unlock(lock);
+}
+
+static void *ipp_find_obj(struct idr *id_idr, struct mutex *lock, u32 id)
+{
+	void *obj;
+
+	mutex_lock(lock);
+	obj = idr_find(id_idr, id);
+	mutex_unlock(lock);
+
+	return obj;
+}
+
+static int ipp_check_driver(struct exynos_drm_ippdrv *ippdrv,
+			    struct drm_exynos_ipp_property *property)
+{
+	if (ippdrv->dedicated || (!ipp_is_m2m_cmd(property->cmd) &&
+				  !pm_runtime_suspended(ippdrv->dev)))
+		return -EBUSY;
+
+	if (ippdrv->check_property &&
+	    ippdrv->check_property(ippdrv->dev, property))
+		return -EINVAL;
+
+	return 0;
+}
+
+static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx,
+		struct drm_exynos_ipp_property *property)
+{
+	struct exynos_drm_ippdrv *ippdrv;
+	u32 ipp_id = property->ipp_id;
+	int ret;
+
+	if (ipp_id) {
+		ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, ipp_id);
+		if (!ippdrv) {
+			DRM_DEBUG("ipp%d driver not found\n", ipp_id);
+			return ERR_PTR(-ENODEV);
+		}
+
+		ret = ipp_check_driver(ippdrv, property);
+		if (ret < 0) {
+			DRM_DEBUG("ipp%d driver check error %d\n", ipp_id, ret);
+			return ERR_PTR(ret);
+		}
+
+		return ippdrv;
+	} else {
+		list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
+			ret = ipp_check_driver(ippdrv, property);
+			if (ret == 0)
+				return ippdrv;
+		}
+
+		DRM_DEBUG("cannot find driver suitable for given property.\n");
+	}
+
+	return ERR_PTR(-ENODEV);
+}
+
+static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
+{
+	struct exynos_drm_ippdrv *ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	int count = 0;
+
+	DRM_DEBUG_KMS("prop_id[%d]\n", prop_id);
+
+	/*
+	 * This case is search ipp driver by prop_id handle.
+	 * sometimes, ipp subsystem find driver by prop_id.
+	 * e.g PAUSE state, queue buf, command control.
+	 */
+	list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
+		DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n", count++, (int)ippdrv);
+
+		mutex_lock(&ippdrv->cmd_lock);
+		list_for_each_entry(c_node, &ippdrv->cmd_list, list) {
+			if (c_node->property.prop_id == prop_id) {
+				mutex_unlock(&ippdrv->cmd_lock);
+				return ippdrv;
+			}
+		}
+		mutex_unlock(&ippdrv->cmd_lock);
+	}
+
+	return ERR_PTR(-ENODEV);
+}
+
+int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data,
+		struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct device *dev = file_priv->ipp_dev;
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct drm_exynos_ipp_prop_list *prop_list = data;
+	struct exynos_drm_ippdrv *ippdrv;
+	int count = 0;
+
+	if (!ctx) {
+		DRM_ERROR("invalid context.\n");
+		return -EINVAL;
+	}
+
+	if (!prop_list) {
+		DRM_ERROR("invalid property parameter.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("ipp_id[%d]\n", prop_list->ipp_id);
+
+	if (!prop_list->ipp_id) {
+		list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list)
+			count++;
+
+		/*
+		 * Supports ippdrv list count for user application.
+		 * First step user application getting ippdrv count.
+		 * and second step getting ippdrv capability using ipp_id.
+		 */
+		prop_list->count = count;
+	} else {
+		/*
+		 * Getting ippdrv capability by ipp_id.
+		 * some device not supported wb, output interface.
+		 * so, user application detect correct ipp driver
+		 * using this ioctl.
+		 */
+		ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock,
+						prop_list->ipp_id);
+		if (!ippdrv) {
+			DRM_ERROR("not found ipp%d driver.\n",
+					prop_list->ipp_id);
+			return -ENODEV;
+		}
+
+		*prop_list = ippdrv->prop_list;
+	}
+
+	return 0;
+}
+
+static void ipp_print_property(struct drm_exynos_ipp_property *property,
+		int idx)
+{
+	struct drm_exynos_ipp_config *config = &property->config[idx];
+	struct drm_exynos_pos *pos = &config->pos;
+	struct drm_exynos_sz *sz = &config->sz;
+
+	DRM_DEBUG_KMS("prop_id[%d]ops[%s]fmt[0x%x]\n",
+		property->prop_id, idx ? "dst" : "src", config->fmt);
+
+	DRM_DEBUG_KMS("pos[%d %d %d %d]sz[%d %d]f[%d]r[%d]\n",
+		pos->x, pos->y, pos->w, pos->h,
+		sz->hsize, sz->vsize, config->flip, config->degree);
+}
+
+static struct drm_exynos_ipp_cmd_work *ipp_create_cmd_work(void)
+{
+	struct drm_exynos_ipp_cmd_work *cmd_work;
+
+	cmd_work = kzalloc(sizeof(*cmd_work), GFP_KERNEL);
+	if (!cmd_work)
+		return ERR_PTR(-ENOMEM);
+
+	INIT_WORK((struct work_struct *)cmd_work, ipp_sched_cmd);
+
+	return cmd_work;
+}
+
+static struct drm_exynos_ipp_event_work *ipp_create_event_work(void)
+{
+	struct drm_exynos_ipp_event_work *event_work;
+
+	event_work = kzalloc(sizeof(*event_work), GFP_KERNEL);
+	if (!event_work)
+		return ERR_PTR(-ENOMEM);
+
+	INIT_WORK(&event_work->work, ipp_sched_event);
+
+	return event_work;
+}
+
+int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
+		struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct device *dev = file_priv->ipp_dev;
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct drm_exynos_ipp_property *property = data;
+	struct exynos_drm_ippdrv *ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	u32 prop_id;
+	int ret, i;
+
+	if (!ctx) {
+		DRM_ERROR("invalid context.\n");
+		return -EINVAL;
+	}
+
+	if (!property) {
+		DRM_ERROR("invalid property parameter.\n");
+		return -EINVAL;
+	}
+
+	prop_id = property->prop_id;
+
+	/*
+	 * This is log print for user application property.
+	 * user application set various property.
+	 */
+	for_each_ipp_ops(i)
+		ipp_print_property(property, i);
+
+	/*
+	 * In case prop_id is not zero try to set existing property.
+	 */
+	if (prop_id) {
+		c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, prop_id);
+
+		if (!c_node || c_node->filp != file) {
+			DRM_DEBUG_KMS("prop_id[%d] not found\n", prop_id);
+			return -EINVAL;
+		}
+
+		if (c_node->state != IPP_STATE_STOP) {
+			DRM_DEBUG_KMS("prop_id[%d] not stopped\n", prop_id);
+			return -EINVAL;
+		}
+
+		c_node->property = *property;
+
+		return 0;
+	}
+
+	/* find ipp driver using ipp id */
+	ippdrv = ipp_find_driver(ctx, property);
+	if (IS_ERR(ippdrv)) {
+		DRM_ERROR("failed to get ipp driver.\n");
+		return -EINVAL;
+	}
+
+	/* allocate command node */
+	c_node = kzalloc(sizeof(*c_node), GFP_KERNEL);
+	if (!c_node)
+		return -ENOMEM;
+
+	ret = ipp_create_id(&ctx->prop_idr, &ctx->prop_lock, c_node);
+	if (ret < 0) {
+		DRM_ERROR("failed to create id.\n");
+		goto err_clear;
+	}
+	property->prop_id = ret;
+
+	DRM_DEBUG_KMS("created prop_id[%d]cmd[%d]ippdrv[0x%x]\n",
+		property->prop_id, property->cmd, (int)ippdrv);
+
+	/* stored property information and ippdrv in private data */
+	c_node->property = *property;
+	c_node->state = IPP_STATE_IDLE;
+	c_node->filp = file;
+
+	c_node->start_work = ipp_create_cmd_work();
+	if (IS_ERR(c_node->start_work)) {
+		DRM_ERROR("failed to create start work.\n");
+		ret = PTR_ERR(c_node->start_work);
+		goto err_remove_id;
+	}
+
+	c_node->stop_work = ipp_create_cmd_work();
+	if (IS_ERR(c_node->stop_work)) {
+		DRM_ERROR("failed to create stop work.\n");
+		ret = PTR_ERR(c_node->stop_work);
+		goto err_free_start;
+	}
+
+	c_node->event_work = ipp_create_event_work();
+	if (IS_ERR(c_node->event_work)) {
+		DRM_ERROR("failed to create event work.\n");
+		ret = PTR_ERR(c_node->event_work);
+		goto err_free_stop;
+	}
+
+	mutex_init(&c_node->lock);
+	mutex_init(&c_node->mem_lock);
+	mutex_init(&c_node->event_lock);
+
+	init_completion(&c_node->start_complete);
+	init_completion(&c_node->stop_complete);
+
+	for_each_ipp_ops(i)
+		INIT_LIST_HEAD(&c_node->mem_list[i]);
+
+	INIT_LIST_HEAD(&c_node->event_list);
+	mutex_lock(&ippdrv->cmd_lock);
+	list_add_tail(&c_node->list, &ippdrv->cmd_list);
+	mutex_unlock(&ippdrv->cmd_lock);
+
+	/* make dedicated state without m2m */
+	if (!ipp_is_m2m_cmd(property->cmd))
+		ippdrv->dedicated = true;
+
+	return 0;
+
+err_free_stop:
+	kfree(c_node->stop_work);
+err_free_start:
+	kfree(c_node->start_work);
+err_remove_id:
+	ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock, property->prop_id);
+err_clear:
+	kfree(c_node);
+	return ret;
+}
+
+static int ipp_validate_mem_node(struct drm_device *drm_dev,
+				 struct drm_exynos_ipp_mem_node *m_node,
+				 struct drm_exynos_ipp_cmd_node *c_node)
+{
+	struct drm_exynos_ipp_config *ipp_cfg;
+	unsigned int num_plane;
+	unsigned long min_size, size;
+	unsigned int bpp;
+	int i;
+
+	/* The property id should already be varified */
+	ipp_cfg = &c_node->property.config[m_node->prop_id];
+	num_plane = drm_format_num_planes(ipp_cfg->fmt);
+
+	/**
+	 * This is a rather simplified validation of a memory node.
+	 * It basically verifies provided gem object handles
+	 * and the buffer sizes with respect to current configuration.
+	 * This is not the best that can be done
+	 * but it seems more than enough
+	 */
+	for (i = 0; i < num_plane; ++i) {
+		if (!m_node->buf_info.handles[i]) {
+			DRM_ERROR("invalid handle for plane %d\n", i);
+			return -EINVAL;
+		}
+		bpp = drm_format_plane_cpp(ipp_cfg->fmt, i);
+		min_size = (ipp_cfg->sz.hsize * ipp_cfg->sz.vsize * bpp) >> 3;
+		size = exynos_drm_gem_get_size(drm_dev,
+					       m_node->buf_info.handles[i],
+					       c_node->filp);
+		if (min_size > size) {
+			DRM_ERROR("invalid size for plane %d\n", i);
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static int ipp_put_mem_node(struct drm_device *drm_dev,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_mem_node *m_node)
+{
+	int i;
+
+	DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
+
+	if (!m_node) {
+		DRM_ERROR("invalid dequeue node.\n");
+		return -EFAULT;
+	}
+
+	DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id);
+
+	/* put gem buffer */
+	for_each_ipp_planar(i) {
+		unsigned long handle = m_node->buf_info.handles[i];
+		if (handle)
+			exynos_drm_gem_put_dma_addr(drm_dev, handle,
+							c_node->filp);
+	}
+
+	list_del(&m_node->list);
+	kfree(m_node);
+
+	return 0;
+}
+
+static struct drm_exynos_ipp_mem_node
+		*ipp_get_mem_node(struct drm_device *drm_dev,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct drm_exynos_ipp_mem_node *m_node;
+	struct drm_exynos_ipp_buf_info *buf_info;
+	int i;
+
+	m_node = kzalloc(sizeof(*m_node), GFP_KERNEL);
+	if (!m_node)
+		return ERR_PTR(-ENOMEM);
+
+	buf_info = &m_node->buf_info;
+
+	/* operations, buffer id */
+	m_node->ops_id = qbuf->ops_id;
+	m_node->prop_id = qbuf->prop_id;
+	m_node->buf_id = qbuf->buf_id;
+	INIT_LIST_HEAD(&m_node->list);
+
+	DRM_DEBUG_KMS("m_node[0x%x]ops_id[%d]\n", (int)m_node, qbuf->ops_id);
+	DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]\n", qbuf->prop_id, m_node->buf_id);
+
+	for_each_ipp_planar(i) {
+		DRM_DEBUG_KMS("i[%d]handle[0x%x]\n", i, qbuf->handle[i]);
+
+		/* get dma address by handle */
+		if (qbuf->handle[i]) {
+			dma_addr_t *addr;
+
+			addr = exynos_drm_gem_get_dma_addr(drm_dev,
+					qbuf->handle[i], c_node->filp);
+			if (IS_ERR(addr)) {
+				DRM_ERROR("failed to get addr.\n");
+				ipp_put_mem_node(drm_dev, c_node, m_node);
+				return ERR_PTR(-EFAULT);
+			}
+
+			buf_info->handles[i] = qbuf->handle[i];
+			buf_info->base[i] = *addr;
+			DRM_DEBUG_KMS("i[%d]base[0x%x]hd[0x%lx]\n", i,
+				      buf_info->base[i], buf_info->handles[i]);
+		}
+	}
+
+	mutex_lock(&c_node->mem_lock);
+	if (ipp_validate_mem_node(drm_dev, m_node, c_node)) {
+		ipp_put_mem_node(drm_dev, c_node, m_node);
+		mutex_unlock(&c_node->mem_lock);
+		return ERR_PTR(-EFAULT);
+	}
+	list_add_tail(&m_node->list, &c_node->mem_list[qbuf->ops_id]);
+	mutex_unlock(&c_node->mem_lock);
+
+	return m_node;
+}
+
+static void ipp_clean_mem_nodes(struct drm_device *drm_dev,
+			       struct drm_exynos_ipp_cmd_node *c_node, int ops)
+{
+	struct drm_exynos_ipp_mem_node *m_node, *tm_node;
+	struct list_head *head = &c_node->mem_list[ops];
+
+	mutex_lock(&c_node->mem_lock);
+
+	list_for_each_entry_safe(m_node, tm_node, head, list) {
+		int ret;
+
+		ret = ipp_put_mem_node(drm_dev, c_node, m_node);
+		if (ret)
+			DRM_ERROR("failed to put m_node.\n");
+	}
+
+	mutex_unlock(&c_node->mem_lock);
+}
+
+static void ipp_free_event(struct drm_pending_event *event)
+{
+	kfree(event);
+}
+
+static int ipp_get_event(struct drm_device *drm_dev,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct drm_exynos_ipp_send_event *e;
+	unsigned long flags;
+
+	DRM_DEBUG_KMS("ops_id[%d]buf_id[%d]\n", qbuf->ops_id, qbuf->buf_id);
+
+	e = kzalloc(sizeof(*e), GFP_KERNEL);
+	if (!e) {
+		spin_lock_irqsave(&drm_dev->event_lock, flags);
+		c_node->filp->event_space += sizeof(e->event);
+		spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+		return -ENOMEM;
+	}
+
+	/* make event */
+	e->event.base.type = DRM_EXYNOS_IPP_EVENT;
+	e->event.base.length = sizeof(e->event);
+	e->event.user_data = qbuf->user_data;
+	e->event.prop_id = qbuf->prop_id;
+	e->event.buf_id[EXYNOS_DRM_OPS_DST] = qbuf->buf_id;
+	e->base.event = &e->event.base;
+	e->base.file_priv = c_node->filp;
+	e->base.destroy = ipp_free_event;
+	mutex_lock(&c_node->event_lock);
+	list_add_tail(&e->base.link, &c_node->event_list);
+	mutex_unlock(&c_node->event_lock);
+
+	return 0;
+}
+
+static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct drm_exynos_ipp_send_event *e, *te;
+	int count = 0;
+
+	mutex_lock(&c_node->event_lock);
+	list_for_each_entry_safe(e, te, &c_node->event_list, base.link) {
+		DRM_DEBUG_KMS("count[%d]e[0x%x]\n", count++, (int)e);
+
+		/*
+		 * qbuf == NULL condition means all event deletion.
+		 * stop operations want to delete all event list.
+		 * another case delete only same buf id.
+		 */
+		if (!qbuf) {
+			/* delete list */
+			list_del(&e->base.link);
+			kfree(e);
+		}
+
+		/* compare buffer id */
+		if (qbuf && (qbuf->buf_id ==
+		    e->event.buf_id[EXYNOS_DRM_OPS_DST])) {
+			/* delete list */
+			list_del(&e->base.link);
+			kfree(e);
+			goto out_unlock;
+		}
+	}
+
+out_unlock:
+	mutex_unlock(&c_node->event_lock);
+	return;
+}
+
+static void ipp_clean_cmd_node(struct ipp_context *ctx,
+				struct drm_exynos_ipp_cmd_node *c_node)
+{
+	int i;
+
+	/* cancel works */
+	cancel_work_sync(&c_node->start_work->work);
+	cancel_work_sync(&c_node->stop_work->work);
+	cancel_work_sync(&c_node->event_work->work);
+
+	/* put event */
+	ipp_put_event(c_node, NULL);
+
+	for_each_ipp_ops(i)
+		ipp_clean_mem_nodes(ctx->subdrv.drm_dev, c_node, i);
+
+	/* delete list */
+	list_del(&c_node->list);
+
+	ipp_remove_id(&ctx->prop_idr, &ctx->prop_lock,
+			c_node->property.prop_id);
+
+	/* destroy mutex */
+	mutex_destroy(&c_node->lock);
+	mutex_destroy(&c_node->mem_lock);
+	mutex_destroy(&c_node->event_lock);
+
+	/* free command node */
+	kfree(c_node->start_work);
+	kfree(c_node->stop_work);
+	kfree(c_node->event_work);
+	kfree(c_node);
+}
+
+static bool ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node)
+{
+	switch (c_node->property.cmd) {
+	case IPP_CMD_WB:
+		return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]);
+	case IPP_CMD_OUTPUT:
+		return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]);
+	case IPP_CMD_M2M:
+	default:
+		return !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_SRC]) &&
+		       !list_empty(&c_node->mem_list[EXYNOS_DRM_OPS_DST]);
+	}
+}
+
+static struct drm_exynos_ipp_mem_node
+		*ipp_find_mem_node(struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct drm_exynos_ipp_mem_node *m_node;
+	struct list_head *head;
+	int count = 0;
+
+	DRM_DEBUG_KMS("buf_id[%d]\n", qbuf->buf_id);
+
+	/* source/destination memory list */
+	head = &c_node->mem_list[qbuf->ops_id];
+
+	/* find memory node from memory list */
+	list_for_each_entry(m_node, head, list) {
+		DRM_DEBUG_KMS("count[%d]m_node[0x%x]\n", count++, (int)m_node);
+
+		/* compare buffer id */
+		if (m_node->buf_id == qbuf->buf_id)
+			return m_node;
+	}
+
+	return NULL;
+}
+
+static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_mem_node *m_node)
+{
+	struct exynos_drm_ipp_ops *ops = NULL;
+	int ret = 0;
+
+	DRM_DEBUG_KMS("node[0x%x]\n", (int)m_node);
+
+	if (!m_node) {
+		DRM_ERROR("invalid queue node.\n");
+		return -EFAULT;
+	}
+
+	DRM_DEBUG_KMS("ops_id[%d]\n", m_node->ops_id);
+
+	/* get operations callback */
+	ops = ippdrv->ops[m_node->ops_id];
+	if (!ops) {
+		DRM_ERROR("not support ops.\n");
+		return -EFAULT;
+	}
+
+	/* set address and enable irq */
+	if (ops->set_addr) {
+		ret = ops->set_addr(ippdrv->dev, &m_node->buf_info,
+			m_node->buf_id, IPP_BUF_ENQUEUE);
+		if (ret) {
+			DRM_ERROR("failed to set addr.\n");
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+static void ipp_handle_cmd_work(struct device *dev,
+		struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_cmd_work *cmd_work,
+		struct drm_exynos_ipp_cmd_node *c_node)
+{
+	struct ipp_context *ctx = get_ipp_context(dev);
+
+	cmd_work->ippdrv = ippdrv;
+	cmd_work->c_node = c_node;
+	queue_work(ctx->cmd_workq, &cmd_work->work);
+}
+
+static int ipp_queue_buf_with_run(struct device *dev,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_mem_node *m_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct exynos_drm_ippdrv *ippdrv;
+	struct drm_exynos_ipp_property *property;
+	struct exynos_drm_ipp_ops *ops;
+	int ret;
+
+	ippdrv = ipp_find_drv_by_handle(qbuf->prop_id);
+	if (IS_ERR(ippdrv)) {
+		DRM_ERROR("failed to get ipp driver.\n");
+		return -EFAULT;
+	}
+
+	ops = ippdrv->ops[qbuf->ops_id];
+	if (!ops) {
+		DRM_ERROR("failed to get ops.\n");
+		return -EFAULT;
+	}
+
+	property = &c_node->property;
+
+	if (c_node->state != IPP_STATE_START) {
+		DRM_DEBUG_KMS("bypass for invalid state.\n");
+		return 0;
+	}
+
+	mutex_lock(&c_node->mem_lock);
+	if (!ipp_check_mem_list(c_node)) {
+		mutex_unlock(&c_node->mem_lock);
+		DRM_DEBUG_KMS("empty memory.\n");
+		return 0;
+	}
+
+	/*
+	 * If set destination buffer and enabled clock,
+	 * then m2m operations need start operations at queue_buf
+	 */
+	if (ipp_is_m2m_cmd(property->cmd)) {
+		struct drm_exynos_ipp_cmd_work *cmd_work = c_node->start_work;
+
+		cmd_work->ctrl = IPP_CTRL_PLAY;
+		ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
+	} else {
+		ret = ipp_set_mem_node(ippdrv, c_node, m_node);
+		if (ret) {
+			mutex_unlock(&c_node->mem_lock);
+			DRM_ERROR("failed to set m node.\n");
+			return ret;
+		}
+	}
+	mutex_unlock(&c_node->mem_lock);
+
+	return 0;
+}
+
+static void ipp_clean_queue_buf(struct drm_device *drm_dev,
+		struct drm_exynos_ipp_cmd_node *c_node,
+		struct drm_exynos_ipp_queue_buf *qbuf)
+{
+	struct drm_exynos_ipp_mem_node *m_node, *tm_node;
+
+	/* delete list */
+	mutex_lock(&c_node->mem_lock);
+	list_for_each_entry_safe(m_node, tm_node,
+		&c_node->mem_list[qbuf->ops_id], list) {
+		if (m_node->buf_id == qbuf->buf_id &&
+		    m_node->ops_id == qbuf->ops_id)
+			ipp_put_mem_node(drm_dev, c_node, m_node);
+	}
+	mutex_unlock(&c_node->mem_lock);
+}
+
+int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data,
+		struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct device *dev = file_priv->ipp_dev;
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct drm_exynos_ipp_queue_buf *qbuf = data;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	struct drm_exynos_ipp_mem_node *m_node;
+	int ret;
+
+	if (!qbuf) {
+		DRM_ERROR("invalid buf parameter.\n");
+		return -EINVAL;
+	}
+
+	if (qbuf->ops_id >= EXYNOS_DRM_OPS_MAX) {
+		DRM_ERROR("invalid ops parameter.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("prop_id[%d]ops_id[%s]buf_id[%d]buf_type[%d]\n",
+		qbuf->prop_id, qbuf->ops_id ? "dst" : "src",
+		qbuf->buf_id, qbuf->buf_type);
+
+	/* find command node */
+	c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock,
+		qbuf->prop_id);
+	if (!c_node || c_node->filp != file) {
+		DRM_ERROR("failed to get command node.\n");
+		return -ENODEV;
+	}
+
+	/* buffer control */
+	switch (qbuf->buf_type) {
+	case IPP_BUF_ENQUEUE:
+		/* get memory node */
+		m_node = ipp_get_mem_node(drm_dev, c_node, qbuf);
+		if (IS_ERR(m_node)) {
+			DRM_ERROR("failed to get m_node.\n");
+			return PTR_ERR(m_node);
+		}
+
+		/*
+		 * first step get event for destination buffer.
+		 * and second step when M2M case run with destination buffer
+		 * if needed.
+		 */
+		if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) {
+			/* get event for destination buffer */
+			ret = ipp_get_event(drm_dev, c_node, qbuf);
+			if (ret) {
+				DRM_ERROR("failed to get event.\n");
+				goto err_clean_node;
+			}
+
+			/*
+			 * M2M case run play control for streaming feature.
+			 * other case set address and waiting.
+			 */
+			ret = ipp_queue_buf_with_run(dev, c_node, m_node, qbuf);
+			if (ret) {
+				DRM_ERROR("failed to run command.\n");
+				goto err_clean_node;
+			}
+		}
+		break;
+	case IPP_BUF_DEQUEUE:
+		mutex_lock(&c_node->lock);
+
+		/* put event for destination buffer */
+		if (qbuf->ops_id == EXYNOS_DRM_OPS_DST)
+			ipp_put_event(c_node, qbuf);
+
+		ipp_clean_queue_buf(drm_dev, c_node, qbuf);
+
+		mutex_unlock(&c_node->lock);
+		break;
+	default:
+		DRM_ERROR("invalid buffer control.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+
+err_clean_node:
+	DRM_ERROR("clean memory nodes.\n");
+
+	ipp_clean_queue_buf(drm_dev, c_node, qbuf);
+	return ret;
+}
+
+static bool exynos_drm_ipp_check_valid(struct device *dev,
+		enum drm_exynos_ipp_ctrl ctrl, enum drm_exynos_ipp_state state)
+{
+	if (ctrl != IPP_CTRL_PLAY) {
+		if (pm_runtime_suspended(dev)) {
+			DRM_ERROR("pm:runtime_suspended.\n");
+			goto err_status;
+		}
+	}
+
+	switch (ctrl) {
+	case IPP_CTRL_PLAY:
+		if (state != IPP_STATE_IDLE)
+			goto err_status;
+		break;
+	case IPP_CTRL_STOP:
+		if (state == IPP_STATE_STOP)
+			goto err_status;
+		break;
+	case IPP_CTRL_PAUSE:
+		if (state != IPP_STATE_START)
+			goto err_status;
+		break;
+	case IPP_CTRL_RESUME:
+		if (state != IPP_STATE_STOP)
+			goto err_status;
+		break;
+	default:
+		DRM_ERROR("invalid state.\n");
+		goto err_status;
+	}
+
+	return true;
+
+err_status:
+	DRM_ERROR("invalid status:ctrl[%d]state[%d]\n", ctrl, state);
+	return false;
+}
+
+int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data,
+		struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_ippdrv *ippdrv = NULL;
+	struct device *dev = file_priv->ipp_dev;
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct drm_exynos_ipp_cmd_ctrl *cmd_ctrl = data;
+	struct drm_exynos_ipp_cmd_work *cmd_work;
+	struct drm_exynos_ipp_cmd_node *c_node;
+
+	if (!ctx) {
+		DRM_ERROR("invalid context.\n");
+		return -EINVAL;
+	}
+
+	if (!cmd_ctrl) {
+		DRM_ERROR("invalid control parameter.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("ctrl[%d]prop_id[%d]\n",
+		cmd_ctrl->ctrl, cmd_ctrl->prop_id);
+
+	ippdrv = ipp_find_drv_by_handle(cmd_ctrl->prop_id);
+	if (IS_ERR(ippdrv)) {
+		DRM_ERROR("failed to get ipp driver.\n");
+		return PTR_ERR(ippdrv);
+	}
+
+	c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock,
+		cmd_ctrl->prop_id);
+	if (!c_node || c_node->filp != file) {
+		DRM_ERROR("invalid command node list.\n");
+		return -ENODEV;
+	}
+
+	if (!exynos_drm_ipp_check_valid(ippdrv->dev, cmd_ctrl->ctrl,
+	    c_node->state)) {
+		DRM_ERROR("invalid state.\n");
+		return -EINVAL;
+	}
+
+	switch (cmd_ctrl->ctrl) {
+	case IPP_CTRL_PLAY:
+		if (pm_runtime_suspended(ippdrv->dev))
+			pm_runtime_get_sync(ippdrv->dev);
+
+		c_node->state = IPP_STATE_START;
+
+		cmd_work = c_node->start_work;
+		cmd_work->ctrl = cmd_ctrl->ctrl;
+		ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
+		break;
+	case IPP_CTRL_STOP:
+		cmd_work = c_node->stop_work;
+		cmd_work->ctrl = cmd_ctrl->ctrl;
+		ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
+
+		if (!wait_for_completion_timeout(&c_node->stop_complete,
+		    msecs_to_jiffies(300))) {
+			DRM_ERROR("timeout stop:prop_id[%d]\n",
+				c_node->property.prop_id);
+		}
+
+		c_node->state = IPP_STATE_STOP;
+		ippdrv->dedicated = false;
+		mutex_lock(&ippdrv->cmd_lock);
+		ipp_clean_cmd_node(ctx, c_node);
+
+		if (list_empty(&ippdrv->cmd_list))
+			pm_runtime_put_sync(ippdrv->dev);
+		mutex_unlock(&ippdrv->cmd_lock);
+		break;
+	case IPP_CTRL_PAUSE:
+		cmd_work = c_node->stop_work;
+		cmd_work->ctrl = cmd_ctrl->ctrl;
+		ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
+
+		if (!wait_for_completion_timeout(&c_node->stop_complete,
+		    msecs_to_jiffies(200))) {
+			DRM_ERROR("timeout stop:prop_id[%d]\n",
+				c_node->property.prop_id);
+		}
+
+		c_node->state = IPP_STATE_STOP;
+		break;
+	case IPP_CTRL_RESUME:
+		c_node->state = IPP_STATE_START;
+		cmd_work = c_node->start_work;
+		cmd_work->ctrl = cmd_ctrl->ctrl;
+		ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node);
+		break;
+	default:
+		DRM_ERROR("could not support this state currently.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("done ctrl[%d]prop_id[%d]\n",
+		cmd_ctrl->ctrl, cmd_ctrl->prop_id);
+
+	return 0;
+}
+
+int exynos_drm_ippnb_register(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_register(
+		&exynos_drm_ippnb_list, nb);
+}
+
+int exynos_drm_ippnb_unregister(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_unregister(
+		&exynos_drm_ippnb_list, nb);
+}
+
+int exynos_drm_ippnb_send_event(unsigned long val, void *v)
+{
+	return blocking_notifier_call_chain(
+		&exynos_drm_ippnb_list, val, v);
+}
+
+static int ipp_set_property(struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_property *property)
+{
+	struct exynos_drm_ipp_ops *ops = NULL;
+	bool swap = false;
+	int ret, i;
+
+	if (!property) {
+		DRM_ERROR("invalid property parameter.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
+
+	/* reset h/w block */
+	if (ippdrv->reset &&
+	    ippdrv->reset(ippdrv->dev)) {
+		return -EINVAL;
+	}
+
+	/* set source,destination operations */
+	for_each_ipp_ops(i) {
+		struct drm_exynos_ipp_config *config =
+			&property->config[i];
+
+		ops = ippdrv->ops[i];
+		if (!ops || !config) {
+			DRM_ERROR("not support ops and config.\n");
+			return -EINVAL;
+		}
+
+		/* set format */
+		if (ops->set_fmt) {
+			ret = ops->set_fmt(ippdrv->dev, config->fmt);
+			if (ret)
+				return ret;
+		}
+
+		/* set transform for rotation, flip */
+		if (ops->set_transf) {
+			ret = ops->set_transf(ippdrv->dev, config->degree,
+				config->flip, &swap);
+			if (ret)
+				return ret;
+		}
+
+		/* set size */
+		if (ops->set_size) {
+			ret = ops->set_size(ippdrv->dev, swap, &config->pos,
+				&config->sz);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_cmd_node *c_node)
+{
+	struct drm_exynos_ipp_mem_node *m_node;
+	struct drm_exynos_ipp_property *property = &c_node->property;
+	struct list_head *head;
+	int ret, i;
+
+	DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
+
+	/* store command info in ippdrv */
+	ippdrv->c_node = c_node;
+
+	mutex_lock(&c_node->mem_lock);
+	if (!ipp_check_mem_list(c_node)) {
+		DRM_DEBUG_KMS("empty memory.\n");
+		ret = -ENOMEM;
+		goto err_unlock;
+	}
+
+	/* set current property in ippdrv */
+	ret = ipp_set_property(ippdrv, property);
+	if (ret) {
+		DRM_ERROR("failed to set property.\n");
+		ippdrv->c_node = NULL;
+		goto err_unlock;
+	}
+
+	/* check command */
+	switch (property->cmd) {
+	case IPP_CMD_M2M:
+		for_each_ipp_ops(i) {
+			/* source/destination memory list */
+			head = &c_node->mem_list[i];
+
+			m_node = list_first_entry(head,
+				struct drm_exynos_ipp_mem_node, list);
+
+			DRM_DEBUG_KMS("m_node[0x%x]\n", (int)m_node);
+
+			ret = ipp_set_mem_node(ippdrv, c_node, m_node);
+			if (ret) {
+				DRM_ERROR("failed to set m node.\n");
+				goto err_unlock;
+			}
+		}
+		break;
+	case IPP_CMD_WB:
+		/* destination memory list */
+		head = &c_node->mem_list[EXYNOS_DRM_OPS_DST];
+
+		list_for_each_entry(m_node, head, list) {
+			ret = ipp_set_mem_node(ippdrv, c_node, m_node);
+			if (ret) {
+				DRM_ERROR("failed to set m node.\n");
+				goto err_unlock;
+			}
+		}
+		break;
+	case IPP_CMD_OUTPUT:
+		/* source memory list */
+		head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
+
+		list_for_each_entry(m_node, head, list) {
+			ret = ipp_set_mem_node(ippdrv, c_node, m_node);
+			if (ret) {
+				DRM_ERROR("failed to set m node.\n");
+				goto err_unlock;
+			}
+		}
+		break;
+	default:
+		DRM_ERROR("invalid operations.\n");
+		ret = -EINVAL;
+		goto err_unlock;
+	}
+	mutex_unlock(&c_node->mem_lock);
+
+	DRM_DEBUG_KMS("cmd[%d]\n", property->cmd);
+
+	/* start operations */
+	if (ippdrv->start) {
+		ret = ippdrv->start(ippdrv->dev, property->cmd);
+		if (ret) {
+			DRM_ERROR("failed to start ops.\n");
+			ippdrv->c_node = NULL;
+			return ret;
+		}
+	}
+
+	return 0;
+
+err_unlock:
+	mutex_unlock(&c_node->mem_lock);
+	ippdrv->c_node = NULL;
+	return ret;
+}
+
+static int ipp_stop_property(struct drm_device *drm_dev,
+		struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_cmd_node *c_node)
+{
+	struct drm_exynos_ipp_property *property = &c_node->property;
+	int i;
+
+	DRM_DEBUG_KMS("prop_id[%d]\n", property->prop_id);
+
+	/* stop operations */
+	if (ippdrv->stop)
+		ippdrv->stop(ippdrv->dev, property->cmd);
+
+	/* check command */
+	switch (property->cmd) {
+	case IPP_CMD_M2M:
+		for_each_ipp_ops(i)
+			ipp_clean_mem_nodes(drm_dev, c_node, i);
+		break;
+	case IPP_CMD_WB:
+		ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_DST);
+		break;
+	case IPP_CMD_OUTPUT:
+		ipp_clean_mem_nodes(drm_dev, c_node, EXYNOS_DRM_OPS_SRC);
+		break;
+	default:
+		DRM_ERROR("invalid operations.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void ipp_sched_cmd(struct work_struct *work)
+{
+	struct drm_exynos_ipp_cmd_work *cmd_work =
+		container_of(work, struct drm_exynos_ipp_cmd_work, work);
+	struct exynos_drm_ippdrv *ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	struct drm_exynos_ipp_property *property;
+	int ret;
+
+	ippdrv = cmd_work->ippdrv;
+	if (!ippdrv) {
+		DRM_ERROR("invalid ippdrv list.\n");
+		return;
+	}
+
+	c_node = cmd_work->c_node;
+	if (!c_node) {
+		DRM_ERROR("invalid command node list.\n");
+		return;
+	}
+
+	mutex_lock(&c_node->lock);
+
+	property = &c_node->property;
+
+	switch (cmd_work->ctrl) {
+	case IPP_CTRL_PLAY:
+	case IPP_CTRL_RESUME:
+		ret = ipp_start_property(ippdrv, c_node);
+		if (ret) {
+			DRM_ERROR("failed to start property:prop_id[%d]\n",
+				c_node->property.prop_id);
+			goto err_unlock;
+		}
+
+		/*
+		 * M2M case supports wait_completion of transfer.
+		 * because M2M case supports single unit operation
+		 * with multiple queue.
+		 * M2M need to wait completion of data transfer.
+		 */
+		if (ipp_is_m2m_cmd(property->cmd)) {
+			if (!wait_for_completion_timeout
+			    (&c_node->start_complete, msecs_to_jiffies(200))) {
+				DRM_ERROR("timeout event:prop_id[%d]\n",
+					c_node->property.prop_id);
+				goto err_unlock;
+			}
+		}
+		break;
+	case IPP_CTRL_STOP:
+	case IPP_CTRL_PAUSE:
+		ret = ipp_stop_property(ippdrv->drm_dev, ippdrv,
+			c_node);
+		if (ret) {
+			DRM_ERROR("failed to stop property.\n");
+			goto err_unlock;
+		}
+
+		complete(&c_node->stop_complete);
+		break;
+	default:
+		DRM_ERROR("unknown control type\n");
+		break;
+	}
+
+	DRM_DEBUG_KMS("ctrl[%d] done.\n", cmd_work->ctrl);
+
+err_unlock:
+	mutex_unlock(&c_node->lock);
+}
+
+static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv,
+		struct drm_exynos_ipp_cmd_node *c_node, int *buf_id)
+{
+	struct drm_device *drm_dev = ippdrv->drm_dev;
+	struct drm_exynos_ipp_property *property = &c_node->property;
+	struct drm_exynos_ipp_mem_node *m_node;
+	struct drm_exynos_ipp_queue_buf qbuf;
+	struct drm_exynos_ipp_send_event *e;
+	struct list_head *head;
+	struct timeval now;
+	unsigned long flags;
+	u32 tbuf_id[EXYNOS_DRM_OPS_MAX] = {0, };
+	int ret, i;
+
+	for_each_ipp_ops(i)
+		DRM_DEBUG_KMS("%s buf_id[%d]\n", i ? "dst" : "src", buf_id[i]);
+
+	if (!drm_dev) {
+		DRM_ERROR("failed to get drm_dev.\n");
+		return -EINVAL;
+	}
+
+	if (!property) {
+		DRM_ERROR("failed to get property.\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&c_node->event_lock);
+	if (list_empty(&c_node->event_list)) {
+		DRM_DEBUG_KMS("event list is empty.\n");
+		ret = 0;
+		goto err_event_unlock;
+	}
+
+	mutex_lock(&c_node->mem_lock);
+	if (!ipp_check_mem_list(c_node)) {
+		DRM_DEBUG_KMS("empty memory.\n");
+		ret = 0;
+		goto err_mem_unlock;
+	}
+
+	/* check command */
+	switch (property->cmd) {
+	case IPP_CMD_M2M:
+		for_each_ipp_ops(i) {
+			/* source/destination memory list */
+			head = &c_node->mem_list[i];
+
+			m_node = list_first_entry(head,
+				struct drm_exynos_ipp_mem_node, list);
+
+			tbuf_id[i] = m_node->buf_id;
+			DRM_DEBUG_KMS("%s buf_id[%d]\n",
+				i ? "dst" : "src", tbuf_id[i]);
+
+			ret = ipp_put_mem_node(drm_dev, c_node, m_node);
+			if (ret)
+				DRM_ERROR("failed to put m_node.\n");
+		}
+		break;
+	case IPP_CMD_WB:
+		/* clear buf for finding */
+		memset(&qbuf, 0x0, sizeof(qbuf));
+		qbuf.ops_id = EXYNOS_DRM_OPS_DST;
+		qbuf.buf_id = buf_id[EXYNOS_DRM_OPS_DST];
+
+		/* get memory node entry */
+		m_node = ipp_find_mem_node(c_node, &qbuf);
+		if (!m_node) {
+			DRM_ERROR("empty memory node.\n");
+			ret = -ENOMEM;
+			goto err_mem_unlock;
+		}
+
+		tbuf_id[EXYNOS_DRM_OPS_DST] = m_node->buf_id;
+
+		ret = ipp_put_mem_node(drm_dev, c_node, m_node);
+		if (ret)
+			DRM_ERROR("failed to put m_node.\n");
+		break;
+	case IPP_CMD_OUTPUT:
+		/* source memory list */
+		head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
+
+		m_node = list_first_entry(head,
+			struct drm_exynos_ipp_mem_node, list);
+
+		tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id;
+
+		ret = ipp_put_mem_node(drm_dev, c_node, m_node);
+		if (ret)
+			DRM_ERROR("failed to put m_node.\n");
+		break;
+	default:
+		DRM_ERROR("invalid operations.\n");
+		ret = -EINVAL;
+		goto err_mem_unlock;
+	}
+	mutex_unlock(&c_node->mem_lock);
+
+	if (tbuf_id[EXYNOS_DRM_OPS_DST] != buf_id[EXYNOS_DRM_OPS_DST])
+		DRM_ERROR("failed to match buf_id[%d %d]prop_id[%d]\n",
+			tbuf_id[1], buf_id[1], property->prop_id);
+
+	/*
+	 * command node have event list of destination buffer
+	 * If destination buffer enqueue to mem list,
+	 * then we make event and link to event list tail.
+	 * so, we get first event for first enqueued buffer.
+	 */
+	e = list_first_entry(&c_node->event_list,
+		struct drm_exynos_ipp_send_event, base.link);
+
+	do_gettimeofday(&now);
+	DRM_DEBUG_KMS("tv_sec[%ld]tv_usec[%ld]\n", now.tv_sec, now.tv_usec);
+	e->event.tv_sec = now.tv_sec;
+	e->event.tv_usec = now.tv_usec;
+	e->event.prop_id = property->prop_id;
+
+	/* set buffer id about source destination */
+	for_each_ipp_ops(i)
+		e->event.buf_id[i] = tbuf_id[i];
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+	list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+	wake_up_interruptible(&e->base.file_priv->event_wait);
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+	mutex_unlock(&c_node->event_lock);
+
+	DRM_DEBUG_KMS("done cmd[%d]prop_id[%d]buf_id[%d]\n",
+		property->cmd, property->prop_id, tbuf_id[EXYNOS_DRM_OPS_DST]);
+
+	return 0;
+
+err_mem_unlock:
+	mutex_unlock(&c_node->mem_lock);
+err_event_unlock:
+	mutex_unlock(&c_node->event_lock);
+	return ret;
+}
+
+void ipp_sched_event(struct work_struct *work)
+{
+	struct drm_exynos_ipp_event_work *event_work =
+		container_of(work, struct drm_exynos_ipp_event_work, work);
+	struct exynos_drm_ippdrv *ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	int ret;
+
+	if (!event_work) {
+		DRM_ERROR("failed to get event_work.\n");
+		return;
+	}
+
+	DRM_DEBUG_KMS("buf_id[%d]\n", event_work->buf_id[EXYNOS_DRM_OPS_DST]);
+
+	ippdrv = event_work->ippdrv;
+	if (!ippdrv) {
+		DRM_ERROR("failed to get ipp driver.\n");
+		return;
+	}
+
+	c_node = ippdrv->c_node;
+	if (!c_node) {
+		DRM_ERROR("failed to get command node.\n");
+		return;
+	}
+
+	/*
+	 * IPP supports command thread, event thread synchronization.
+	 * If IPP close immediately from user land, then IPP make
+	 * synchronization with command thread, so make complete event.
+	 * or going out operations.
+	 */
+	if (c_node->state != IPP_STATE_START) {
+		DRM_DEBUG_KMS("bypass state[%d]prop_id[%d]\n",
+			c_node->state, c_node->property.prop_id);
+		goto err_completion;
+	}
+
+	ret = ipp_send_event(ippdrv, c_node, event_work->buf_id);
+	if (ret) {
+		DRM_ERROR("failed to send event.\n");
+		goto err_completion;
+	}
+
+err_completion:
+	if (ipp_is_m2m_cmd(c_node->property.cmd))
+		complete(&c_node->start_complete);
+}
+
+static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
+{
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct exynos_drm_ippdrv *ippdrv;
+	int ret, count = 0;
+
+	/* get ipp driver entry */
+	list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
+		ippdrv->drm_dev = drm_dev;
+
+		ret = ipp_create_id(&ctx->ipp_idr, &ctx->ipp_lock, ippdrv);
+		if (ret < 0) {
+			DRM_ERROR("failed to create id.\n");
+			goto err;
+		}
+		ippdrv->prop_list.ipp_id = ret;
+
+		DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]ipp_id[%d]\n",
+			count++, (int)ippdrv, ret);
+
+		/* store parent device for node */
+		ippdrv->parent_dev = dev;
+
+		/* store event work queue and handler */
+		ippdrv->event_workq = ctx->event_workq;
+		ippdrv->sched_event = ipp_sched_event;
+		INIT_LIST_HEAD(&ippdrv->cmd_list);
+		mutex_init(&ippdrv->cmd_lock);
+
+		if (is_drm_iommu_supported(drm_dev)) {
+			ret = drm_iommu_attach_device(drm_dev, ippdrv->dev);
+			if (ret) {
+				DRM_ERROR("failed to activate iommu\n");
+				goto err;
+			}
+		}
+	}
+
+	return 0;
+
+err:
+	/* get ipp driver entry */
+	list_for_each_entry_continue_reverse(ippdrv, &exynos_drm_ippdrv_list,
+						drv_list) {
+		if (is_drm_iommu_supported(drm_dev))
+			drm_iommu_detach_device(drm_dev, ippdrv->dev);
+
+		ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock,
+				ippdrv->prop_list.ipp_id);
+	}
+
+	return ret;
+}
+
+static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
+{
+	struct exynos_drm_ippdrv *ippdrv, *t;
+	struct ipp_context *ctx = get_ipp_context(dev);
+
+	/* get ipp driver entry */
+	list_for_each_entry_safe(ippdrv, t, &exynos_drm_ippdrv_list, drv_list) {
+		if (is_drm_iommu_supported(drm_dev))
+			drm_iommu_detach_device(drm_dev, ippdrv->dev);
+
+		ipp_remove_id(&ctx->ipp_idr, &ctx->ipp_lock,
+				ippdrv->prop_list.ipp_id);
+
+		ippdrv->drm_dev = NULL;
+		exynos_drm_ippdrv_unregister(ippdrv);
+	}
+}
+
+static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev,
+		struct drm_file *file)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+
+	file_priv->ipp_dev = dev;
+
+	DRM_DEBUG_KMS("done priv[0x%x]\n", (int)dev);
+
+	return 0;
+}
+
+static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
+		struct drm_file *file)
+{
+	struct exynos_drm_ippdrv *ippdrv = NULL;
+	struct ipp_context *ctx = get_ipp_context(dev);
+	struct drm_exynos_ipp_cmd_node *c_node, *tc_node;
+	int count = 0;
+
+	list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
+		mutex_lock(&ippdrv->cmd_lock);
+		list_for_each_entry_safe(c_node, tc_node,
+			&ippdrv->cmd_list, list) {
+			DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n",
+				count++, (int)ippdrv);
+
+			if (c_node->filp == file) {
+				/*
+				 * userland goto unnormal state. process killed.
+				 * and close the file.
+				 * so, IPP didn't called stop cmd ctrl.
+				 * so, we are make stop operation in this state.
+				 */
+				if (c_node->state == IPP_STATE_START) {
+					ipp_stop_property(drm_dev, ippdrv,
+						c_node);
+					c_node->state = IPP_STATE_STOP;
+				}
+
+				ippdrv->dedicated = false;
+				ipp_clean_cmd_node(ctx, c_node);
+				if (list_empty(&ippdrv->cmd_list))
+					pm_runtime_put_sync(ippdrv->dev);
+			}
+		}
+		mutex_unlock(&ippdrv->cmd_lock);
+	}
+
+	return;
+}
+
+static int ipp_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ipp_context *ctx;
+	struct exynos_drm_subdrv *subdrv;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	mutex_init(&ctx->ipp_lock);
+	mutex_init(&ctx->prop_lock);
+
+	idr_init(&ctx->ipp_idr);
+	idr_init(&ctx->prop_idr);
+
+	/*
+	 * create single thread for ipp event
+	 * IPP supports event thread for IPP drivers.
+	 * IPP driver send event_work to this thread.
+	 * and IPP event thread send event to user process.
+	 */
+	ctx->event_workq = create_singlethread_workqueue("ipp_event");
+	if (!ctx->event_workq) {
+		dev_err(dev, "failed to create event workqueue\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * create single thread for ipp command
+	 * IPP supports command thread for user process.
+	 * user process make command node using set property ioctl.
+	 * and make start_work and send this work to command thread.
+	 * and then this command thread start property.
+	 */
+	ctx->cmd_workq = create_singlethread_workqueue("ipp_cmd");
+	if (!ctx->cmd_workq) {
+		dev_err(dev, "failed to create cmd workqueue\n");
+		ret = -EINVAL;
+		goto err_event_workq;
+	}
+
+	/* set sub driver informations */
+	subdrv = &ctx->subdrv;
+	subdrv->dev = dev;
+	subdrv->probe = ipp_subdrv_probe;
+	subdrv->remove = ipp_subdrv_remove;
+	subdrv->open = ipp_subdrv_open;
+	subdrv->close = ipp_subdrv_close;
+
+	platform_set_drvdata(pdev, ctx);
+
+	ret = exynos_drm_subdrv_register(subdrv);
+	if (ret < 0) {
+		DRM_ERROR("failed to register drm ipp device.\n");
+		goto err_cmd_workq;
+	}
+
+	dev_info(dev, "drm ipp registered successfully.\n");
+
+	return 0;
+
+err_cmd_workq:
+	destroy_workqueue(ctx->cmd_workq);
+err_event_workq:
+	destroy_workqueue(ctx->event_workq);
+	return ret;
+}
+
+static int ipp_remove(struct platform_device *pdev)
+{
+	struct ipp_context *ctx = platform_get_drvdata(pdev);
+
+	/* unregister sub driver */
+	exynos_drm_subdrv_unregister(&ctx->subdrv);
+
+	/* remove,destroy ipp idr */
+	idr_destroy(&ctx->ipp_idr);
+	idr_destroy(&ctx->prop_idr);
+
+	mutex_destroy(&ctx->ipp_lock);
+	mutex_destroy(&ctx->prop_lock);
+
+	/* destroy command, event work queue */
+	destroy_workqueue(ctx->cmd_workq);
+	destroy_workqueue(ctx->event_workq);
+
+	return 0;
+}
+
+struct platform_driver ipp_driver = {
+	.probe		= ipp_probe,
+	.remove		= ipp_remove,
+	.driver		= {
+		.name	= "exynos-drm-ipp",
+		.owner	= THIS_MODULE,
+	},
+};
+
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.h
new file mode 100644
index 000000000..2a61547a3
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_ipp.h
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *	Jinyoung Jeon <jy0.jeon@samsung.com>
+ *	Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_IPP_H_
+#define _EXYNOS_DRM_IPP_H_
+
+#define for_each_ipp_ops(pos)	\
+	for (pos = 0; pos < EXYNOS_DRM_OPS_MAX; pos++)
+#define for_each_ipp_planar(pos)	\
+	for (pos = 0; pos < EXYNOS_DRM_PLANAR_MAX; pos++)
+
+#define IPP_GET_LCD_WIDTH	_IOR('F', 302, int)
+#define IPP_GET_LCD_HEIGHT	_IOR('F', 303, int)
+#define IPP_SET_WRITEBACK	_IOW('F', 304, u32)
+
+/* definition of state */
+enum drm_exynos_ipp_state {
+	IPP_STATE_IDLE,
+	IPP_STATE_START,
+	IPP_STATE_STOP,
+};
+
+/*
+ * A structure of command work information.
+ * @work: work structure.
+ * @ippdrv: current work ippdrv.
+ * @c_node: command node information.
+ * @ctrl: command control.
+ */
+struct drm_exynos_ipp_cmd_work {
+	struct work_struct	work;
+	struct exynos_drm_ippdrv	*ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	enum drm_exynos_ipp_ctrl	ctrl;
+};
+
+/*
+ * A structure of command node.
+ *
+ * @list: list head to command queue information.
+ * @event_list: list head of event.
+ * @mem_list: list head to source,destination memory queue information.
+ * @lock: lock for synchronization of access to ioctl.
+ * @mem_lock: lock for synchronization of access to memory nodes.
+ * @event_lock: lock for synchronization of access to scheduled event.
+ * @start_complete: completion of start of command.
+ * @stop_complete: completion of stop of command.
+ * @property: property information.
+ * @start_work: start command work structure.
+ * @stop_work: stop command work structure.
+ * @event_work: event work structure.
+ * @state: state of command node.
+ * @filp: associated file pointer.
+ */
+struct drm_exynos_ipp_cmd_node {
+	struct list_head	list;
+	struct list_head	event_list;
+	struct list_head	mem_list[EXYNOS_DRM_OPS_MAX];
+	struct mutex	lock;
+	struct mutex	mem_lock;
+	struct mutex	event_lock;
+	struct completion	start_complete;
+	struct completion	stop_complete;
+	struct drm_exynos_ipp_property	property;
+	struct drm_exynos_ipp_cmd_work *start_work;
+	struct drm_exynos_ipp_cmd_work *stop_work;
+	struct drm_exynos_ipp_event_work *event_work;
+	enum drm_exynos_ipp_state	state;
+	struct drm_file	*filp;
+};
+
+/*
+ * A structure of buffer information.
+ *
+ * @handles: Y, Cb, Cr each gem object handle.
+ * @base: Y, Cb, Cr each planar address.
+ */
+struct drm_exynos_ipp_buf_info {
+	unsigned long	handles[EXYNOS_DRM_PLANAR_MAX];
+	dma_addr_t	base[EXYNOS_DRM_PLANAR_MAX];
+};
+
+/*
+ * A structure of wb setting information.
+ *
+ * @enable: enable flag for wb.
+ * @refresh: HZ of the refresh rate.
+ */
+struct drm_exynos_ipp_set_wb {
+	__u32	enable;
+	__u32	refresh;
+};
+
+/*
+ * A structure of event work information.
+ *
+ * @work: work structure.
+ * @ippdrv: current work ippdrv.
+ * @buf_id: id of src, dst buffer.
+ */
+struct drm_exynos_ipp_event_work {
+	struct work_struct	work;
+	struct exynos_drm_ippdrv *ippdrv;
+	u32	buf_id[EXYNOS_DRM_OPS_MAX];
+};
+
+/*
+ * A structure of source,destination operations.
+ *
+ * @set_fmt: set format of image.
+ * @set_transf: set transform(rotations, flip).
+ * @set_size: set size of region.
+ * @set_addr: set address for dma.
+ */
+struct exynos_drm_ipp_ops {
+	int (*set_fmt)(struct device *dev, u32 fmt);
+	int (*set_transf)(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap);
+	int (*set_size)(struct device *dev, int swap,
+		struct drm_exynos_pos *pos, struct drm_exynos_sz *sz);
+	int (*set_addr)(struct device *dev,
+		 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+		enum drm_exynos_ipp_buf_type buf_type);
+};
+
+/*
+ * A structure of ipp driver.
+ *
+ * @drv_list: list head for registed sub driver information.
+ * @parent_dev: parent device information.
+ * @dev: platform device.
+ * @drm_dev: drm device.
+ * @dedicated: dedicated ipp device.
+ * @ops: source, destination operations.
+ * @event_workq: event work queue.
+ * @c_node: current command information.
+ * @cmd_list: list head for command information.
+ * @cmd_lock: lock for synchronization of access to cmd_list.
+ * @prop_list: property informations of current ipp driver.
+ * @check_property: check property about format, size, buffer.
+ * @reset: reset ipp block.
+ * @start: ipp each device start.
+ * @stop: ipp each device stop.
+ * @sched_event: work schedule handler.
+ */
+struct exynos_drm_ippdrv {
+	struct list_head	drv_list;
+	struct device	*parent_dev;
+	struct device	*dev;
+	struct drm_device	*drm_dev;
+	bool	dedicated;
+	struct exynos_drm_ipp_ops	*ops[EXYNOS_DRM_OPS_MAX];
+	struct workqueue_struct	*event_workq;
+	struct drm_exynos_ipp_cmd_node *c_node;
+	struct list_head	cmd_list;
+	struct mutex	cmd_lock;
+	struct drm_exynos_ipp_prop_list prop_list;
+
+	int (*check_property)(struct device *dev,
+		struct drm_exynos_ipp_property *property);
+	int (*reset)(struct device *dev);
+	int (*start)(struct device *dev, enum drm_exynos_ipp_cmd cmd);
+	void (*stop)(struct device *dev, enum drm_exynos_ipp_cmd cmd);
+	void (*sched_event)(struct work_struct *work);
+};
+
+#ifdef CONFIG_DRM_EXYNOS_IPP
+extern int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv);
+extern int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv);
+extern int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data,
+					 struct drm_file *file);
+extern int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
+					 struct drm_file *file);
+extern int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data,
+					 struct drm_file *file);
+extern int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data,
+					 struct drm_file *file);
+extern int exynos_drm_ippnb_register(struct notifier_block *nb);
+extern int exynos_drm_ippnb_unregister(struct notifier_block *nb);
+extern int exynos_drm_ippnb_send_event(unsigned long val, void *v);
+extern void ipp_sched_cmd(struct work_struct *work);
+extern void ipp_sched_event(struct work_struct *work);
+
+#else
+static inline int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_drm_ipp_get_property(struct drm_device *drm_dev,
+						void *data,
+						struct drm_file *file_priv)
+{
+	return -ENOTTY;
+}
+
+static inline int exynos_drm_ipp_set_property(struct drm_device *drm_dev,
+						void *data,
+						struct drm_file *file_priv)
+{
+	return -ENOTTY;
+}
+
+static inline int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev,
+						void *data,
+						struct drm_file *file)
+{
+	return -ENOTTY;
+}
+
+static inline int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev,
+						void *data,
+						struct drm_file *file)
+{
+	return -ENOTTY;
+}
+
+static inline int exynos_drm_ippnb_register(struct notifier_block *nb)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_drm_ippnb_unregister(struct notifier_block *nb)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_drm_ippnb_send_event(unsigned long val, void *v)
+{
+	return -ENOTTY;
+}
+#endif
+
+#endif /* _EXYNOS_DRM_IPP_H_ */
+
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.c
new file mode 100644
index 000000000..b1180fbe7
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <drm/drmP.h>
+
+#include <drm/exynos_drm.h>
+#include <drm/drm_plane_helper.h>
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_fb.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_plane.h"
+
+static const uint32_t formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_NV12,
+};
+
+/*
+ * This function is to get X or Y size shown via screen. This needs length and
+ * start position of CRTC.
+ *
+ *      <--- length --->
+ * CRTC ----------------
+ *      ^ start        ^ end
+ *
+ * There are six cases from a to f.
+ *
+ *             <----- SCREEN ----->
+ *             0                 last
+ *   ----------|------------------|----------
+ * CRTCs
+ * a -------
+ *        b -------
+ *        c --------------------------
+ *                 d --------
+ *                           e -------
+ *                                  f -------
+ */
+static int exynos_plane_get_size(int start, unsigned length, unsigned last)
+{
+	int end = start + length;
+	int size = 0;
+
+	if (start <= 0) {
+		if (end > 0)
+			size = min_t(unsigned, end, last);
+	} else if (start <= last) {
+		size = min_t(unsigned, last - start, length);
+	}
+
+	return size;
+}
+
+int exynos_check_plane(struct drm_plane *plane, struct drm_framebuffer *fb)
+{
+	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+	int nr;
+	int i;
+
+	nr = exynos_drm_fb_get_buf_cnt(fb);
+	for (i = 0; i < nr; i++) {
+		struct exynos_drm_gem_buf *buffer = exynos_drm_fb_buffer(fb, i);
+
+		if (!buffer) {
+			DRM_DEBUG_KMS("buffer is null\n");
+			return -EFAULT;
+		}
+
+		exynos_plane->dma_addr[i] = buffer->dma_addr + fb->offsets[i];
+
+		DRM_DEBUG_KMS("buffer: %d, dma_addr = 0x%lx\n",
+				i, (unsigned long)exynos_plane->dma_addr[i]);
+	}
+
+	return 0;
+}
+
+void exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
+			  struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			  unsigned int crtc_w, unsigned int crtc_h,
+			  uint32_t src_x, uint32_t src_y,
+			  uint32_t src_w, uint32_t src_h)
+{
+	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+	unsigned int actual_w;
+	unsigned int actual_h;
+
+	actual_w = exynos_plane_get_size(crtc_x, crtc_w, crtc->mode.hdisplay);
+	actual_h = exynos_plane_get_size(crtc_y, crtc_h, crtc->mode.vdisplay);
+
+	if (crtc_x < 0) {
+		if (actual_w)
+			src_x -= crtc_x;
+		crtc_x = 0;
+	}
+
+	if (crtc_y < 0) {
+		if (actual_h)
+			src_y -= crtc_y;
+		crtc_y = 0;
+	}
+
+	/* set ratio */
+	exynos_plane->h_ratio = (src_w << 16) / crtc_w;
+	exynos_plane->v_ratio = (src_h << 16) / crtc_h;
+
+	/* set drm framebuffer data. */
+	exynos_plane->src_x = src_x;
+	exynos_plane->src_y = src_y;
+	exynos_plane->src_width = (actual_w * exynos_plane->h_ratio) >> 16;
+	exynos_plane->src_height = (actual_h * exynos_plane->v_ratio) >> 16;
+	exynos_plane->fb_width = fb->width;
+	exynos_plane->fb_height = fb->height;
+	exynos_plane->bpp = fb->bits_per_pixel;
+	exynos_plane->pitch = fb->pitches[0];
+	exynos_plane->pixel_format = fb->pixel_format;
+
+	/* set plane range to be displayed. */
+	exynos_plane->crtc_x = crtc_x;
+	exynos_plane->crtc_y = crtc_y;
+	exynos_plane->crtc_width = actual_w;
+	exynos_plane->crtc_height = actual_h;
+
+	/* set drm mode data. */
+	exynos_plane->mode_width = crtc->mode.hdisplay;
+	exynos_plane->mode_height = crtc->mode.vdisplay;
+	exynos_plane->refresh = crtc->mode.vrefresh;
+	exynos_plane->scan_flag = crtc->mode.flags;
+
+	DRM_DEBUG_KMS("plane : offset_x/y(%d,%d), width/height(%d,%d)",
+			exynos_plane->crtc_x, exynos_plane->crtc_y,
+			exynos_plane->crtc_width, exynos_plane->crtc_height);
+
+	plane->crtc = crtc;
+}
+
+int
+exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+		     struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+		     unsigned int crtc_w, unsigned int crtc_h,
+		     uint32_t src_x, uint32_t src_y,
+		     uint32_t src_w, uint32_t src_h)
+{
+
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+	int ret;
+
+	ret = exynos_check_plane(plane, fb);
+	if (ret < 0)
+		return ret;
+
+	exynos_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y,
+			      crtc_w, crtc_h, src_x >> 16, src_y >> 16,
+			      src_w >> 16, src_h >> 16);
+
+	if (exynos_crtc->ops->win_commit)
+		exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
+
+	return 0;
+}
+
+static int exynos_disable_plane(struct drm_plane *plane)
+{
+	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(plane->crtc);
+
+	if (exynos_crtc && exynos_crtc->ops->win_disable)
+		exynos_crtc->ops->win_disable(exynos_crtc,
+					      exynos_plane->zpos);
+
+	return 0;
+}
+
+static struct drm_plane_funcs exynos_plane_funcs = {
+	.update_plane	= exynos_update_plane,
+	.disable_plane	= exynos_disable_plane,
+	.destroy	= drm_plane_cleanup,
+};
+
+static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
+					      unsigned int zpos)
+{
+	struct drm_device *dev = plane->dev;
+	struct exynos_drm_private *dev_priv = dev->dev_private;
+	struct drm_property *prop;
+
+	prop = dev_priv->plane_zpos_property;
+	if (!prop) {
+		prop = drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE,
+						 "zpos", 0, MAX_PLANE - 1);
+		if (!prop)
+			return;
+
+		dev_priv->plane_zpos_property = prop;
+	}
+
+	drm_object_attach_property(&plane->base, prop, zpos);
+}
+
+int exynos_plane_init(struct drm_device *dev,
+		      struct exynos_drm_plane *exynos_plane,
+		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      unsigned int zpos)
+{
+	int err;
+
+	err = drm_universal_plane_init(dev, &exynos_plane->base, possible_crtcs,
+				       &exynos_plane_funcs, formats,
+				       ARRAY_SIZE(formats), type);
+	if (err) {
+		DRM_ERROR("failed to initialize plane\n");
+		return err;
+	}
+
+	exynos_plane->zpos = zpos;
+
+	if (type == DRM_PLANE_TYPE_OVERLAY)
+		exynos_plane_attach_zpos_property(&exynos_plane->base, zpos);
+
+	return 0;
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.h
new file mode 100644
index 000000000..f360590d1
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_plane.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+int exynos_check_plane(struct drm_plane *plane, struct drm_framebuffer *fb);
+void exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
+			   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			   unsigned int crtc_w, unsigned int crtc_h,
+			   uint32_t src_x, uint32_t src_y,
+			   uint32_t src_w, uint32_t src_h);
+int exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+			struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			unsigned int crtc_w, unsigned int crtc_h,
+			uint32_t src_x, uint32_t src_y,
+			uint32_t src_w, uint32_t src_h);
+int exynos_plane_init(struct drm_device *dev,
+		      struct exynos_drm_plane *exynos_plane,
+		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      unsigned int zpos);
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.c
new file mode 100644
index 000000000..425e70625
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -0,0 +1,856 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ *	YoungJun Cho <yj44.cho@samsung.com>
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "regs-rotator.h"
+#include "exynos_drm.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_ipp.h"
+
+/*
+ * Rotator supports image crop/rotator and input/output DMA operations.
+ * input DMA reads image data from the memory.
+ * output DMA writes image data to memory.
+ *
+ * M2M operation : supports crop/scale/rotation/csc so on.
+ * Memory ----> Rotator H/W ----> Memory.
+ */
+
+/*
+ * TODO
+ * 1. check suspend/resume api if needed.
+ * 2. need to check use case platform_device_id.
+ * 3. check src/dst size with, height.
+ * 4. need to add supported list in prop_list.
+ */
+
+#define get_rot_context(dev)	platform_get_drvdata(to_platform_device(dev))
+#define get_ctx_from_ippdrv(ippdrv)	container_of(ippdrv,\
+					struct rot_context, ippdrv);
+#define rot_read(offset)		readl(rot->regs + (offset))
+#define rot_write(cfg, offset)	writel(cfg, rot->regs + (offset))
+
+enum rot_irq_status {
+	ROT_IRQ_STATUS_COMPLETE	= 8,
+	ROT_IRQ_STATUS_ILLEGAL	= 9,
+};
+
+/*
+ * A structure of limitation.
+ *
+ * @min_w: minimum width.
+ * @min_h: minimum height.
+ * @max_w: maximum width.
+ * @max_h: maximum height.
+ * @align: align size.
+ */
+struct rot_limit {
+	u32	min_w;
+	u32	min_h;
+	u32	max_w;
+	u32	max_h;
+	u32	align;
+};
+
+/*
+ * A structure of limitation table.
+ *
+ * @ycbcr420_2p: case of YUV.
+ * @rgb888: case of RGB.
+ */
+struct rot_limit_table {
+	struct rot_limit	ycbcr420_2p;
+	struct rot_limit	rgb888;
+};
+
+/*
+ * A structure of rotator context.
+ * @ippdrv: prepare initialization using ippdrv.
+ * @regs_res: register resources.
+ * @regs: memory mapped io registers.
+ * @clock: rotator gate clock.
+ * @limit_tbl: limitation of rotator.
+ * @irq: irq number.
+ * @cur_buf_id: current operation buffer id.
+ * @suspended: suspended state.
+ */
+struct rot_context {
+	struct exynos_drm_ippdrv	ippdrv;
+	struct resource	*regs_res;
+	void __iomem	*regs;
+	struct clk	*clock;
+	struct rot_limit_table	*limit_tbl;
+	int	irq;
+	int	cur_buf_id[EXYNOS_DRM_OPS_MAX];
+	bool	suspended;
+};
+
+static void rotator_reg_set_irq(struct rot_context *rot, bool enable)
+{
+	u32 val = rot_read(ROT_CONFIG);
+
+	if (enable == true)
+		val |= ROT_CONFIG_IRQ;
+	else
+		val &= ~ROT_CONFIG_IRQ;
+
+	rot_write(val, ROT_CONFIG);
+}
+
+static u32 rotator_reg_get_fmt(struct rot_context *rot)
+{
+	u32 val = rot_read(ROT_CONTROL);
+
+	val &= ROT_CONTROL_FMT_MASK;
+
+	return val;
+}
+
+static enum rot_irq_status rotator_reg_get_irq_status(struct rot_context *rot)
+{
+	u32 val = rot_read(ROT_STATUS);
+
+	val = ROT_STATUS_IRQ(val);
+
+	if (val == ROT_STATUS_IRQ_VAL_COMPLETE)
+		return ROT_IRQ_STATUS_COMPLETE;
+
+	return ROT_IRQ_STATUS_ILLEGAL;
+}
+
+static irqreturn_t rotator_irq_handler(int irq, void *arg)
+{
+	struct rot_context *rot = arg;
+	struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv;
+	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+	struct drm_exynos_ipp_event_work *event_work = c_node->event_work;
+	enum rot_irq_status irq_status;
+	u32 val;
+
+	/* Get execution result */
+	irq_status = rotator_reg_get_irq_status(rot);
+
+	/* clear status */
+	val = rot_read(ROT_STATUS);
+	val |= ROT_STATUS_IRQ_PENDING((u32)irq_status);
+	rot_write(val, ROT_STATUS);
+
+	if (irq_status == ROT_IRQ_STATUS_COMPLETE) {
+		event_work->ippdrv = ippdrv;
+		event_work->buf_id[EXYNOS_DRM_OPS_DST] =
+			rot->cur_buf_id[EXYNOS_DRM_OPS_DST];
+		queue_work(ippdrv->event_workq, &event_work->work);
+	} else {
+		DRM_ERROR("the SFR is set illegally\n");
+	}
+
+	return IRQ_HANDLED;
+}
+
+static void rotator_align_size(struct rot_context *rot, u32 fmt, u32 *hsize,
+		u32 *vsize)
+{
+	struct rot_limit_table *limit_tbl = rot->limit_tbl;
+	struct rot_limit *limit;
+	u32 mask, val;
+
+	/* Get size limit */
+	if (fmt == ROT_CONTROL_FMT_RGB888)
+		limit = &limit_tbl->rgb888;
+	else
+		limit = &limit_tbl->ycbcr420_2p;
+
+	/* Get mask for rounding to nearest aligned val */
+	mask = ~((1 << limit->align) - 1);
+
+	/* Set aligned width */
+	val = ROT_ALIGN(*hsize, limit->align, mask);
+	if (val < limit->min_w)
+		*hsize = ROT_MIN(limit->min_w, mask);
+	else if (val > limit->max_w)
+		*hsize = ROT_MAX(limit->max_w, mask);
+	else
+		*hsize = val;
+
+	/* Set aligned height */
+	val = ROT_ALIGN(*vsize, limit->align, mask);
+	if (val < limit->min_h)
+		*vsize = ROT_MIN(limit->min_h, mask);
+	else if (val > limit->max_h)
+		*vsize = ROT_MAX(limit->max_h, mask);
+	else
+		*vsize = val;
+}
+
+static int rotator_src_set_fmt(struct device *dev, u32 fmt)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	u32 val;
+
+	val = rot_read(ROT_CONTROL);
+	val &= ~ROT_CONTROL_FMT_MASK;
+
+	switch (fmt) {
+	case DRM_FORMAT_NV12:
+		val |= ROT_CONTROL_FMT_YCBCR420_2P;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		val |= ROT_CONTROL_FMT_RGB888;
+		break;
+	default:
+		DRM_ERROR("invalid image format\n");
+		return -EINVAL;
+	}
+
+	rot_write(val, ROT_CONTROL);
+
+	return 0;
+}
+
+static inline bool rotator_check_reg_fmt(u32 fmt)
+{
+	if ((fmt == ROT_CONTROL_FMT_YCBCR420_2P) ||
+	    (fmt == ROT_CONTROL_FMT_RGB888))
+		return true;
+
+	return false;
+}
+
+static int rotator_src_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos,
+		struct drm_exynos_sz *sz)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	u32 fmt, hsize, vsize;
+	u32 val;
+
+	/* Get format */
+	fmt = rotator_reg_get_fmt(rot);
+	if (!rotator_check_reg_fmt(fmt)) {
+		DRM_ERROR("invalid format.\n");
+		return -EINVAL;
+	}
+
+	/* Align buffer size */
+	hsize = sz->hsize;
+	vsize = sz->vsize;
+	rotator_align_size(rot, fmt, &hsize, &vsize);
+
+	/* Set buffer size configuration */
+	val = ROT_SET_BUF_SIZE_H(vsize) | ROT_SET_BUF_SIZE_W(hsize);
+	rot_write(val, ROT_SRC_BUF_SIZE);
+
+	/* Set crop image position configuration */
+	val = ROT_CROP_POS_Y(pos->y) | ROT_CROP_POS_X(pos->x);
+	rot_write(val, ROT_SRC_CROP_POS);
+	val = ROT_SRC_CROP_SIZE_H(pos->h) | ROT_SRC_CROP_SIZE_W(pos->w);
+	rot_write(val, ROT_SRC_CROP_SIZE);
+
+	return 0;
+}
+
+static int rotator_src_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info,
+		u32 buf_id, enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	dma_addr_t addr[EXYNOS_DRM_PLANAR_MAX];
+	u32 val, fmt, hsize, vsize;
+	int i;
+
+	/* Set current buf_id */
+	rot->cur_buf_id[EXYNOS_DRM_OPS_SRC] = buf_id;
+
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		/* Set address configuration */
+		for_each_ipp_planar(i)
+			addr[i] = buf_info->base[i];
+
+		/* Get format */
+		fmt = rotator_reg_get_fmt(rot);
+		if (!rotator_check_reg_fmt(fmt)) {
+			DRM_ERROR("invalid format.\n");
+			return -EINVAL;
+		}
+
+		/* Re-set cb planar for NV12 format */
+		if ((fmt == ROT_CONTROL_FMT_YCBCR420_2P) &&
+		    !addr[EXYNOS_DRM_PLANAR_CB]) {
+
+			val = rot_read(ROT_SRC_BUF_SIZE);
+			hsize = ROT_GET_BUF_SIZE_W(val);
+			vsize = ROT_GET_BUF_SIZE_H(val);
+
+			/* Set cb planar */
+			addr[EXYNOS_DRM_PLANAR_CB] =
+				addr[EXYNOS_DRM_PLANAR_Y] + hsize * vsize;
+		}
+
+		for_each_ipp_planar(i)
+			rot_write(addr[i], ROT_SRC_BUF_ADDR(i));
+		break;
+	case IPP_BUF_DEQUEUE:
+		for_each_ipp_planar(i)
+			rot_write(0x0, ROT_SRC_BUF_ADDR(i));
+		break;
+	default:
+		/* Nothing to do */
+		break;
+	}
+
+	return 0;
+}
+
+static int rotator_dst_set_transf(struct device *dev,
+		enum drm_exynos_degree degree,
+		enum drm_exynos_flip flip, bool *swap)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	u32 val;
+
+	/* Set transform configuration */
+	val = rot_read(ROT_CONTROL);
+	val &= ~ROT_CONTROL_FLIP_MASK;
+
+	switch (flip) {
+	case EXYNOS_DRM_FLIP_VERTICAL:
+		val |= ROT_CONTROL_FLIP_VERTICAL;
+		break;
+	case EXYNOS_DRM_FLIP_HORIZONTAL:
+		val |= ROT_CONTROL_FLIP_HORIZONTAL;
+		break;
+	default:
+		/* Flip None */
+		break;
+	}
+
+	val &= ~ROT_CONTROL_ROT_MASK;
+
+	switch (degree) {
+	case EXYNOS_DRM_DEGREE_90:
+		val |= ROT_CONTROL_ROT_90;
+		break;
+	case EXYNOS_DRM_DEGREE_180:
+		val |= ROT_CONTROL_ROT_180;
+		break;
+	case EXYNOS_DRM_DEGREE_270:
+		val |= ROT_CONTROL_ROT_270;
+		break;
+	default:
+		/* Rotation 0 Degree */
+		break;
+	}
+
+	rot_write(val, ROT_CONTROL);
+
+	/* Check degree for setting buffer size swap */
+	if ((degree == EXYNOS_DRM_DEGREE_90) ||
+	    (degree == EXYNOS_DRM_DEGREE_270))
+		*swap = true;
+	else
+		*swap = false;
+
+	return 0;
+}
+
+static int rotator_dst_set_size(struct device *dev, int swap,
+		struct drm_exynos_pos *pos,
+		struct drm_exynos_sz *sz)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	u32 val, fmt, hsize, vsize;
+
+	/* Get format */
+	fmt = rotator_reg_get_fmt(rot);
+	if (!rotator_check_reg_fmt(fmt)) {
+		DRM_ERROR("invalid format.\n");
+		return -EINVAL;
+	}
+
+	/* Align buffer size */
+	hsize = sz->hsize;
+	vsize = sz->vsize;
+	rotator_align_size(rot, fmt, &hsize, &vsize);
+
+	/* Set buffer size configuration */
+	val = ROT_SET_BUF_SIZE_H(vsize) | ROT_SET_BUF_SIZE_W(hsize);
+	rot_write(val, ROT_DST_BUF_SIZE);
+
+	/* Set crop image position configuration */
+	val = ROT_CROP_POS_Y(pos->y) | ROT_CROP_POS_X(pos->x);
+	rot_write(val, ROT_DST_CROP_POS);
+
+	return 0;
+}
+
+static int rotator_dst_set_addr(struct device *dev,
+		struct drm_exynos_ipp_buf_info *buf_info,
+		u32 buf_id, enum drm_exynos_ipp_buf_type buf_type)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	dma_addr_t addr[EXYNOS_DRM_PLANAR_MAX];
+	u32 val, fmt, hsize, vsize;
+	int i;
+
+	/* Set current buf_id */
+	rot->cur_buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
+
+	switch (buf_type) {
+	case IPP_BUF_ENQUEUE:
+		/* Set address configuration */
+		for_each_ipp_planar(i)
+			addr[i] = buf_info->base[i];
+
+		/* Get format */
+		fmt = rotator_reg_get_fmt(rot);
+		if (!rotator_check_reg_fmt(fmt)) {
+			DRM_ERROR("invalid format.\n");
+			return -EINVAL;
+		}
+
+		/* Re-set cb planar for NV12 format */
+		if ((fmt == ROT_CONTROL_FMT_YCBCR420_2P) &&
+		    !addr[EXYNOS_DRM_PLANAR_CB]) {
+			/* Get buf size */
+			val = rot_read(ROT_DST_BUF_SIZE);
+
+			hsize = ROT_GET_BUF_SIZE_W(val);
+			vsize = ROT_GET_BUF_SIZE_H(val);
+
+			/* Set cb planar */
+			addr[EXYNOS_DRM_PLANAR_CB] =
+				addr[EXYNOS_DRM_PLANAR_Y] + hsize * vsize;
+		}
+
+		for_each_ipp_planar(i)
+			rot_write(addr[i], ROT_DST_BUF_ADDR(i));
+		break;
+	case IPP_BUF_DEQUEUE:
+		for_each_ipp_planar(i)
+			rot_write(0x0, ROT_DST_BUF_ADDR(i));
+		break;
+	default:
+		/* Nothing to do */
+		break;
+	}
+
+	return 0;
+}
+
+static struct exynos_drm_ipp_ops rot_src_ops = {
+	.set_fmt	=	rotator_src_set_fmt,
+	.set_size	=	rotator_src_set_size,
+	.set_addr	=	rotator_src_set_addr,
+};
+
+static struct exynos_drm_ipp_ops rot_dst_ops = {
+	.set_transf	=	rotator_dst_set_transf,
+	.set_size	=	rotator_dst_set_size,
+	.set_addr	=	rotator_dst_set_addr,
+};
+
+static int rotator_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
+{
+	struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
+
+	prop_list->version = 1;
+	prop_list->flip = (1 << EXYNOS_DRM_FLIP_VERTICAL) |
+				(1 << EXYNOS_DRM_FLIP_HORIZONTAL);
+	prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
+				(1 << EXYNOS_DRM_DEGREE_90) |
+				(1 << EXYNOS_DRM_DEGREE_180) |
+				(1 << EXYNOS_DRM_DEGREE_270);
+	prop_list->csc = 0;
+	prop_list->crop = 0;
+	prop_list->scale = 0;
+
+	return 0;
+}
+
+static inline bool rotator_check_drm_fmt(u32 fmt)
+{
+	switch (fmt) {
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_NV12:
+		return true;
+	default:
+		DRM_DEBUG_KMS("not support format\n");
+		return false;
+	}
+}
+
+static inline bool rotator_check_drm_flip(enum drm_exynos_flip flip)
+{
+	switch (flip) {
+	case EXYNOS_DRM_FLIP_NONE:
+	case EXYNOS_DRM_FLIP_VERTICAL:
+	case EXYNOS_DRM_FLIP_HORIZONTAL:
+	case EXYNOS_DRM_FLIP_BOTH:
+		return true;
+	default:
+		DRM_DEBUG_KMS("invalid flip\n");
+		return false;
+	}
+}
+
+static int rotator_ippdrv_check_property(struct device *dev,
+		struct drm_exynos_ipp_property *property)
+{
+	struct drm_exynos_ipp_config *src_config =
+					&property->config[EXYNOS_DRM_OPS_SRC];
+	struct drm_exynos_ipp_config *dst_config =
+					&property->config[EXYNOS_DRM_OPS_DST];
+	struct drm_exynos_pos *src_pos = &src_config->pos;
+	struct drm_exynos_pos *dst_pos = &dst_config->pos;
+	struct drm_exynos_sz *src_sz = &src_config->sz;
+	struct drm_exynos_sz *dst_sz = &dst_config->sz;
+	bool swap = false;
+
+	/* Check format configuration */
+	if (src_config->fmt != dst_config->fmt) {
+		DRM_DEBUG_KMS("not support csc feature\n");
+		return -EINVAL;
+	}
+
+	if (!rotator_check_drm_fmt(dst_config->fmt)) {
+		DRM_DEBUG_KMS("invalid format\n");
+		return -EINVAL;
+	}
+
+	/* Check transform configuration */
+	if (src_config->degree != EXYNOS_DRM_DEGREE_0) {
+		DRM_DEBUG_KMS("not support source-side rotation\n");
+		return -EINVAL;
+	}
+
+	switch (dst_config->degree) {
+	case EXYNOS_DRM_DEGREE_90:
+	case EXYNOS_DRM_DEGREE_270:
+		swap = true;
+	case EXYNOS_DRM_DEGREE_0:
+	case EXYNOS_DRM_DEGREE_180:
+		/* No problem */
+		break;
+	default:
+		DRM_DEBUG_KMS("invalid degree\n");
+		return -EINVAL;
+	}
+
+	if (src_config->flip != EXYNOS_DRM_FLIP_NONE) {
+		DRM_DEBUG_KMS("not support source-side flip\n");
+		return -EINVAL;
+	}
+
+	if (!rotator_check_drm_flip(dst_config->flip)) {
+		DRM_DEBUG_KMS("invalid flip\n");
+		return -EINVAL;
+	}
+
+	/* Check size configuration */
+	if ((src_pos->x + src_pos->w > src_sz->hsize) ||
+		(src_pos->y + src_pos->h > src_sz->vsize)) {
+		DRM_DEBUG_KMS("out of source buffer bound\n");
+		return -EINVAL;
+	}
+
+	if (swap) {
+		if ((dst_pos->x + dst_pos->h > dst_sz->vsize) ||
+			(dst_pos->y + dst_pos->w > dst_sz->hsize)) {
+			DRM_DEBUG_KMS("out of destination buffer bound\n");
+			return -EINVAL;
+		}
+
+		if ((src_pos->w != dst_pos->h) || (src_pos->h != dst_pos->w)) {
+			DRM_DEBUG_KMS("not support scale feature\n");
+			return -EINVAL;
+		}
+	} else {
+		if ((dst_pos->x + dst_pos->w > dst_sz->hsize) ||
+			(dst_pos->y + dst_pos->h > dst_sz->vsize)) {
+			DRM_DEBUG_KMS("out of destination buffer bound\n");
+			return -EINVAL;
+		}
+
+		if ((src_pos->w != dst_pos->w) || (src_pos->h != dst_pos->h)) {
+			DRM_DEBUG_KMS("not support scale feature\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int rotator_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+	u32 val;
+
+	if (rot->suspended) {
+		DRM_ERROR("suspended state\n");
+		return -EPERM;
+	}
+
+	if (cmd != IPP_CMD_M2M) {
+		DRM_ERROR("not support cmd: %d\n", cmd);
+		return -EINVAL;
+	}
+
+	/* Set interrupt enable */
+	rotator_reg_set_irq(rot, true);
+
+	val = rot_read(ROT_CONTROL);
+	val |= ROT_CONTROL_START;
+
+	rot_write(val, ROT_CONTROL);
+
+	return 0;
+}
+
+static struct rot_limit_table rot_limit_tbl_4210 = {
+	.ycbcr420_2p = {
+		.min_w = 32,
+		.min_h = 32,
+		.max_w = SZ_64K,
+		.max_h = SZ_64K,
+		.align = 3,
+	},
+	.rgb888 = {
+		.min_w = 8,
+		.min_h = 8,
+		.max_w = SZ_16K,
+		.max_h = SZ_16K,
+		.align = 2,
+	},
+};
+
+static struct rot_limit_table rot_limit_tbl_4x12 = {
+	.ycbcr420_2p = {
+		.min_w = 32,
+		.min_h = 32,
+		.max_w = SZ_32K,
+		.max_h = SZ_32K,
+		.align = 3,
+	},
+	.rgb888 = {
+		.min_w = 8,
+		.min_h = 8,
+		.max_w = SZ_8K,
+		.max_h = SZ_8K,
+		.align = 2,
+	},
+};
+
+static struct rot_limit_table rot_limit_tbl_5250 = {
+	.ycbcr420_2p = {
+		.min_w = 32,
+		.min_h = 32,
+		.max_w = SZ_32K,
+		.max_h = SZ_32K,
+		.align = 3,
+	},
+	.rgb888 = {
+		.min_w = 8,
+		.min_h = 8,
+		.max_w = SZ_8K,
+		.max_h = SZ_8K,
+		.align = 1,
+	},
+};
+
+static const struct of_device_id exynos_rotator_match[] = {
+	{
+		.compatible = "samsung,exynos4210-rotator",
+		.data = &rot_limit_tbl_4210,
+	},
+	{
+		.compatible = "samsung,exynos4212-rotator",
+		.data = &rot_limit_tbl_4x12,
+	},
+	{
+		.compatible = "samsung,exynos5250-rotator",
+		.data = &rot_limit_tbl_5250,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_rotator_match);
+
+static int rotator_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rot_context *rot;
+	struct exynos_drm_ippdrv *ippdrv;
+	const struct of_device_id *match;
+	int ret;
+
+	if (!dev->of_node) {
+		dev_err(dev, "cannot find of_node.\n");
+		return -ENODEV;
+	}
+
+	rot = devm_kzalloc(dev, sizeof(*rot), GFP_KERNEL);
+	if (!rot)
+		return -ENOMEM;
+
+	match = of_match_node(exynos_rotator_match, dev->of_node);
+	if (!match) {
+		dev_err(dev, "failed to match node\n");
+		return -ENODEV;
+	}
+	rot->limit_tbl = (struct rot_limit_table *)match->data;
+
+	rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	rot->regs = devm_ioremap_resource(dev, rot->regs_res);
+	if (IS_ERR(rot->regs))
+		return PTR_ERR(rot->regs);
+
+	rot->irq = platform_get_irq(pdev, 0);
+	if (rot->irq < 0) {
+		dev_err(dev, "failed to get irq\n");
+		return rot->irq;
+	}
+
+	ret = devm_request_threaded_irq(dev, rot->irq, NULL,
+			rotator_irq_handler, IRQF_ONESHOT, "drm_rotator", rot);
+	if (ret < 0) {
+		dev_err(dev, "failed to request irq\n");
+		return ret;
+	}
+
+	rot->clock = devm_clk_get(dev, "rotator");
+	if (IS_ERR(rot->clock)) {
+		dev_err(dev, "failed to get clock\n");
+		return PTR_ERR(rot->clock);
+	}
+
+	pm_runtime_enable(dev);
+
+	ippdrv = &rot->ippdrv;
+	ippdrv->dev = dev;
+	ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &rot_src_ops;
+	ippdrv->ops[EXYNOS_DRM_OPS_DST] = &rot_dst_ops;
+	ippdrv->check_property = rotator_ippdrv_check_property;
+	ippdrv->start = rotator_ippdrv_start;
+	ret = rotator_init_prop_list(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to init property list.\n");
+		goto err_ippdrv_register;
+	}
+
+	DRM_DEBUG_KMS("ippdrv[0x%x]\n", (int)ippdrv);
+
+	platform_set_drvdata(pdev, rot);
+
+	ret = exynos_drm_ippdrv_register(ippdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to register drm rotator device\n");
+		goto err_ippdrv_register;
+	}
+
+	dev_info(dev, "The exynos rotator is probed successfully\n");
+
+	return 0;
+
+err_ippdrv_register:
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static int rotator_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rot_context *rot = dev_get_drvdata(dev);
+	struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv;
+
+	exynos_drm_ippdrv_unregister(ippdrv);
+
+	pm_runtime_disable(dev);
+
+	return 0;
+}
+
+static int rotator_clk_crtl(struct rot_context *rot, bool enable)
+{
+	if (enable) {
+		clk_enable(rot->clock);
+		rot->suspended = false;
+	} else {
+		clk_disable(rot->clock);
+		rot->suspended = true;
+	}
+
+	return 0;
+}
+
+
+#ifdef CONFIG_PM_SLEEP
+static int rotator_suspend(struct device *dev)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	return rotator_clk_crtl(rot, false);
+}
+
+static int rotator_resume(struct device *dev)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+
+	if (!pm_runtime_suspended(dev))
+		return rotator_clk_crtl(rot, true);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM
+static int rotator_runtime_suspend(struct device *dev)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+
+	return  rotator_clk_crtl(rot, false);
+}
+
+static int rotator_runtime_resume(struct device *dev)
+{
+	struct rot_context *rot = dev_get_drvdata(dev);
+
+	return  rotator_clk_crtl(rot, true);
+}
+#endif
+
+static const struct dev_pm_ops rotator_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(rotator_suspend, rotator_resume)
+	SET_RUNTIME_PM_OPS(rotator_runtime_suspend, rotator_runtime_resume,
+									NULL)
+};
+
+struct platform_driver rotator_driver = {
+	.probe		= rotator_probe,
+	.remove		= rotator_remove,
+	.driver		= {
+		.name	= "exynos-rot",
+		.owner	= THIS_MODULE,
+		.pm	= &rotator_pm_ops,
+		.of_match_table = exynos_rotator_match,
+	},
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.h
new file mode 100644
index 000000000..71a0b4c0c
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_rotator.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ *	YoungJun Cho <yj44.cho@samsung.com>
+ *	Eunchul Kim <chulspro.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef	_EXYNOS_DRM_ROTATOR_H_
+#define	_EXYNOS_DRM_ROTATOR_H_
+
+/* TODO */
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.c
new file mode 100644
index 000000000..1b3479a8d
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -0,0 +1,621 @@
+/* exynos_drm_vidi.c
+ *
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <drm/drmP.h>
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/component.h>
+
+#include <drm/exynos_drm.h>
+
+#include <drm/drm_edid.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
+#include "exynos_drm_encoder.h"
+#include "exynos_drm_vidi.h"
+
+/* vidi has totally three virtual windows. */
+#define WINDOWS_NR		3
+
+#define ctx_from_connector(c)	container_of(c, struct vidi_context, \
+					connector)
+
+struct vidi_context {
+	struct exynos_drm_display	display;
+	struct platform_device		*pdev;
+	struct drm_device		*drm_dev;
+	struct exynos_drm_crtc		*crtc;
+	struct drm_encoder		*encoder;
+	struct drm_connector		connector;
+	struct exynos_drm_plane		planes[WINDOWS_NR];
+	struct edid			*raw_edid;
+	unsigned int			clkdiv;
+	unsigned int			default_win;
+	unsigned long			irq_flags;
+	unsigned int			connected;
+	bool				vblank_on;
+	bool				suspended;
+	bool				direct_vblank;
+	struct work_struct		work;
+	struct mutex			lock;
+	int				pipe;
+};
+
+static inline struct vidi_context *display_to_vidi(struct exynos_drm_display *d)
+{
+	return container_of(d, struct vidi_context, display);
+}
+
+static const char fake_edid_info[] = {
+	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05,
+	0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78,
+	0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd,
+	0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00,
+	0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e,
+	0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00,
+	0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18,
+	0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+	0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47,
+	0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1,
+	0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83,
+	0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00,
+	0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c,
+	0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a,
+	0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00,
+	0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
+	0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x06
+};
+
+static int vidi_enable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct vidi_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return -EPERM;
+
+	if (!test_and_set_bit(0, &ctx->irq_flags))
+		ctx->vblank_on = true;
+
+	ctx->direct_vblank = true;
+
+	/*
+	 * in case of page flip request, vidi_finish_pageflip function
+	 * will not be called because direct_vblank is true and then
+	 * that function will be called by crtc_ops->win_commit callback
+	 */
+	schedule_work(&ctx->work);
+
+	return 0;
+}
+
+static void vidi_disable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct vidi_context *ctx = crtc->ctx;
+
+	if (ctx->suspended)
+		return;
+
+	if (test_and_clear_bit(0, &ctx->irq_flags))
+		ctx->vblank_on = false;
+}
+
+static void vidi_win_commit(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct vidi_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+
+	if (ctx->suspended)
+		return;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+
+	plane->enabled = true;
+
+	DRM_DEBUG_KMS("dma_addr = %pad\n", plane->dma_addr);
+
+	if (ctx->vblank_on)
+		schedule_work(&ctx->work);
+}
+
+static void vidi_win_disable(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct vidi_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+
+	if (win < 0 || win >= WINDOWS_NR)
+		return;
+
+	plane = &ctx->planes[win];
+	plane->enabled = false;
+
+	/* TODO. */
+}
+
+static int vidi_power_on(struct vidi_context *ctx, bool enable)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (enable != false && enable != true)
+		return -EINVAL;
+
+	if (enable) {
+		ctx->suspended = false;
+
+		/* if vblank was enabled status, enable it again. */
+		if (test_and_clear_bit(0, &ctx->irq_flags))
+			vidi_enable_vblank(ctx->crtc);
+
+		for (i = 0; i < WINDOWS_NR; i++) {
+			plane = &ctx->planes[i];
+			if (plane->enabled)
+				vidi_win_commit(ctx->crtc, i);
+		}
+	} else {
+		ctx->suspended = true;
+	}
+
+	return 0;
+}
+
+static void vidi_dpms(struct exynos_drm_crtc *crtc, int mode)
+{
+	struct vidi_context *ctx = crtc->ctx;
+
+	DRM_DEBUG_KMS("%d\n", mode);
+
+	mutex_lock(&ctx->lock);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		vidi_power_on(ctx, true);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		vidi_power_on(ctx, false);
+		break;
+	default:
+		DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+		break;
+	}
+
+	mutex_unlock(&ctx->lock);
+}
+
+static int vidi_ctx_initialize(struct vidi_context *ctx,
+			struct drm_device *drm_dev)
+{
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+
+	ctx->drm_dev = drm_dev;
+	ctx->pipe = priv->pipe++;
+
+	return 0;
+}
+
+static const struct exynos_drm_crtc_ops vidi_crtc_ops = {
+	.dpms = vidi_dpms,
+	.enable_vblank = vidi_enable_vblank,
+	.disable_vblank = vidi_disable_vblank,
+	.win_commit = vidi_win_commit,
+	.win_disable = vidi_win_disable,
+};
+
+static void vidi_fake_vblank_handler(struct work_struct *work)
+{
+	struct vidi_context *ctx = container_of(work, struct vidi_context,
+					work);
+
+	if (ctx->pipe < 0)
+		return;
+
+	/* refresh rate is about 50Hz. */
+	usleep_range(16000, 20000);
+
+	mutex_lock(&ctx->lock);
+
+	if (ctx->direct_vblank) {
+		drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+		ctx->direct_vblank = false;
+		mutex_unlock(&ctx->lock);
+		return;
+	}
+
+	mutex_unlock(&ctx->lock);
+
+	exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
+}
+
+static int vidi_show_connection(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct vidi_context *ctx = dev_get_drvdata(dev);
+	int rc;
+
+	mutex_lock(&ctx->lock);
+
+	rc = sprintf(buf, "%d\n", ctx->connected);
+
+	mutex_unlock(&ctx->lock);
+
+	return rc;
+}
+
+static int vidi_store_connection(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t len)
+{
+	struct vidi_context *ctx = dev_get_drvdata(dev);
+	int ret;
+
+	ret = kstrtoint(buf, 0, &ctx->connected);
+	if (ret)
+		return ret;
+
+	if (ctx->connected > 1)
+		return -EINVAL;
+
+	/* use fake edid data for test. */
+	if (!ctx->raw_edid)
+		ctx->raw_edid = (struct edid *)fake_edid_info;
+
+	/* if raw_edid isn't same as fake data then it can't be tested. */
+	if (ctx->raw_edid != (struct edid *)fake_edid_info) {
+		DRM_DEBUG_KMS("edid data is not fake data.\n");
+		return -EINVAL;
+	}
+
+	DRM_DEBUG_KMS("requested connection.\n");
+
+	drm_helper_hpd_irq_event(ctx->drm_dev);
+
+	return len;
+}
+
+static DEVICE_ATTR(connection, 0644, vidi_show_connection,
+			vidi_store_connection);
+
+int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
+				struct drm_file *file_priv)
+{
+	struct vidi_context *ctx = NULL;
+	struct drm_encoder *encoder;
+	struct exynos_drm_display *display;
+	struct drm_exynos_vidi_connection *vidi = data;
+
+	if (!vidi) {
+		DRM_DEBUG_KMS("user data for vidi is null.\n");
+		return -EINVAL;
+	}
+
+	if (vidi->connection > 1) {
+		DRM_DEBUG_KMS("connection should be 0 or 1.\n");
+		return -EINVAL;
+	}
+
+	list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list,
+								head) {
+		display = exynos_drm_get_display(encoder);
+
+		if (display->type == EXYNOS_DISPLAY_TYPE_VIDI) {
+			ctx = display_to_vidi(display);
+			break;
+		}
+	}
+
+	if (!ctx) {
+		DRM_DEBUG_KMS("not found virtual device type encoder.\n");
+		return -EINVAL;
+	}
+
+	if (ctx->connected == vidi->connection) {
+		DRM_DEBUG_KMS("same connection request.\n");
+		return -EINVAL;
+	}
+
+	if (vidi->connection) {
+		struct edid *raw_edid  = (struct edid *)(uint32_t)vidi->edid;
+		if (!drm_edid_is_valid(raw_edid)) {
+			DRM_DEBUG_KMS("edid data is invalid.\n");
+			return -EINVAL;
+		}
+		ctx->raw_edid = drm_edid_duplicate(raw_edid);
+		if (!ctx->raw_edid) {
+			DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
+			return -ENOMEM;
+		}
+	} else {
+		/*
+		 * with connection = 0, free raw_edid
+		 * only if raw edid data isn't same as fake data.
+		 */
+		if (ctx->raw_edid && ctx->raw_edid !=
+				(struct edid *)fake_edid_info) {
+			kfree(ctx->raw_edid);
+			ctx->raw_edid = NULL;
+		}
+	}
+
+	ctx->connected = vidi->connection;
+	drm_helper_hpd_irq_event(ctx->drm_dev);
+
+	return 0;
+}
+
+static enum drm_connector_status vidi_detect(struct drm_connector *connector,
+			bool force)
+{
+	struct vidi_context *ctx = ctx_from_connector(connector);
+
+	/*
+	 * connection request would come from user side
+	 * to do hotplug through specific ioctl.
+	 */
+	return ctx->connected ? connector_status_connected :
+			connector_status_disconnected;
+}
+
+static void vidi_connector_destroy(struct drm_connector *connector)
+{
+}
+
+static struct drm_connector_funcs vidi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = vidi_detect,
+	.destroy = vidi_connector_destroy,
+};
+
+static int vidi_get_modes(struct drm_connector *connector)
+{
+	struct vidi_context *ctx = ctx_from_connector(connector);
+	struct edid *edid;
+	int edid_len;
+
+	/*
+	 * the edid data comes from user side and it would be set
+	 * to ctx->raw_edid through specific ioctl.
+	 */
+	if (!ctx->raw_edid) {
+		DRM_DEBUG_KMS("raw_edid is null.\n");
+		return -EFAULT;
+	}
+
+	edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
+	edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
+	if (!edid) {
+		DRM_DEBUG_KMS("failed to allocate edid\n");
+		return -ENOMEM;
+	}
+
+	drm_mode_connector_update_edid_property(connector, edid);
+
+	return drm_add_edid_modes(connector, edid);
+}
+
+static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector)
+{
+	struct vidi_context *ctx = ctx_from_connector(connector);
+
+	return ctx->encoder;
+}
+
+static struct drm_connector_helper_funcs vidi_connector_helper_funcs = {
+	.get_modes = vidi_get_modes,
+	.best_encoder = vidi_best_encoder,
+};
+
+static int vidi_create_connector(struct exynos_drm_display *display,
+				struct drm_encoder *encoder)
+{
+	struct vidi_context *ctx = display_to_vidi(display);
+	struct drm_connector *connector = &ctx->connector;
+	int ret;
+
+	ctx->encoder = encoder;
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	ret = drm_connector_init(ctx->drm_dev, connector,
+			&vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	drm_connector_helper_add(connector, &vidi_connector_helper_funcs);
+	drm_connector_register(connector);
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	return 0;
+}
+
+
+static struct exynos_drm_display_ops vidi_display_ops = {
+	.create_connector = vidi_create_connector,
+};
+
+static int vidi_bind(struct device *dev, struct device *master, void *data)
+{
+	struct vidi_context *ctx = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	unsigned int zpos;
+	int ret;
+
+	vidi_ctx_initialize(ctx, drm_dev);
+
+	for (zpos = 0; zpos < WINDOWS_NR; zpos++) {
+		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
+					1 << ctx->pipe, type, zpos);
+		if (ret)
+			return ret;
+	}
+
+	exynos_plane = &ctx->planes[ctx->default_win];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_VIDI,
+					   &vidi_crtc_ops, ctx);
+	if (IS_ERR(ctx->crtc)) {
+		DRM_ERROR("failed to create crtc.\n");
+		return PTR_ERR(ctx->crtc);
+	}
+
+	ret = exynos_drm_create_enc_conn(drm_dev, &ctx->display);
+	if (ret) {
+		ctx->crtc->base.funcs->destroy(&ctx->crtc->base);
+		return ret;
+	}
+
+	return 0;
+}
+
+
+static void vidi_unbind(struct device *dev, struct device *master, void *data)
+{
+}
+
+static const struct component_ops vidi_component_ops = {
+	.bind	= vidi_bind,
+	.unbind = vidi_unbind,
+};
+
+static int vidi_probe(struct platform_device *pdev)
+{
+	struct vidi_context *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->display.type = EXYNOS_DISPLAY_TYPE_VIDI;
+	ctx->display.ops = &vidi_display_ops;
+	ctx->default_win = 0;
+	ctx->pdev = pdev;
+
+	ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC,
+					EXYNOS_DISPLAY_TYPE_VIDI);
+	if (ret)
+		return ret;
+
+	ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR,
+					ctx->display.type);
+	if (ret)
+		goto err_del_crtc_component;
+
+	INIT_WORK(&ctx->work, vidi_fake_vblank_handler);
+
+	mutex_init(&ctx->lock);
+
+	platform_set_drvdata(pdev, ctx);
+
+	ret = device_create_file(&pdev->dev, &dev_attr_connection);
+	if (ret < 0) {
+		DRM_ERROR("failed to create connection sysfs.\n");
+		goto err_del_conn_component;
+	}
+
+	ret = component_add(&pdev->dev, &vidi_component_ops);
+	if (ret)
+		goto err_remove_file;
+
+	return ret;
+
+err_remove_file:
+	device_remove_file(&pdev->dev, &dev_attr_connection);
+err_del_conn_component:
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+err_del_crtc_component:
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+
+	return ret;
+}
+
+static int vidi_remove(struct platform_device *pdev)
+{
+	struct vidi_context *ctx = platform_get_drvdata(pdev);
+
+	if (ctx->raw_edid != (struct edid *)fake_edid_info) {
+		kfree(ctx->raw_edid);
+		ctx->raw_edid = NULL;
+
+		return -EINVAL;
+	}
+
+	component_del(&pdev->dev, &vidi_component_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+
+	return 0;
+}
+
+struct platform_driver vidi_driver = {
+	.probe		= vidi_probe,
+	.remove		= vidi_remove,
+	.driver		= {
+		.name	= "exynos-drm-vidi",
+		.owner	= THIS_MODULE,
+	},
+};
+
+int exynos_drm_probe_vidi(void)
+{
+	struct platform_device *pdev;
+	int ret;
+
+	pdev = platform_device_register_simple("exynos-drm-vidi", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	ret = platform_driver_register(&vidi_driver);
+	if (ret) {
+		platform_device_unregister(pdev);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int exynos_drm_remove_vidi_device(struct device *dev, void *data)
+{
+	platform_device_unregister(to_platform_device(dev));
+
+	return 0;
+}
+
+void exynos_drm_remove_vidi(void)
+{
+	int ret = driver_for_each_device(&vidi_driver.driver, NULL, NULL,
+					 exynos_drm_remove_vidi_device);
+	/* silence compiler warning */
+	(void)ret;
+
+	platform_driver_unregister(&vidi_driver);
+}
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.h b/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.h
new file mode 100644
index 000000000..1e5fdaa36
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_drm_vidi.h
@@ -0,0 +1,22 @@
+/* exynos_drm_vidi.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _EXYNOS_DRM_VIDI_H_
+#define _EXYNOS_DRM_VIDI_H_
+
+#ifdef CONFIG_DRM_EXYNOS_VIDI
+int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
+				struct drm_file *file_priv);
+#else
+#define vidi_connection_ioctl	NULL
+#endif
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_hdmi.c b/kernel/drivers/gpu/drm/exynos/exynos_hdmi.c
new file mode 100644
index 000000000..5eba971f3
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -0,0 +1,2528 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on drivers/media/video/s5p-tv/hdmi_drv.c
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "regs-hdmi.h"
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_gpio.h>
+#include <linux/hdmi.h>
+#include <linux/component.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_mixer.h"
+
+#include <linux/gpio.h>
+#include <media/s5p_hdmi.h>
+
+#define ctx_from_connector(c)	container_of(c, struct hdmi_context, connector)
+
+#define HOTPLUG_DEBOUNCE_MS		1100
+
+/* AVI header and aspect ratio */
+#define HDMI_AVI_VERSION		0x02
+#define HDMI_AVI_LENGTH		0x0D
+
+/* AUI header info */
+#define HDMI_AUI_VERSION	0x01
+#define HDMI_AUI_LENGTH	0x0A
+#define AVI_SAME_AS_PIC_ASPECT_RATIO 0x8
+#define AVI_4_3_CENTER_RATIO	0x9
+#define AVI_16_9_CENTER_RATIO	0xa
+
+enum hdmi_type {
+	HDMI_TYPE13,
+	HDMI_TYPE14,
+};
+
+struct hdmi_driver_data {
+	unsigned int type;
+	const struct hdmiphy_config *phy_confs;
+	unsigned int phy_conf_count;
+	unsigned int is_apb_phy:1;
+};
+
+struct hdmi_resources {
+	struct clk			*hdmi;
+	struct clk			*sclk_hdmi;
+	struct clk			*sclk_pixel;
+	struct clk			*sclk_hdmiphy;
+	struct clk			*mout_hdmi;
+	struct regulator_bulk_data	*regul_bulk;
+	struct regulator		*reg_hdmi_en;
+	int				regul_count;
+};
+
+struct hdmi_tg_regs {
+	u8 cmd[1];
+	u8 h_fsz[2];
+	u8 hact_st[2];
+	u8 hact_sz[2];
+	u8 v_fsz[2];
+	u8 vsync[2];
+	u8 vsync2[2];
+	u8 vact_st[2];
+	u8 vact_sz[2];
+	u8 field_chg[2];
+	u8 vact_st2[2];
+	u8 vact_st3[2];
+	u8 vact_st4[2];
+	u8 vsync_top_hdmi[2];
+	u8 vsync_bot_hdmi[2];
+	u8 field_top_hdmi[2];
+	u8 field_bot_hdmi[2];
+	u8 tg_3d[1];
+};
+
+struct hdmi_v13_core_regs {
+	u8 h_blank[2];
+	u8 v_blank[3];
+	u8 h_v_line[3];
+	u8 vsync_pol[1];
+	u8 int_pro_mode[1];
+	u8 v_blank_f[3];
+	u8 h_sync_gen[3];
+	u8 v_sync_gen1[3];
+	u8 v_sync_gen2[3];
+	u8 v_sync_gen3[3];
+};
+
+struct hdmi_v14_core_regs {
+	u8 h_blank[2];
+	u8 v2_blank[2];
+	u8 v1_blank[2];
+	u8 v_line[2];
+	u8 h_line[2];
+	u8 hsync_pol[1];
+	u8 vsync_pol[1];
+	u8 int_pro_mode[1];
+	u8 v_blank_f0[2];
+	u8 v_blank_f1[2];
+	u8 h_sync_start[2];
+	u8 h_sync_end[2];
+	u8 v_sync_line_bef_2[2];
+	u8 v_sync_line_bef_1[2];
+	u8 v_sync_line_aft_2[2];
+	u8 v_sync_line_aft_1[2];
+	u8 v_sync_line_aft_pxl_2[2];
+	u8 v_sync_line_aft_pxl_1[2];
+	u8 v_blank_f2[2]; /* for 3D mode */
+	u8 v_blank_f3[2]; /* for 3D mode */
+	u8 v_blank_f4[2]; /* for 3D mode */
+	u8 v_blank_f5[2]; /* for 3D mode */
+	u8 v_sync_line_aft_3[2];
+	u8 v_sync_line_aft_4[2];
+	u8 v_sync_line_aft_5[2];
+	u8 v_sync_line_aft_6[2];
+	u8 v_sync_line_aft_pxl_3[2];
+	u8 v_sync_line_aft_pxl_4[2];
+	u8 v_sync_line_aft_pxl_5[2];
+	u8 v_sync_line_aft_pxl_6[2];
+	u8 vact_space_1[2];
+	u8 vact_space_2[2];
+	u8 vact_space_3[2];
+	u8 vact_space_4[2];
+	u8 vact_space_5[2];
+	u8 vact_space_6[2];
+};
+
+struct hdmi_v13_conf {
+	struct hdmi_v13_core_regs core;
+	struct hdmi_tg_regs tg;
+};
+
+struct hdmi_v14_conf {
+	struct hdmi_v14_core_regs core;
+	struct hdmi_tg_regs tg;
+};
+
+struct hdmi_conf_regs {
+	int pixel_clock;
+	int cea_video_id;
+	enum hdmi_picture_aspect aspect_ratio;
+	union {
+		struct hdmi_v13_conf v13_conf;
+		struct hdmi_v14_conf v14_conf;
+	} conf;
+};
+
+struct hdmi_context {
+	struct exynos_drm_display	display;
+	struct device			*dev;
+	struct drm_device		*drm_dev;
+	struct drm_connector		connector;
+	struct drm_encoder		*encoder;
+	bool				hpd;
+	bool				powered;
+	bool				dvi_mode;
+	struct mutex			hdmi_mutex;
+
+	void __iomem			*regs;
+	int				irq;
+	struct delayed_work		hotplug_work;
+
+	struct i2c_adapter		*ddc_adpt;
+	struct i2c_client		*hdmiphy_port;
+
+	/* current hdmiphy conf regs */
+	struct drm_display_mode		current_mode;
+	struct hdmi_conf_regs		mode_conf;
+
+	struct hdmi_resources		res;
+
+	int				hpd_gpio;
+	void __iomem			*regs_hdmiphy;
+	const struct hdmiphy_config		*phy_confs;
+	unsigned int			phy_conf_count;
+
+	struct regmap			*pmureg;
+	enum hdmi_type			type;
+};
+
+static inline struct hdmi_context *display_to_hdmi(struct exynos_drm_display *d)
+{
+	return container_of(d, struct hdmi_context, display);
+}
+
+struct hdmiphy_config {
+	int pixel_clock;
+	u8 conf[32];
+};
+
+/* list of phy config settings */
+static const struct hdmiphy_config hdmiphy_v13_configs[] = {
+	{
+		.pixel_clock = 27000000,
+		.conf = {
+			0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+			0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+			0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+			0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 27027000,
+		.conf = {
+			0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
+			0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+			0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+			0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 74176000,
+		.conf = {
+			0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
+			0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
+			0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+			0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 74250000,
+		.conf = {
+			0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
+			0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
+			0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xe0,
+			0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 148500000,
+		.conf = {
+			0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
+			0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
+			0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+			0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00,
+		},
+	},
+};
+
+static const struct hdmiphy_config hdmiphy_v14_configs[] = {
+	{
+		.pixel_clock = 25200000,
+		.conf = {
+			0x01, 0x51, 0x2A, 0x75, 0x40, 0x01, 0x00, 0x08,
+			0x82, 0x80, 0xfc, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xf4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 27000000,
+		.conf = {
+			0x01, 0xd1, 0x22, 0x51, 0x40, 0x08, 0xfc, 0x20,
+			0x98, 0xa0, 0xcb, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+			0x06, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xe4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 27027000,
+		.conf = {
+			0x01, 0xd1, 0x2d, 0x72, 0x40, 0x64, 0x12, 0x08,
+			0x43, 0xa0, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xe3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 36000000,
+		.conf = {
+			0x01, 0x51, 0x2d, 0x55, 0x40, 0x01, 0x00, 0x08,
+			0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xab, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 40000000,
+		.conf = {
+			0x01, 0x51, 0x32, 0x55, 0x40, 0x01, 0x00, 0x08,
+			0x82, 0x80, 0x2c, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x9a, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 65000000,
+		.conf = {
+			0x01, 0xd1, 0x36, 0x34, 0x40, 0x1e, 0x0a, 0x08,
+			0x82, 0xa0, 0x45, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xbd, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 71000000,
+		.conf = {
+			0x01, 0xd1, 0x3b, 0x35, 0x40, 0x0c, 0x04, 0x08,
+			0x85, 0xa0, 0x63, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xad, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 73250000,
+		.conf = {
+			0x01, 0xd1, 0x3d, 0x35, 0x40, 0x18, 0x02, 0x08,
+			0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xa8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 74176000,
+		.conf = {
+			0x01, 0xd1, 0x3e, 0x35, 0x40, 0x5b, 0xde, 0x08,
+			0x82, 0xa0, 0x73, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x56, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xa6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 74250000,
+		.conf = {
+			0x01, 0xd1, 0x1f, 0x10, 0x40, 0x40, 0xf8, 0x08,
+			0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+			0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xa5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00,
+		},
+	},
+	{
+		.pixel_clock = 83500000,
+		.conf = {
+			0x01, 0xd1, 0x23, 0x11, 0x40, 0x0c, 0xfb, 0x08,
+			0x85, 0xa0, 0xd1, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x93, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 106500000,
+		.conf = {
+			0x01, 0xd1, 0x2c, 0x12, 0x40, 0x0c, 0x09, 0x08,
+			0x84, 0xa0, 0x0a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 108000000,
+		.conf = {
+			0x01, 0x51, 0x2d, 0x15, 0x40, 0x01, 0x00, 0x08,
+			0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xc7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 115500000,
+		.conf = {
+			0x01, 0xd1, 0x30, 0x12, 0x40, 0x40, 0x10, 0x08,
+			0x80, 0x80, 0x21, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0xaa, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 119000000,
+		.conf = {
+			0x01, 0xd1, 0x32, 0x1a, 0x40, 0x30, 0xd8, 0x08,
+			0x04, 0xa0, 0x2a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x9d, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 146250000,
+		.conf = {
+			0x01, 0xd1, 0x3d, 0x15, 0x40, 0x18, 0xfd, 0x08,
+			0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
+			0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x50, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 148500000,
+		.conf = {
+			0x01, 0xd1, 0x1f, 0x00, 0x40, 0x40, 0xf8, 0x08,
+			0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+			0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+			0x54, 0x4b, 0x25, 0x03, 0x00, 0x00, 0x01, 0x00,
+		},
+	},
+};
+
+static const struct hdmiphy_config hdmiphy_5420_configs[] = {
+	{
+		.pixel_clock = 25200000,
+		.conf = {
+			0x01, 0x52, 0x3F, 0x55, 0x40, 0x01, 0x00, 0xC8,
+			0x82, 0xC8, 0xBD, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x06, 0x80, 0x01, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xF4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 27000000,
+		.conf = {
+			0x01, 0xD1, 0x22, 0x51, 0x40, 0x08, 0xFC, 0xE0,
+			0x98, 0xE8, 0xCB, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x06, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xE4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 27027000,
+		.conf = {
+			0x01, 0xD1, 0x2D, 0x72, 0x40, 0x64, 0x12, 0xC8,
+			0x43, 0xE8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x26, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xE3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 36000000,
+		.conf = {
+			0x01, 0x51, 0x2D, 0x55, 0x40, 0x40, 0x00, 0xC8,
+			0x02, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xAB, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 40000000,
+		.conf = {
+			0x01, 0xD1, 0x21, 0x31, 0x40, 0x3C, 0x28, 0xC8,
+			0x87, 0xE8, 0xC8, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x9A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 65000000,
+		.conf = {
+			0x01, 0xD1, 0x36, 0x34, 0x40, 0x0C, 0x04, 0xC8,
+			0x82, 0xE8, 0x45, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xBD, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 71000000,
+		.conf = {
+			0x01, 0xD1, 0x3B, 0x35, 0x40, 0x0C, 0x04, 0xC8,
+			0x85, 0xE8, 0x63, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x57, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 73250000,
+		.conf = {
+			0x01, 0xD1, 0x1F, 0x10, 0x40, 0x78, 0x8D, 0xC8,
+			0x81, 0xE8, 0xB7, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xA8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 74176000,
+		.conf = {
+			0x01, 0xD1, 0x1F, 0x10, 0x40, 0x5B, 0xEF, 0xC8,
+			0x81, 0xE8, 0xB9, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xA6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 74250000,
+		.conf = {
+			0x01, 0xD1, 0x1F, 0x10, 0x40, 0x40, 0xF8, 0x08,
+			0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
+			0x54, 0xA5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 83500000,
+		.conf = {
+			0x01, 0xD1, 0x23, 0x11, 0x40, 0x0C, 0xFB, 0xC8,
+			0x85, 0xE8, 0xD1, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x4A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 88750000,
+		.conf = {
+			0x01, 0xD1, 0x25, 0x11, 0x40, 0x18, 0xFF, 0xC8,
+			0x83, 0xE8, 0xDE, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x45, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 106500000,
+		.conf = {
+			0x01, 0xD1, 0x2C, 0x12, 0x40, 0x0C, 0x09, 0xC8,
+			0x84, 0xE8, 0x0A, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 108000000,
+		.conf = {
+			0x01, 0x51, 0x2D, 0x15, 0x40, 0x01, 0x00, 0xC8,
+			0x82, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0xC7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 115500000,
+		.conf = {
+			0x01, 0xD1, 0x30, 0x14, 0x40, 0x0C, 0x03, 0xC8,
+			0x88, 0xE8, 0x21, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x6A, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 146250000,
+		.conf = {
+			0x01, 0xD1, 0x3D, 0x15, 0x40, 0x18, 0xFD, 0xC8,
+			0x83, 0xE8, 0x6E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
+			0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
+			0x54, 0x54, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
+		},
+	},
+	{
+		.pixel_clock = 148500000,
+		.conf = {
+			0x01, 0xD1, 0x1F, 0x00, 0x40, 0x40, 0xF8, 0x08,
+			0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
+			0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
+			0x54, 0x4B, 0x25, 0x03, 0x00, 0x80, 0x01, 0x80,
+		},
+	},
+};
+
+static struct hdmi_driver_data exynos5420_hdmi_driver_data = {
+	.type		= HDMI_TYPE14,
+	.phy_confs	= hdmiphy_5420_configs,
+	.phy_conf_count	= ARRAY_SIZE(hdmiphy_5420_configs),
+	.is_apb_phy	= 1,
+};
+
+static struct hdmi_driver_data exynos4212_hdmi_driver_data = {
+	.type		= HDMI_TYPE14,
+	.phy_confs	= hdmiphy_v14_configs,
+	.phy_conf_count	= ARRAY_SIZE(hdmiphy_v14_configs),
+	.is_apb_phy	= 0,
+};
+
+static struct hdmi_driver_data exynos4210_hdmi_driver_data = {
+	.type		= HDMI_TYPE13,
+	.phy_confs	= hdmiphy_v13_configs,
+	.phy_conf_count	= ARRAY_SIZE(hdmiphy_v13_configs),
+	.is_apb_phy	= 0,
+};
+
+static struct hdmi_driver_data exynos5_hdmi_driver_data = {
+	.type		= HDMI_TYPE14,
+	.phy_confs	= hdmiphy_v13_configs,
+	.phy_conf_count	= ARRAY_SIZE(hdmiphy_v13_configs),
+	.is_apb_phy	= 0,
+};
+
+static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
+{
+	return readl(hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writeb(struct hdmi_context *hdata,
+				 u32 reg_id, u8 value)
+{
+	writeb(value, hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
+				 u32 reg_id, u32 value, u32 mask)
+{
+	u32 old = readl(hdata->regs + reg_id);
+	value = (value & mask) | (old & ~mask);
+	writel(value, hdata->regs + reg_id);
+}
+
+static int hdmiphy_reg_writeb(struct hdmi_context *hdata,
+			u32 reg_offset, u8 value)
+{
+	if (hdata->hdmiphy_port) {
+		u8 buffer[2];
+		int ret;
+
+		buffer[0] = reg_offset;
+		buffer[1] = value;
+
+		ret = i2c_master_send(hdata->hdmiphy_port, buffer, 2);
+		if (ret == 2)
+			return 0;
+		return ret;
+	} else {
+		writeb(value, hdata->regs_hdmiphy + (reg_offset<<2));
+		return 0;
+	}
+}
+
+static int hdmiphy_reg_write_buf(struct hdmi_context *hdata,
+			u32 reg_offset, const u8 *buf, u32 len)
+{
+	if ((reg_offset + len) > 32)
+		return -EINVAL;
+
+	if (hdata->hdmiphy_port) {
+		int ret;
+
+		ret = i2c_master_send(hdata->hdmiphy_port, buf, len);
+		if (ret == len)
+			return 0;
+		return ret;
+	} else {
+		int i;
+		for (i = 0; i < len; i++)
+			writeb(buf[i], hdata->regs_hdmiphy +
+				((reg_offset + i)<<2));
+		return 0;
+	}
+}
+
+static void hdmi_v13_regs_dump(struct hdmi_context *hdata, char *prefix)
+{
+#define DUMPREG(reg_id) \
+	DRM_DEBUG_KMS("%s:" #reg_id " = %08x\n", prefix, \
+	readl(hdata->regs + reg_id))
+	DRM_DEBUG_KMS("%s: ---- CONTROL REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_INTC_FLAG);
+	DUMPREG(HDMI_INTC_CON);
+	DUMPREG(HDMI_HPD_STATUS);
+	DUMPREG(HDMI_V13_PHY_RSTOUT);
+	DUMPREG(HDMI_V13_PHY_VPLL);
+	DUMPREG(HDMI_V13_PHY_CMU);
+	DUMPREG(HDMI_V13_CORE_RSTOUT);
+
+	DRM_DEBUG_KMS("%s: ---- CORE REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_CON_0);
+	DUMPREG(HDMI_CON_1);
+	DUMPREG(HDMI_CON_2);
+	DUMPREG(HDMI_SYS_STATUS);
+	DUMPREG(HDMI_V13_PHY_STATUS);
+	DUMPREG(HDMI_STATUS_EN);
+	DUMPREG(HDMI_HPD);
+	DUMPREG(HDMI_MODE_SEL);
+	DUMPREG(HDMI_V13_HPD_GEN);
+	DUMPREG(HDMI_V13_DC_CONTROL);
+	DUMPREG(HDMI_V13_VIDEO_PATTERN_GEN);
+
+	DRM_DEBUG_KMS("%s: ---- CORE SYNC REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_H_BLANK_0);
+	DUMPREG(HDMI_H_BLANK_1);
+	DUMPREG(HDMI_V13_V_BLANK_0);
+	DUMPREG(HDMI_V13_V_BLANK_1);
+	DUMPREG(HDMI_V13_V_BLANK_2);
+	DUMPREG(HDMI_V13_H_V_LINE_0);
+	DUMPREG(HDMI_V13_H_V_LINE_1);
+	DUMPREG(HDMI_V13_H_V_LINE_2);
+	DUMPREG(HDMI_VSYNC_POL);
+	DUMPREG(HDMI_INT_PRO_MODE);
+	DUMPREG(HDMI_V13_V_BLANK_F_0);
+	DUMPREG(HDMI_V13_V_BLANK_F_1);
+	DUMPREG(HDMI_V13_V_BLANK_F_2);
+	DUMPREG(HDMI_V13_H_SYNC_GEN_0);
+	DUMPREG(HDMI_V13_H_SYNC_GEN_1);
+	DUMPREG(HDMI_V13_H_SYNC_GEN_2);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_1_0);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_1_1);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_1_2);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_2_0);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_2_1);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_2_2);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_3_0);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_3_1);
+	DUMPREG(HDMI_V13_V_SYNC_GEN_3_2);
+
+	DRM_DEBUG_KMS("%s: ---- TG REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_TG_CMD);
+	DUMPREG(HDMI_TG_H_FSZ_L);
+	DUMPREG(HDMI_TG_H_FSZ_H);
+	DUMPREG(HDMI_TG_HACT_ST_L);
+	DUMPREG(HDMI_TG_HACT_ST_H);
+	DUMPREG(HDMI_TG_HACT_SZ_L);
+	DUMPREG(HDMI_TG_HACT_SZ_H);
+	DUMPREG(HDMI_TG_V_FSZ_L);
+	DUMPREG(HDMI_TG_V_FSZ_H);
+	DUMPREG(HDMI_TG_VSYNC_L);
+	DUMPREG(HDMI_TG_VSYNC_H);
+	DUMPREG(HDMI_TG_VSYNC2_L);
+	DUMPREG(HDMI_TG_VSYNC2_H);
+	DUMPREG(HDMI_TG_VACT_ST_L);
+	DUMPREG(HDMI_TG_VACT_ST_H);
+	DUMPREG(HDMI_TG_VACT_SZ_L);
+	DUMPREG(HDMI_TG_VACT_SZ_H);
+	DUMPREG(HDMI_TG_FIELD_CHG_L);
+	DUMPREG(HDMI_TG_FIELD_CHG_H);
+	DUMPREG(HDMI_TG_VACT_ST2_L);
+	DUMPREG(HDMI_TG_VACT_ST2_H);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H);
+#undef DUMPREG
+}
+
+static void hdmi_v14_regs_dump(struct hdmi_context *hdata, char *prefix)
+{
+	int i;
+
+#define DUMPREG(reg_id) \
+	DRM_DEBUG_KMS("%s:" #reg_id " = %08x\n", prefix, \
+	readl(hdata->regs + reg_id))
+
+	DRM_DEBUG_KMS("%s: ---- CONTROL REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_INTC_CON);
+	DUMPREG(HDMI_INTC_FLAG);
+	DUMPREG(HDMI_HPD_STATUS);
+	DUMPREG(HDMI_INTC_CON_1);
+	DUMPREG(HDMI_INTC_FLAG_1);
+	DUMPREG(HDMI_PHY_STATUS_0);
+	DUMPREG(HDMI_PHY_STATUS_PLL);
+	DUMPREG(HDMI_PHY_CON_0);
+	DUMPREG(HDMI_PHY_RSTOUT);
+	DUMPREG(HDMI_PHY_VPLL);
+	DUMPREG(HDMI_PHY_CMU);
+	DUMPREG(HDMI_CORE_RSTOUT);
+
+	DRM_DEBUG_KMS("%s: ---- CORE REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_CON_0);
+	DUMPREG(HDMI_CON_1);
+	DUMPREG(HDMI_CON_2);
+	DUMPREG(HDMI_SYS_STATUS);
+	DUMPREG(HDMI_PHY_STATUS_0);
+	DUMPREG(HDMI_STATUS_EN);
+	DUMPREG(HDMI_HPD);
+	DUMPREG(HDMI_MODE_SEL);
+	DUMPREG(HDMI_ENC_EN);
+	DUMPREG(HDMI_DC_CONTROL);
+	DUMPREG(HDMI_VIDEO_PATTERN_GEN);
+
+	DRM_DEBUG_KMS("%s: ---- CORE SYNC REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_H_BLANK_0);
+	DUMPREG(HDMI_H_BLANK_1);
+	DUMPREG(HDMI_V2_BLANK_0);
+	DUMPREG(HDMI_V2_BLANK_1);
+	DUMPREG(HDMI_V1_BLANK_0);
+	DUMPREG(HDMI_V1_BLANK_1);
+	DUMPREG(HDMI_V_LINE_0);
+	DUMPREG(HDMI_V_LINE_1);
+	DUMPREG(HDMI_H_LINE_0);
+	DUMPREG(HDMI_H_LINE_1);
+	DUMPREG(HDMI_HSYNC_POL);
+
+	DUMPREG(HDMI_VSYNC_POL);
+	DUMPREG(HDMI_INT_PRO_MODE);
+	DUMPREG(HDMI_V_BLANK_F0_0);
+	DUMPREG(HDMI_V_BLANK_F0_1);
+	DUMPREG(HDMI_V_BLANK_F1_0);
+	DUMPREG(HDMI_V_BLANK_F1_1);
+
+	DUMPREG(HDMI_H_SYNC_START_0);
+	DUMPREG(HDMI_H_SYNC_START_1);
+	DUMPREG(HDMI_H_SYNC_END_0);
+	DUMPREG(HDMI_H_SYNC_END_1);
+
+	DUMPREG(HDMI_V_SYNC_LINE_BEF_2_0);
+	DUMPREG(HDMI_V_SYNC_LINE_BEF_2_1);
+	DUMPREG(HDMI_V_SYNC_LINE_BEF_1_0);
+	DUMPREG(HDMI_V_SYNC_LINE_BEF_1_1);
+
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_2_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_2_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_1_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_1_1);
+
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_2_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_2_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_1_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_1_1);
+
+	DUMPREG(HDMI_V_BLANK_F2_0);
+	DUMPREG(HDMI_V_BLANK_F2_1);
+	DUMPREG(HDMI_V_BLANK_F3_0);
+	DUMPREG(HDMI_V_BLANK_F3_1);
+	DUMPREG(HDMI_V_BLANK_F4_0);
+	DUMPREG(HDMI_V_BLANK_F4_1);
+	DUMPREG(HDMI_V_BLANK_F5_0);
+	DUMPREG(HDMI_V_BLANK_F5_1);
+
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_3_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_3_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_4_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_4_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_5_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_5_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_6_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_6_1);
+
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_3_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_3_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_4_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_4_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_5_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_5_1);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_6_0);
+	DUMPREG(HDMI_V_SYNC_LINE_AFT_PXL_6_1);
+
+	DUMPREG(HDMI_VACT_SPACE_1_0);
+	DUMPREG(HDMI_VACT_SPACE_1_1);
+	DUMPREG(HDMI_VACT_SPACE_2_0);
+	DUMPREG(HDMI_VACT_SPACE_2_1);
+	DUMPREG(HDMI_VACT_SPACE_3_0);
+	DUMPREG(HDMI_VACT_SPACE_3_1);
+	DUMPREG(HDMI_VACT_SPACE_4_0);
+	DUMPREG(HDMI_VACT_SPACE_4_1);
+	DUMPREG(HDMI_VACT_SPACE_5_0);
+	DUMPREG(HDMI_VACT_SPACE_5_1);
+	DUMPREG(HDMI_VACT_SPACE_6_0);
+	DUMPREG(HDMI_VACT_SPACE_6_1);
+
+	DRM_DEBUG_KMS("%s: ---- TG REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_TG_CMD);
+	DUMPREG(HDMI_TG_H_FSZ_L);
+	DUMPREG(HDMI_TG_H_FSZ_H);
+	DUMPREG(HDMI_TG_HACT_ST_L);
+	DUMPREG(HDMI_TG_HACT_ST_H);
+	DUMPREG(HDMI_TG_HACT_SZ_L);
+	DUMPREG(HDMI_TG_HACT_SZ_H);
+	DUMPREG(HDMI_TG_V_FSZ_L);
+	DUMPREG(HDMI_TG_V_FSZ_H);
+	DUMPREG(HDMI_TG_VSYNC_L);
+	DUMPREG(HDMI_TG_VSYNC_H);
+	DUMPREG(HDMI_TG_VSYNC2_L);
+	DUMPREG(HDMI_TG_VSYNC2_H);
+	DUMPREG(HDMI_TG_VACT_ST_L);
+	DUMPREG(HDMI_TG_VACT_ST_H);
+	DUMPREG(HDMI_TG_VACT_SZ_L);
+	DUMPREG(HDMI_TG_VACT_SZ_H);
+	DUMPREG(HDMI_TG_FIELD_CHG_L);
+	DUMPREG(HDMI_TG_FIELD_CHG_H);
+	DUMPREG(HDMI_TG_VACT_ST2_L);
+	DUMPREG(HDMI_TG_VACT_ST2_H);
+	DUMPREG(HDMI_TG_VACT_ST3_L);
+	DUMPREG(HDMI_TG_VACT_ST3_H);
+	DUMPREG(HDMI_TG_VACT_ST4_L);
+	DUMPREG(HDMI_TG_VACT_ST4_H);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H);
+	DUMPREG(HDMI_TG_3D);
+
+	DRM_DEBUG_KMS("%s: ---- PACKET REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_AVI_CON);
+	DUMPREG(HDMI_AVI_HEADER0);
+	DUMPREG(HDMI_AVI_HEADER1);
+	DUMPREG(HDMI_AVI_HEADER2);
+	DUMPREG(HDMI_AVI_CHECK_SUM);
+	DUMPREG(HDMI_VSI_CON);
+	DUMPREG(HDMI_VSI_HEADER0);
+	DUMPREG(HDMI_VSI_HEADER1);
+	DUMPREG(HDMI_VSI_HEADER2);
+	for (i = 0; i < 7; ++i)
+		DUMPREG(HDMI_VSI_DATA(i));
+
+#undef DUMPREG
+}
+
+static void hdmi_regs_dump(struct hdmi_context *hdata, char *prefix)
+{
+	if (hdata->type == HDMI_TYPE13)
+		hdmi_v13_regs_dump(hdata, prefix);
+	else
+		hdmi_v14_regs_dump(hdata, prefix);
+}
+
+static u8 hdmi_chksum(struct hdmi_context *hdata,
+			u32 start, u8 len, u32 hdr_sum)
+{
+	int i;
+
+	/* hdr_sum : header0 + header1 + header2
+	* start : start address of packet byte1
+	* len : packet bytes - 1 */
+	for (i = 0; i < len; ++i)
+		hdr_sum += 0xff & hdmi_reg_read(hdata, start + i * 4);
+
+	/* return 2's complement of 8 bit hdr_sum */
+	return (u8)(~(hdr_sum & 0xff) + 1);
+}
+
+static void hdmi_reg_infoframe(struct hdmi_context *hdata,
+			union hdmi_infoframe *infoframe)
+{
+	u32 hdr_sum;
+	u8 chksum;
+	u32 mod;
+	u32 vic;
+
+	mod = hdmi_reg_read(hdata, HDMI_MODE_SEL);
+	if (hdata->dvi_mode) {
+		hdmi_reg_writeb(hdata, HDMI_VSI_CON,
+				HDMI_VSI_CON_DO_NOT_TRANSMIT);
+		hdmi_reg_writeb(hdata, HDMI_AVI_CON,
+				HDMI_AVI_CON_DO_NOT_TRANSMIT);
+		hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN);
+		return;
+	}
+
+	switch (infoframe->any.type) {
+	case HDMI_INFOFRAME_TYPE_AVI:
+		hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
+		hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->any.type);
+		hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1,
+				infoframe->any.version);
+		hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->any.length);
+		hdr_sum = infoframe->any.type + infoframe->any.version +
+			  infoframe->any.length;
+
+		/* Output format zero hardcoded ,RGB YBCR selection */
+		hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 |
+			AVI_ACTIVE_FORMAT_VALID |
+			AVI_UNDERSCANNED_DISPLAY_VALID);
+
+		/*
+		 * Set the aspect ratio as per the mode, mentioned in
+		 * Table 9 AVI InfoFrame Data Byte 2 of CEA-861-D Standard
+		 */
+		switch (hdata->mode_conf.aspect_ratio) {
+		case HDMI_PICTURE_ASPECT_4_3:
+			hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2),
+					hdata->mode_conf.aspect_ratio |
+					AVI_4_3_CENTER_RATIO);
+			break;
+		case HDMI_PICTURE_ASPECT_16_9:
+			hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2),
+					hdata->mode_conf.aspect_ratio |
+					AVI_16_9_CENTER_RATIO);
+			break;
+		case HDMI_PICTURE_ASPECT_NONE:
+		default:
+			hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2),
+					hdata->mode_conf.aspect_ratio |
+					AVI_SAME_AS_PIC_ASPECT_RATIO);
+			break;
+		}
+
+		vic = hdata->mode_conf.cea_video_id;
+		hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), vic);
+
+		chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1),
+					infoframe->any.length, hdr_sum);
+		DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum);
+		hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum);
+		break;
+	case HDMI_INFOFRAME_TYPE_AUDIO:
+		hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
+		hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->any.type);
+		hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1,
+				infoframe->any.version);
+		hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->any.length);
+		hdr_sum = infoframe->any.type + infoframe->any.version +
+			  infoframe->any.length;
+		chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1),
+					infoframe->any.length, hdr_sum);
+		DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum);
+		hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum);
+		break;
+	default:
+		break;
+	}
+}
+
+static enum drm_connector_status hdmi_detect(struct drm_connector *connector,
+				bool force)
+{
+	struct hdmi_context *hdata = ctx_from_connector(connector);
+
+	hdata->hpd = gpio_get_value(hdata->hpd_gpio);
+
+	return hdata->hpd ? connector_status_connected :
+			connector_status_disconnected;
+}
+
+static void hdmi_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs hdmi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = hdmi_detect,
+	.destroy = hdmi_connector_destroy,
+};
+
+static int hdmi_get_modes(struct drm_connector *connector)
+{
+	struct hdmi_context *hdata = ctx_from_connector(connector);
+	struct edid *edid;
+
+	if (!hdata->ddc_adpt)
+		return -ENODEV;
+
+	edid = drm_get_edid(connector, hdata->ddc_adpt);
+	if (!edid)
+		return -ENODEV;
+
+	hdata->dvi_mode = !drm_detect_hdmi_monitor(edid);
+	DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n",
+		(hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
+		edid->width_cm, edid->height_cm);
+
+	drm_mode_connector_update_edid_property(connector, edid);
+
+	return drm_add_edid_modes(connector, edid);
+}
+
+static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
+{
+	int i;
+
+	for (i = 0; i < hdata->phy_conf_count; i++)
+		if (hdata->phy_confs[i].pixel_clock == pixel_clock)
+			return i;
+
+	DRM_DEBUG_KMS("Could not find phy config for %d\n", pixel_clock);
+	return -EINVAL;
+}
+
+static int hdmi_mode_valid(struct drm_connector *connector,
+			struct drm_display_mode *mode)
+{
+	struct hdmi_context *hdata = ctx_from_connector(connector);
+	int ret;
+
+	DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
+		mode->hdisplay, mode->vdisplay, mode->vrefresh,
+		(mode->flags & DRM_MODE_FLAG_INTERLACE) ? true :
+		false, mode->clock * 1000);
+
+	ret = mixer_check_mode(mode);
+	if (ret)
+		return MODE_BAD;
+
+	ret = hdmi_find_phy_conf(hdata, mode->clock * 1000);
+	if (ret < 0)
+		return MODE_BAD;
+
+	return MODE_OK;
+}
+
+static struct drm_encoder *hdmi_best_encoder(struct drm_connector *connector)
+{
+	struct hdmi_context *hdata = ctx_from_connector(connector);
+
+	return hdata->encoder;
+}
+
+static struct drm_connector_helper_funcs hdmi_connector_helper_funcs = {
+	.get_modes = hdmi_get_modes,
+	.mode_valid = hdmi_mode_valid,
+	.best_encoder = hdmi_best_encoder,
+};
+
+static int hdmi_create_connector(struct exynos_drm_display *display,
+			struct drm_encoder *encoder)
+{
+	struct hdmi_context *hdata = display_to_hdmi(display);
+	struct drm_connector *connector = &hdata->connector;
+	int ret;
+
+	hdata->encoder = encoder;
+	connector->interlace_allowed = true;
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	ret = drm_connector_init(hdata->drm_dev, connector,
+			&hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
+	drm_connector_register(connector);
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	return 0;
+}
+
+static void hdmi_mode_fixup(struct exynos_drm_display *display,
+				struct drm_connector *connector,
+				const struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode)
+{
+	struct drm_display_mode *m;
+	int mode_ok;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	drm_mode_set_crtcinfo(adjusted_mode, 0);
+
+	mode_ok = hdmi_mode_valid(connector, adjusted_mode);
+
+	/* just return if user desired mode exists. */
+	if (mode_ok == MODE_OK)
+		return;
+
+	/*
+	 * otherwise, find the most suitable mode among modes and change it
+	 * to adjusted_mode.
+	 */
+	list_for_each_entry(m, &connector->modes, head) {
+		mode_ok = hdmi_mode_valid(connector, m);
+
+		if (mode_ok == MODE_OK) {
+			DRM_INFO("desired mode doesn't exist so\n");
+			DRM_INFO("use the most suitable mode among modes.\n");
+
+			DRM_DEBUG_KMS("Adjusted Mode: [%d]x[%d] [%d]Hz\n",
+				m->hdisplay, m->vdisplay, m->vrefresh);
+
+			drm_mode_copy(adjusted_mode, m);
+			break;
+		}
+	}
+}
+
+static void hdmi_set_acr(u32 freq, u8 *acr)
+{
+	u32 n, cts;
+
+	switch (freq) {
+	case 32000:
+		n = 4096;
+		cts = 27000;
+		break;
+	case 44100:
+		n = 6272;
+		cts = 30000;
+		break;
+	case 88200:
+		n = 12544;
+		cts = 30000;
+		break;
+	case 176400:
+		n = 25088;
+		cts = 30000;
+		break;
+	case 48000:
+		n = 6144;
+		cts = 27000;
+		break;
+	case 96000:
+		n = 12288;
+		cts = 27000;
+		break;
+	case 192000:
+		n = 24576;
+		cts = 27000;
+		break;
+	default:
+		n = 0;
+		cts = 0;
+		break;
+	}
+
+	acr[1] = cts >> 16;
+	acr[2] = cts >> 8 & 0xff;
+	acr[3] = cts & 0xff;
+
+	acr[4] = n >> 16;
+	acr[5] = n >> 8 & 0xff;
+	acr[6] = n & 0xff;
+}
+
+static void hdmi_reg_acr(struct hdmi_context *hdata, u8 *acr)
+{
+	hdmi_reg_writeb(hdata, HDMI_ACR_N0, acr[6]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_N1, acr[5]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_N2, acr[4]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_MCTS0, acr[3]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_MCTS1, acr[2]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_MCTS2, acr[1]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_CTS0, acr[3]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_CTS1, acr[2]);
+	hdmi_reg_writeb(hdata, HDMI_ACR_CTS2, acr[1]);
+
+	if (hdata->type == HDMI_TYPE13)
+		hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 4);
+	else
+		hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4);
+}
+
+static void hdmi_audio_init(struct hdmi_context *hdata)
+{
+	u32 sample_rate, bits_per_sample;
+	u32 data_num, bit_ch, sample_frq;
+	u32 val;
+	u8 acr[7];
+
+	sample_rate = 44100;
+	bits_per_sample = 16;
+
+	switch (bits_per_sample) {
+	case 20:
+		data_num = 2;
+		bit_ch  = 1;
+		break;
+	case 24:
+		data_num = 3;
+		bit_ch  = 1;
+		break;
+	default:
+		data_num = 1;
+		bit_ch  = 0;
+		break;
+	}
+
+	hdmi_set_acr(sample_rate, acr);
+	hdmi_reg_acr(hdata, acr);
+
+	hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CON, HDMI_I2S_IN_DISABLE
+				| HDMI_I2S_AUD_I2S | HDMI_I2S_CUV_I2S_ENABLE
+				| HDMI_I2S_MUX_ENABLE);
+
+	hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CH, HDMI_I2S_CH0_EN
+			| HDMI_I2S_CH1_EN | HDMI_I2S_CH2_EN);
+
+	hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CUV, HDMI_I2S_CUV_RL_EN);
+
+	sample_frq = (sample_rate == 44100) ? 0 :
+			(sample_rate == 48000) ? 2 :
+			(sample_rate == 32000) ? 3 :
+			(sample_rate == 96000) ? 0xa : 0x0;
+
+	hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_DIS);
+	hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_EN);
+
+	val = hdmi_reg_read(hdata, HDMI_I2S_DSD_CON) | 0x01;
+	hdmi_reg_writeb(hdata, HDMI_I2S_DSD_CON, val);
+
+	/* Configuration I2S input ports. Configure I2S_PIN_SEL_0~4 */
+	hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_0, HDMI_I2S_SEL_SCLK(5)
+			| HDMI_I2S_SEL_LRCK(6));
+	hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_1, HDMI_I2S_SEL_SDATA1(1)
+			| HDMI_I2S_SEL_SDATA2(4));
+	hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_2, HDMI_I2S_SEL_SDATA3(1)
+			| HDMI_I2S_SEL_SDATA2(2));
+	hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_3, HDMI_I2S_SEL_DSD(0));
+
+	/* I2S_CON_1 & 2 */
+	hdmi_reg_writeb(hdata, HDMI_I2S_CON_1, HDMI_I2S_SCLK_FALLING_EDGE
+			| HDMI_I2S_L_CH_LOW_POL);
+	hdmi_reg_writeb(hdata, HDMI_I2S_CON_2, HDMI_I2S_MSB_FIRST_MODE
+			| HDMI_I2S_SET_BIT_CH(bit_ch)
+			| HDMI_I2S_SET_SDATA_BIT(data_num)
+			| HDMI_I2S_BASIC_FORMAT);
+
+	/* Configure register related to CUV information */
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_0, HDMI_I2S_CH_STATUS_MODE_0
+			| HDMI_I2S_2AUD_CH_WITHOUT_PREEMPH
+			| HDMI_I2S_COPYRIGHT
+			| HDMI_I2S_LINEAR_PCM
+			| HDMI_I2S_CONSUMER_FORMAT);
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_1, HDMI_I2S_CD_PLAYER);
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_2, HDMI_I2S_SET_SOURCE_NUM(0));
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_3, HDMI_I2S_CLK_ACCUR_LEVEL_2
+			| HDMI_I2S_SET_SMP_FREQ(sample_frq));
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_4,
+			HDMI_I2S_ORG_SMP_FREQ_44_1
+			| HDMI_I2S_WORD_LEN_MAX24_24BITS
+			| HDMI_I2S_WORD_LEN_MAX_24BITS);
+
+	hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_CON, HDMI_I2S_CH_STATUS_RELOAD);
+}
+
+static void hdmi_audio_control(struct hdmi_context *hdata, bool onoff)
+{
+	if (hdata->dvi_mode)
+		return;
+
+	hdmi_reg_writeb(hdata, HDMI_AUI_CON, onoff ? 2 : 0);
+	hdmi_reg_writemask(hdata, HDMI_CON_0, onoff ?
+			HDMI_ASP_EN : HDMI_ASP_DIS, HDMI_ASP_MASK);
+}
+
+static void hdmi_start(struct hdmi_context *hdata, bool start)
+{
+	u32 val = start ? HDMI_TG_EN : 0;
+
+	if (hdata->current_mode.flags & DRM_MODE_FLAG_INTERLACE)
+		val |= HDMI_FIELD_EN;
+
+	hdmi_reg_writemask(hdata, HDMI_CON_0, val, HDMI_EN);
+	hdmi_reg_writemask(hdata, HDMI_TG_CMD, val, HDMI_TG_EN | HDMI_FIELD_EN);
+}
+
+static void hdmi_conf_init(struct hdmi_context *hdata)
+{
+	union hdmi_infoframe infoframe;
+
+	/* disable HPD interrupts from HDMI IP block, use GPIO instead */
+	hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
+		HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
+
+	/* choose HDMI mode */
+	hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
+		HDMI_MODE_HDMI_EN, HDMI_MODE_MASK);
+	/* Apply Video preable and Guard band in HDMI mode only */
+	hdmi_reg_writeb(hdata, HDMI_CON_2, 0);
+	/* disable bluescreen */
+	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
+
+	if (hdata->dvi_mode) {
+		/* choose DVI mode */
+		hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
+				HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
+		hdmi_reg_writeb(hdata, HDMI_CON_2,
+				HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
+	}
+
+	if (hdata->type == HDMI_TYPE13) {
+		/* choose bluescreen (fecal) color */
+		hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);
+		hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_1, 0x34);
+		hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_2, 0x56);
+
+		/* enable AVI packet every vsync, fixes purple line problem */
+		hdmi_reg_writeb(hdata, HDMI_V13_AVI_CON, 0x02);
+		/* force RGB, look to CEA-861-D, table 7 for more detail */
+		hdmi_reg_writeb(hdata, HDMI_V13_AVI_BYTE(0), 0 << 5);
+		hdmi_reg_writemask(hdata, HDMI_CON_1, 0x10 << 5, 0x11 << 5);
+
+		hdmi_reg_writeb(hdata, HDMI_V13_SPD_CON, 0x02);
+		hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
+		hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
+	} else {
+		infoframe.any.type = HDMI_INFOFRAME_TYPE_AVI;
+		infoframe.any.version = HDMI_AVI_VERSION;
+		infoframe.any.length = HDMI_AVI_LENGTH;
+		hdmi_reg_infoframe(hdata, &infoframe);
+
+		infoframe.any.type = HDMI_INFOFRAME_TYPE_AUDIO;
+		infoframe.any.version = HDMI_AUI_VERSION;
+		infoframe.any.length = HDMI_AUI_LENGTH;
+		hdmi_reg_infoframe(hdata, &infoframe);
+
+		/* enable AVI packet every vsync, fixes purple line problem */
+		hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5);
+	}
+}
+
+static void hdmi_v13_mode_apply(struct hdmi_context *hdata)
+{
+	const struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v13_conf.tg;
+	const struct hdmi_v13_core_regs *core =
+		&hdata->mode_conf.conf.v13_conf.core;
+	int tries;
+
+	/* setting core registers */
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_0, core->h_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_1, core->h_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_0, core->v_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_1, core->v_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_2, core->v_blank[2]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_V_LINE_0, core->h_v_line[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_V_LINE_1, core->h_v_line[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_V_LINE_2, core->h_v_line[2]);
+	hdmi_reg_writeb(hdata, HDMI_VSYNC_POL, core->vsync_pol[0]);
+	hdmi_reg_writeb(hdata, HDMI_INT_PRO_MODE, core->int_pro_mode[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_F_0, core->v_blank_f[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_F_1, core->v_blank_f[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_BLANK_F_2, core->v_blank_f[2]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_SYNC_GEN_0, core->h_sync_gen[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_SYNC_GEN_1, core->h_sync_gen[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_H_SYNC_GEN_2, core->h_sync_gen[2]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_1_0, core->v_sync_gen1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_1_1, core->v_sync_gen1[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_1_2, core->v_sync_gen1[2]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_2_0, core->v_sync_gen2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_2_1, core->v_sync_gen2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_2_2, core->v_sync_gen2[2]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_3_0, core->v_sync_gen3[0]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_3_1, core->v_sync_gen3[1]);
+	hdmi_reg_writeb(hdata, HDMI_V13_V_SYNC_GEN_3_2, core->v_sync_gen3[2]);
+	/* Timing generator registers */
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_L, tg->h_fsz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_H, tg->h_fsz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_L, tg->hact_st[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_H, tg->hact_st[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_L, tg->hact_sz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_H, tg->hact_sz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_L, tg->v_fsz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_H, tg->v_fsz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_L, tg->vsync[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_H, tg->vsync[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_L, tg->vsync2[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_H, tg->vsync2[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_L, tg->vact_st[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_H, tg->vact_st[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_L, tg->vact_sz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_H, tg->vact_sz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_L, tg->field_chg[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_H, tg->field_chg[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_L, tg->vact_st2[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_H, tg->vact_st2[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_L, tg->vsync_top_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_H, tg->vsync_top_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, tg->vsync_bot_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_H, tg->vsync_bot_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_L, tg->field_top_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_H, tg->field_top_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_L, tg->field_bot_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_H, tg->field_bot_hdmi[1]);
+
+	/* waiting for HDMIPHY's PLL to get to steady state */
+	for (tries = 100; tries; --tries) {
+		u32 val = hdmi_reg_read(hdata, HDMI_V13_PHY_STATUS);
+		if (val & HDMI_PHY_STATUS_READY)
+			break;
+		usleep_range(1000, 2000);
+	}
+	/* steady state not achieved */
+	if (tries == 0) {
+		DRM_ERROR("hdmiphy's pll could not reach steady state.\n");
+		hdmi_regs_dump(hdata, "timing apply");
+	}
+
+	clk_disable_unprepare(hdata->res.sclk_hdmi);
+	clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy);
+	clk_prepare_enable(hdata->res.sclk_hdmi);
+
+	/* enable HDMI and timing generator */
+	hdmi_start(hdata, true);
+}
+
+static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
+{
+	const struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v14_conf.tg;
+	const struct hdmi_v14_core_regs *core =
+		&hdata->mode_conf.conf.v14_conf.core;
+	int tries;
+
+	/* setting core registers */
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_0, core->h_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_1, core->h_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V2_BLANK_0, core->v2_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_V2_BLANK_1, core->v2_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V1_BLANK_0, core->v1_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_V1_BLANK_1, core->v1_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_LINE_0, core->v_line[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_LINE_1, core->v_line[1]);
+	hdmi_reg_writeb(hdata, HDMI_H_LINE_0, core->h_line[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_LINE_1, core->h_line[1]);
+	hdmi_reg_writeb(hdata, HDMI_HSYNC_POL, core->hsync_pol[0]);
+	hdmi_reg_writeb(hdata, HDMI_VSYNC_POL, core->vsync_pol[0]);
+	hdmi_reg_writeb(hdata, HDMI_INT_PRO_MODE, core->int_pro_mode[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F0_0, core->v_blank_f0[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F0_1, core->v_blank_f0[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F1_0, core->v_blank_f1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F1_1, core->v_blank_f1[1]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_START_0, core->h_sync_start[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_START_1, core->h_sync_start[1]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_END_0, core->h_sync_end[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_END_1, core->h_sync_end[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_BEF_2_0,
+			core->v_sync_line_bef_2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_BEF_2_1,
+			core->v_sync_line_bef_2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_BEF_1_0,
+			core->v_sync_line_bef_1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_BEF_1_1,
+			core->v_sync_line_bef_1[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_2_0,
+			core->v_sync_line_aft_2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_2_1,
+			core->v_sync_line_aft_2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_1_0,
+			core->v_sync_line_aft_1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_1_1,
+			core->v_sync_line_aft_1[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_0,
+			core->v_sync_line_aft_pxl_2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_1,
+			core->v_sync_line_aft_pxl_2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_0,
+			core->v_sync_line_aft_pxl_1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_1,
+			core->v_sync_line_aft_pxl_1[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F2_0, core->v_blank_f2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F2_1, core->v_blank_f2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F3_0, core->v_blank_f3[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F3_1, core->v_blank_f3[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F4_0, core->v_blank_f4[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F4_1, core->v_blank_f4[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F5_0, core->v_blank_f5[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F5_1, core->v_blank_f5[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_3_0,
+			core->v_sync_line_aft_3[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_3_1,
+			core->v_sync_line_aft_3[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_4_0,
+			core->v_sync_line_aft_4[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_4_1,
+			core->v_sync_line_aft_4[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_5_0,
+			core->v_sync_line_aft_5[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_5_1,
+			core->v_sync_line_aft_5[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_6_0,
+			core->v_sync_line_aft_6[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_6_1,
+			core->v_sync_line_aft_6[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_3_0,
+			core->v_sync_line_aft_pxl_3[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_3_1,
+			core->v_sync_line_aft_pxl_3[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_4_0,
+			core->v_sync_line_aft_pxl_4[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_4_1,
+			core->v_sync_line_aft_pxl_4[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_5_0,
+			core->v_sync_line_aft_pxl_5[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_5_1,
+			core->v_sync_line_aft_pxl_5[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_6_0,
+			core->v_sync_line_aft_pxl_6[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_LINE_AFT_PXL_6_1,
+			core->v_sync_line_aft_pxl_6[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_1_0, core->vact_space_1[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_1_1, core->vact_space_1[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_2_0, core->vact_space_2[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_2_1, core->vact_space_2[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_3_0, core->vact_space_3[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_3_1, core->vact_space_3[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_4_0, core->vact_space_4[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_4_1, core->vact_space_4[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_5_0, core->vact_space_5[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_5_1, core->vact_space_5[1]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_6_0, core->vact_space_6[0]);
+	hdmi_reg_writeb(hdata, HDMI_VACT_SPACE_6_1, core->vact_space_6[1]);
+
+	/* Timing generator registers */
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_L, tg->h_fsz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_H, tg->h_fsz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_L, tg->hact_st[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_H, tg->hact_st[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_L, tg->hact_sz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_H, tg->hact_sz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_L, tg->v_fsz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_H, tg->v_fsz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_L, tg->vsync[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_H, tg->vsync[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_L, tg->vsync2[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_H, tg->vsync2[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_L, tg->vact_st[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_H, tg->vact_st[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_L, tg->vact_sz[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_H, tg->vact_sz[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_L, tg->field_chg[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_H, tg->field_chg[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_L, tg->vact_st2[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_H, tg->vact_st2[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST3_L, tg->vact_st3[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST3_H, tg->vact_st3[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST4_L, tg->vact_st4[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST4_H, tg->vact_st4[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_L, tg->vsync_top_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_H, tg->vsync_top_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, tg->vsync_bot_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_H, tg->vsync_bot_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_L, tg->field_top_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_H, tg->field_top_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_L, tg->field_bot_hdmi[0]);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_H, tg->field_bot_hdmi[1]);
+	hdmi_reg_writeb(hdata, HDMI_TG_3D, tg->tg_3d[0]);
+
+	/* waiting for HDMIPHY's PLL to get to steady state */
+	for (tries = 100; tries; --tries) {
+		u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS_0);
+		if (val & HDMI_PHY_STATUS_READY)
+			break;
+		usleep_range(1000, 2000);
+	}
+	/* steady state not achieved */
+	if (tries == 0) {
+		DRM_ERROR("hdmiphy's pll could not reach steady state.\n");
+		hdmi_regs_dump(hdata, "timing apply");
+	}
+
+	clk_disable_unprepare(hdata->res.sclk_hdmi);
+	clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy);
+	clk_prepare_enable(hdata->res.sclk_hdmi);
+
+	/* enable HDMI and timing generator */
+	hdmi_start(hdata, true);
+}
+
+static void hdmi_mode_apply(struct hdmi_context *hdata)
+{
+	if (hdata->type == HDMI_TYPE13)
+		hdmi_v13_mode_apply(hdata);
+	else
+		hdmi_v14_mode_apply(hdata);
+}
+
+static void hdmiphy_conf_reset(struct hdmi_context *hdata)
+{
+	u32 reg;
+
+	clk_disable_unprepare(hdata->res.sclk_hdmi);
+	clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_pixel);
+	clk_prepare_enable(hdata->res.sclk_hdmi);
+
+	/* operation mode */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_ENABLE_MODE_SET);
+
+	if (hdata->type == HDMI_TYPE13)
+		reg = HDMI_V13_PHY_RSTOUT;
+	else
+		reg = HDMI_PHY_RSTOUT;
+
+	/* reset hdmiphy */
+	hdmi_reg_writemask(hdata, reg, ~0, HDMI_PHY_SW_RSTOUT);
+	usleep_range(10000, 12000);
+	hdmi_reg_writemask(hdata, reg,  0, HDMI_PHY_SW_RSTOUT);
+	usleep_range(10000, 12000);
+}
+
+static void hdmiphy_poweron(struct hdmi_context *hdata)
+{
+	if (hdata->type != HDMI_TYPE14)
+		return;
+
+	DRM_DEBUG_KMS("\n");
+
+	/* For PHY Mode Setting */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_ENABLE_MODE_SET);
+	/* Phy Power On */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_POWER,
+				HDMI_PHY_POWER_ON);
+	/* For PHY Mode Setting */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_DISABLE_MODE_SET);
+	/* PHY SW Reset */
+	hdmiphy_conf_reset(hdata);
+}
+
+static void hdmiphy_poweroff(struct hdmi_context *hdata)
+{
+	if (hdata->type != HDMI_TYPE14)
+		return;
+
+	DRM_DEBUG_KMS("\n");
+
+	/* PHY SW Reset */
+	hdmiphy_conf_reset(hdata);
+	/* For PHY Mode Setting */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_ENABLE_MODE_SET);
+
+	/* PHY Power Off */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_POWER,
+				HDMI_PHY_POWER_OFF);
+
+	/* For PHY Mode Setting */
+	hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_DISABLE_MODE_SET);
+}
+
+static void hdmiphy_conf_apply(struct hdmi_context *hdata)
+{
+	int ret;
+	int i;
+
+	/* pixel clock */
+	i = hdmi_find_phy_conf(hdata, hdata->mode_conf.pixel_clock);
+	if (i < 0) {
+		DRM_ERROR("failed to find hdmiphy conf\n");
+		return;
+	}
+
+	ret = hdmiphy_reg_write_buf(hdata, 0, hdata->phy_confs[i].conf, 32);
+	if (ret) {
+		DRM_ERROR("failed to configure hdmiphy\n");
+		return;
+	}
+
+	usleep_range(10000, 12000);
+
+	ret = hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE,
+				HDMI_PHY_DISABLE_MODE_SET);
+	if (ret) {
+		DRM_ERROR("failed to enable hdmiphy\n");
+		return;
+	}
+
+}
+
+static void hdmi_conf_apply(struct hdmi_context *hdata)
+{
+	hdmiphy_conf_reset(hdata);
+	hdmiphy_conf_apply(hdata);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	hdmi_start(hdata, false);
+	hdmi_conf_init(hdata);
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	hdmi_audio_init(hdata);
+
+	/* setting core registers */
+	hdmi_mode_apply(hdata);
+	hdmi_audio_control(hdata, true);
+
+	hdmi_regs_dump(hdata, "start");
+}
+
+static void hdmi_set_reg(u8 *reg_pair, int num_bytes, u32 value)
+{
+	int i;
+	BUG_ON(num_bytes > 4);
+	for (i = 0; i < num_bytes; i++)
+		reg_pair[i] = (value >> (8 * i)) & 0xff;
+}
+
+static void hdmi_v13_mode_set(struct hdmi_context *hdata,
+			struct drm_display_mode *m)
+{
+	struct hdmi_v13_core_regs *core = &hdata->mode_conf.conf.v13_conf.core;
+	struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v13_conf.tg;
+	unsigned int val;
+
+	hdata->mode_conf.cea_video_id =
+		drm_match_cea_mode((struct drm_display_mode *)m);
+	hdata->mode_conf.pixel_clock = m->clock * 1000;
+	hdata->mode_conf.aspect_ratio = m->picture_aspect_ratio;
+
+	hdmi_set_reg(core->h_blank, 2, m->htotal - m->hdisplay);
+	hdmi_set_reg(core->h_v_line, 3, (m->htotal << 12) | m->vtotal);
+
+	val = (m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0;
+	hdmi_set_reg(core->vsync_pol, 1, val);
+
+	val = (m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0;
+	hdmi_set_reg(core->int_pro_mode, 1, val);
+
+	val = (m->hsync_start - m->hdisplay - 2);
+	val |= ((m->hsync_end - m->hdisplay - 2) << 10);
+	val |= ((m->flags & DRM_MODE_FLAG_NHSYNC)  ? 1 : 0)<<20;
+	hdmi_set_reg(core->h_sync_gen, 3, val);
+
+	/*
+	 * Quirk requirement for exynos HDMI IP design,
+	 * 2 pixels less than the actual calculation for hsync_start
+	 * and end.
+	 */
+
+	/* Following values & calculations differ for different type of modes */
+	if (m->flags & DRM_MODE_FLAG_INTERLACE) {
+		/* Interlaced Mode */
+		val = ((m->vsync_end - m->vdisplay) / 2);
+		val |= ((m->vsync_start - m->vdisplay) / 2) << 12;
+		hdmi_set_reg(core->v_sync_gen1, 3, val);
+
+		val = m->vtotal / 2;
+		val |= ((m->vtotal - m->vdisplay) / 2) << 11;
+		hdmi_set_reg(core->v_blank, 3, val);
+
+		val = (m->vtotal +
+			((m->vsync_end - m->vsync_start) * 4) + 5) / 2;
+		val |= m->vtotal << 11;
+		hdmi_set_reg(core->v_blank_f, 3, val);
+
+		val = ((m->vtotal / 2) + 7);
+		val |= ((m->vtotal / 2) + 2) << 12;
+		hdmi_set_reg(core->v_sync_gen2, 3, val);
+
+		val = ((m->htotal / 2) + (m->hsync_start - m->hdisplay));
+		val |= ((m->htotal / 2) +
+			(m->hsync_start - m->hdisplay)) << 12;
+		hdmi_set_reg(core->v_sync_gen3, 3, val);
+
+		hdmi_set_reg(tg->vact_st, 2, (m->vtotal - m->vdisplay) / 2);
+		hdmi_set_reg(tg->vact_sz, 2, m->vdisplay / 2);
+
+		hdmi_set_reg(tg->vact_st2, 2, 0x249);/* Reset value + 1*/
+	} else {
+		/* Progressive Mode */
+
+		val = m->vtotal;
+		val |= (m->vtotal - m->vdisplay) << 11;
+		hdmi_set_reg(core->v_blank, 3, val);
+
+		hdmi_set_reg(core->v_blank_f, 3, 0);
+
+		val = (m->vsync_end - m->vdisplay);
+		val |= ((m->vsync_start - m->vdisplay) << 12);
+		hdmi_set_reg(core->v_sync_gen1, 3, val);
+
+		hdmi_set_reg(core->v_sync_gen2, 3, 0x1001);/* Reset value  */
+		hdmi_set_reg(core->v_sync_gen3, 3, 0x1001);/* Reset value  */
+		hdmi_set_reg(tg->vact_st, 2, m->vtotal - m->vdisplay);
+		hdmi_set_reg(tg->vact_sz, 2, m->vdisplay);
+		hdmi_set_reg(tg->vact_st2, 2, 0x248); /* Reset value */
+	}
+
+	/* Timing generator registers */
+	hdmi_set_reg(tg->cmd, 1, 0x0);
+	hdmi_set_reg(tg->h_fsz, 2, m->htotal);
+	hdmi_set_reg(tg->hact_st, 2, m->htotal - m->hdisplay);
+	hdmi_set_reg(tg->hact_sz, 2, m->hdisplay);
+	hdmi_set_reg(tg->v_fsz, 2, m->vtotal);
+	hdmi_set_reg(tg->vsync, 2, 0x1);
+	hdmi_set_reg(tg->vsync2, 2, 0x233); /* Reset value */
+	hdmi_set_reg(tg->field_chg, 2, 0x233); /* Reset value */
+	hdmi_set_reg(tg->vsync_top_hdmi, 2, 0x1); /* Reset value */
+	hdmi_set_reg(tg->vsync_bot_hdmi, 2, 0x233); /* Reset value */
+	hdmi_set_reg(tg->field_top_hdmi, 2, 0x1); /* Reset value */
+	hdmi_set_reg(tg->field_bot_hdmi, 2, 0x233); /* Reset value */
+	hdmi_set_reg(tg->tg_3d, 1, 0x0); /* Not used */
+}
+
+static void hdmi_v14_mode_set(struct hdmi_context *hdata,
+			struct drm_display_mode *m)
+{
+	struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v14_conf.tg;
+	struct hdmi_v14_core_regs *core =
+		&hdata->mode_conf.conf.v14_conf.core;
+
+	hdata->mode_conf.cea_video_id =
+		drm_match_cea_mode((struct drm_display_mode *)m);
+	hdata->mode_conf.pixel_clock = m->clock * 1000;
+	hdata->mode_conf.aspect_ratio = m->picture_aspect_ratio;
+
+	hdmi_set_reg(core->h_blank, 2, m->htotal - m->hdisplay);
+	hdmi_set_reg(core->v_line, 2, m->vtotal);
+	hdmi_set_reg(core->h_line, 2, m->htotal);
+	hdmi_set_reg(core->hsync_pol, 1,
+			(m->flags & DRM_MODE_FLAG_NHSYNC)  ? 1 : 0);
+	hdmi_set_reg(core->vsync_pol, 1,
+			(m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0);
+	hdmi_set_reg(core->int_pro_mode, 1,
+			(m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0);
+
+	/*
+	 * Quirk requirement for exynos 5 HDMI IP design,
+	 * 2 pixels less than the actual calculation for hsync_start
+	 * and end.
+	 */
+
+	/* Following values & calculations differ for different type of modes */
+	if (m->flags & DRM_MODE_FLAG_INTERLACE) {
+		/* Interlaced Mode */
+		hdmi_set_reg(core->v_sync_line_bef_2, 2,
+			(m->vsync_end - m->vdisplay) / 2);
+		hdmi_set_reg(core->v_sync_line_bef_1, 2,
+			(m->vsync_start - m->vdisplay) / 2);
+		hdmi_set_reg(core->v2_blank, 2, m->vtotal / 2);
+		hdmi_set_reg(core->v1_blank, 2, (m->vtotal - m->vdisplay) / 2);
+		hdmi_set_reg(core->v_blank_f0, 2, m->vtotal - m->vdisplay / 2);
+		hdmi_set_reg(core->v_blank_f1, 2, m->vtotal);
+		hdmi_set_reg(core->v_sync_line_aft_2, 2, (m->vtotal / 2) + 7);
+		hdmi_set_reg(core->v_sync_line_aft_1, 2, (m->vtotal / 2) + 2);
+		hdmi_set_reg(core->v_sync_line_aft_pxl_2, 2,
+			(m->htotal / 2) + (m->hsync_start - m->hdisplay));
+		hdmi_set_reg(core->v_sync_line_aft_pxl_1, 2,
+			(m->htotal / 2) + (m->hsync_start - m->hdisplay));
+		hdmi_set_reg(tg->vact_st, 2, (m->vtotal - m->vdisplay) / 2);
+		hdmi_set_reg(tg->vact_sz, 2, m->vdisplay / 2);
+		hdmi_set_reg(tg->vact_st2, 2, m->vtotal - m->vdisplay / 2);
+		hdmi_set_reg(tg->vsync2, 2, (m->vtotal / 2) + 1);
+		hdmi_set_reg(tg->vsync_bot_hdmi, 2, (m->vtotal / 2) + 1);
+		hdmi_set_reg(tg->field_bot_hdmi, 2, (m->vtotal / 2) + 1);
+		hdmi_set_reg(tg->vact_st3, 2, 0x0);
+		hdmi_set_reg(tg->vact_st4, 2, 0x0);
+	} else {
+		/* Progressive Mode */
+		hdmi_set_reg(core->v_sync_line_bef_2, 2,
+			m->vsync_end - m->vdisplay);
+		hdmi_set_reg(core->v_sync_line_bef_1, 2,
+			m->vsync_start - m->vdisplay);
+		hdmi_set_reg(core->v2_blank, 2, m->vtotal);
+		hdmi_set_reg(core->v1_blank, 2, m->vtotal - m->vdisplay);
+		hdmi_set_reg(core->v_blank_f0, 2, 0xffff);
+		hdmi_set_reg(core->v_blank_f1, 2, 0xffff);
+		hdmi_set_reg(core->v_sync_line_aft_2, 2, 0xffff);
+		hdmi_set_reg(core->v_sync_line_aft_1, 2, 0xffff);
+		hdmi_set_reg(core->v_sync_line_aft_pxl_2, 2, 0xffff);
+		hdmi_set_reg(core->v_sync_line_aft_pxl_1, 2, 0xffff);
+		hdmi_set_reg(tg->vact_st, 2, m->vtotal - m->vdisplay);
+		hdmi_set_reg(tg->vact_sz, 2, m->vdisplay);
+		hdmi_set_reg(tg->vact_st2, 2, 0x248); /* Reset value */
+		hdmi_set_reg(tg->vact_st3, 2, 0x47b); /* Reset value */
+		hdmi_set_reg(tg->vact_st4, 2, 0x6ae); /* Reset value */
+		hdmi_set_reg(tg->vsync2, 2, 0x233); /* Reset value */
+		hdmi_set_reg(tg->vsync_bot_hdmi, 2, 0x233); /* Reset value */
+		hdmi_set_reg(tg->field_bot_hdmi, 2, 0x233); /* Reset value */
+	}
+
+	/* Following values & calculations are same irrespective of mode type */
+	hdmi_set_reg(core->h_sync_start, 2, m->hsync_start - m->hdisplay - 2);
+	hdmi_set_reg(core->h_sync_end, 2, m->hsync_end - m->hdisplay - 2);
+	hdmi_set_reg(core->vact_space_1, 2, 0xffff);
+	hdmi_set_reg(core->vact_space_2, 2, 0xffff);
+	hdmi_set_reg(core->vact_space_3, 2, 0xffff);
+	hdmi_set_reg(core->vact_space_4, 2, 0xffff);
+	hdmi_set_reg(core->vact_space_5, 2, 0xffff);
+	hdmi_set_reg(core->vact_space_6, 2, 0xffff);
+	hdmi_set_reg(core->v_blank_f2, 2, 0xffff);
+	hdmi_set_reg(core->v_blank_f3, 2, 0xffff);
+	hdmi_set_reg(core->v_blank_f4, 2, 0xffff);
+	hdmi_set_reg(core->v_blank_f5, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_3, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_4, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_5, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_6, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_pxl_3, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_pxl_4, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_pxl_5, 2, 0xffff);
+	hdmi_set_reg(core->v_sync_line_aft_pxl_6, 2, 0xffff);
+
+	/* Timing generator registers */
+	hdmi_set_reg(tg->cmd, 1, 0x0);
+	hdmi_set_reg(tg->h_fsz, 2, m->htotal);
+	hdmi_set_reg(tg->hact_st, 2, m->htotal - m->hdisplay);
+	hdmi_set_reg(tg->hact_sz, 2, m->hdisplay);
+	hdmi_set_reg(tg->v_fsz, 2, m->vtotal);
+	hdmi_set_reg(tg->vsync, 2, 0x1);
+	hdmi_set_reg(tg->field_chg, 2, 0x233); /* Reset value */
+	hdmi_set_reg(tg->vsync_top_hdmi, 2, 0x1); /* Reset value */
+	hdmi_set_reg(tg->field_top_hdmi, 2, 0x1); /* Reset value */
+	hdmi_set_reg(tg->tg_3d, 1, 0x0);
+}
+
+static void hdmi_mode_set(struct exynos_drm_display *display,
+			struct drm_display_mode *mode)
+{
+	struct hdmi_context *hdata = display_to_hdmi(display);
+	struct drm_display_mode *m = mode;
+
+	DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%s\n",
+		m->hdisplay, m->vdisplay,
+		m->vrefresh, (m->flags & DRM_MODE_FLAG_INTERLACE) ?
+		"INTERLACED" : "PROGRESSIVE");
+
+	/* preserve mode information for later use. */
+	drm_mode_copy(&hdata->current_mode, mode);
+
+	if (hdata->type == HDMI_TYPE13)
+		hdmi_v13_mode_set(hdata, mode);
+	else
+		hdmi_v14_mode_set(hdata, mode);
+}
+
+static void hdmi_commit(struct exynos_drm_display *display)
+{
+	struct hdmi_context *hdata = display_to_hdmi(display);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	if (!hdata->powered) {
+		mutex_unlock(&hdata->hdmi_mutex);
+		return;
+	}
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	hdmi_conf_apply(hdata);
+}
+
+static void hdmi_poweron(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	mutex_lock(&hdata->hdmi_mutex);
+	if (hdata->powered) {
+		mutex_unlock(&hdata->hdmi_mutex);
+		return;
+	}
+
+	hdata->powered = true;
+
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	pm_runtime_get_sync(hdata->dev);
+
+	if (regulator_bulk_enable(res->regul_count, res->regul_bulk))
+		DRM_DEBUG_KMS("failed to enable regulator bulk\n");
+
+	/* set pmu hdmiphy control bit to enable hdmiphy */
+	regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
+			PMU_HDMI_PHY_ENABLE_BIT, 1);
+
+	clk_prepare_enable(res->hdmi);
+	clk_prepare_enable(res->sclk_hdmi);
+
+	hdmiphy_poweron(hdata);
+	hdmi_commit(&hdata->display);
+}
+
+static void hdmi_poweroff(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	mutex_lock(&hdata->hdmi_mutex);
+	if (!hdata->powered)
+		goto out;
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	/* HDMI System Disable */
+	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_EN);
+
+	hdmiphy_poweroff(hdata);
+
+	cancel_delayed_work(&hdata->hotplug_work);
+
+	clk_disable_unprepare(res->sclk_hdmi);
+	clk_disable_unprepare(res->hdmi);
+
+	/* reset pmu hdmiphy control bit to disable hdmiphy */
+	regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
+			PMU_HDMI_PHY_ENABLE_BIT, 0);
+
+	regulator_bulk_disable(res->regul_count, res->regul_bulk);
+
+	pm_runtime_put_sync(hdata->dev);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	hdata->powered = false;
+
+out:
+	mutex_unlock(&hdata->hdmi_mutex);
+}
+
+static void hdmi_dpms(struct exynos_drm_display *display, int mode)
+{
+	struct hdmi_context *hdata = display_to_hdmi(display);
+	struct drm_encoder *encoder = hdata->encoder;
+	struct drm_crtc *crtc = encoder->crtc;
+	const struct drm_crtc_helper_funcs *funcs = NULL;
+
+	DRM_DEBUG_KMS("mode %d\n", mode);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		hdmi_poweron(hdata);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		/*
+		 * The SFRs of VP and Mixer are updated by Vertical Sync of
+		 * Timing generator which is a part of HDMI so the sequence
+		 * to disable TV Subsystem should be as following,
+		 *	VP -> Mixer -> HDMI
+		 *
+		 * Below codes will try to disable Mixer and VP(if used)
+		 * prior to disabling HDMI.
+		 */
+		if (crtc)
+			funcs = crtc->helper_private;
+		if (funcs && funcs->dpms)
+			(*funcs->dpms)(crtc, mode);
+
+		hdmi_poweroff(hdata);
+		break;
+	default:
+		DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+		break;
+	}
+}
+
+static struct exynos_drm_display_ops hdmi_display_ops = {
+	.create_connector = hdmi_create_connector,
+	.mode_fixup	= hdmi_mode_fixup,
+	.mode_set	= hdmi_mode_set,
+	.dpms		= hdmi_dpms,
+	.commit		= hdmi_commit,
+};
+
+static void hdmi_hotplug_work_func(struct work_struct *work)
+{
+	struct hdmi_context *hdata;
+
+	hdata = container_of(work, struct hdmi_context, hotplug_work.work);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	hdata->hpd = gpio_get_value(hdata->hpd_gpio);
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	if (hdata->drm_dev)
+		drm_helper_hpd_irq_event(hdata->drm_dev);
+}
+
+static irqreturn_t hdmi_irq_thread(int irq, void *arg)
+{
+	struct hdmi_context *hdata = arg;
+
+	mod_delayed_work(system_wq, &hdata->hotplug_work,
+			msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS));
+
+	return IRQ_HANDLED;
+}
+
+static int hdmi_resources_init(struct hdmi_context *hdata)
+{
+	struct device *dev = hdata->dev;
+	struct hdmi_resources *res = &hdata->res;
+	static char *supply[] = {
+		"vdd",
+		"vdd_osc",
+		"vdd_pll",
+	};
+	int i, ret;
+
+	DRM_DEBUG_KMS("HDMI resource init\n");
+
+	/* get clocks, power */
+	res->hdmi = devm_clk_get(dev, "hdmi");
+	if (IS_ERR(res->hdmi)) {
+		DRM_ERROR("failed to get clock 'hdmi'\n");
+		ret = PTR_ERR(res->hdmi);
+		goto fail;
+	}
+	res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi");
+	if (IS_ERR(res->sclk_hdmi)) {
+		DRM_ERROR("failed to get clock 'sclk_hdmi'\n");
+		ret = PTR_ERR(res->sclk_hdmi);
+		goto fail;
+	}
+	res->sclk_pixel = devm_clk_get(dev, "sclk_pixel");
+	if (IS_ERR(res->sclk_pixel)) {
+		DRM_ERROR("failed to get clock 'sclk_pixel'\n");
+		ret = PTR_ERR(res->sclk_pixel);
+		goto fail;
+	}
+	res->sclk_hdmiphy = devm_clk_get(dev, "sclk_hdmiphy");
+	if (IS_ERR(res->sclk_hdmiphy)) {
+		DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n");
+		ret = PTR_ERR(res->sclk_hdmiphy);
+		goto fail;
+	}
+	res->mout_hdmi = devm_clk_get(dev, "mout_hdmi");
+	if (IS_ERR(res->mout_hdmi)) {
+		DRM_ERROR("failed to get clock 'mout_hdmi'\n");
+		ret = PTR_ERR(res->mout_hdmi);
+		goto fail;
+	}
+
+	clk_set_parent(res->mout_hdmi, res->sclk_pixel);
+
+	res->regul_bulk = devm_kzalloc(dev, ARRAY_SIZE(supply) *
+		sizeof(res->regul_bulk[0]), GFP_KERNEL);
+	if (!res->regul_bulk) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+	for (i = 0; i < ARRAY_SIZE(supply); ++i) {
+		res->regul_bulk[i].supply = supply[i];
+		res->regul_bulk[i].consumer = NULL;
+	}
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk);
+	if (ret) {
+		DRM_ERROR("failed to get regulators\n");
+		return ret;
+	}
+	res->regul_count = ARRAY_SIZE(supply);
+
+	res->reg_hdmi_en = devm_regulator_get(dev, "hdmi-en");
+	if (IS_ERR(res->reg_hdmi_en) && PTR_ERR(res->reg_hdmi_en) != -ENOENT) {
+		DRM_ERROR("failed to get hdmi-en regulator\n");
+		return PTR_ERR(res->reg_hdmi_en);
+	}
+	if (!IS_ERR(res->reg_hdmi_en)) {
+		ret = regulator_enable(res->reg_hdmi_en);
+		if (ret) {
+			DRM_ERROR("failed to enable hdmi-en regulator\n");
+			return ret;
+		}
+	} else
+		res->reg_hdmi_en = NULL;
+
+	return ret;
+fail:
+	DRM_ERROR("HDMI resource init - failed\n");
+	return ret;
+}
+
+static struct s5p_hdmi_platform_data *drm_hdmi_dt_parse_pdata
+					(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct s5p_hdmi_platform_data *pd;
+	u32 value;
+
+	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+	if (!pd)
+		goto err_data;
+
+	if (!of_find_property(np, "hpd-gpio", &value)) {
+		DRM_ERROR("no hpd gpio property found\n");
+		goto err_data;
+	}
+
+	pd->hpd_gpio = of_get_named_gpio(np, "hpd-gpio", 0);
+
+	return pd;
+
+err_data:
+	return NULL;
+}
+
+static struct of_device_id hdmi_match_types[] = {
+	{
+		.compatible = "samsung,exynos5-hdmi",
+		.data = &exynos5_hdmi_driver_data,
+	}, {
+		.compatible = "samsung,exynos4210-hdmi",
+		.data = &exynos4210_hdmi_driver_data,
+	}, {
+		.compatible = "samsung,exynos4212-hdmi",
+		.data = &exynos4212_hdmi_driver_data,
+	}, {
+		.compatible = "samsung,exynos5420-hdmi",
+		.data = &exynos5420_hdmi_driver_data,
+	}, {
+		/* end node */
+	}
+};
+MODULE_DEVICE_TABLE (of, hdmi_match_types);
+
+static int hdmi_bind(struct device *dev, struct device *master, void *data)
+{
+	struct drm_device *drm_dev = data;
+	struct hdmi_context *hdata = dev_get_drvdata(dev);
+
+	hdata->drm_dev = drm_dev;
+
+	return exynos_drm_create_enc_conn(drm_dev, &hdata->display);
+}
+
+static void hdmi_unbind(struct device *dev, struct device *master, void *data)
+{
+}
+
+static const struct component_ops hdmi_component_ops = {
+	.bind	= hdmi_bind,
+	.unbind = hdmi_unbind,
+};
+
+static struct device_node *hdmi_legacy_ddc_dt_binding(struct device *dev)
+{
+	const char *compatible_str = "samsung,exynos4210-hdmiddc";
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, compatible_str);
+	if (np)
+		return of_get_next_parent(np);
+
+	return NULL;
+}
+
+static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
+{
+	const char *compatible_str = "samsung,exynos4212-hdmiphy";
+
+	return of_find_compatible_node(NULL, NULL, compatible_str);
+}
+
+static int hdmi_probe(struct platform_device *pdev)
+{
+	struct device_node *ddc_node, *phy_node;
+	struct s5p_hdmi_platform_data *pdata;
+	struct hdmi_driver_data *drv_data;
+	const struct of_device_id *match;
+	struct device *dev = &pdev->dev;
+	struct hdmi_context *hdata;
+	struct resource *res;
+	int ret;
+
+	if (!dev->of_node)
+		return -ENODEV;
+
+	pdata = drm_hdmi_dt_parse_pdata(dev);
+	if (!pdata)
+		return -EINVAL;
+
+	hdata = devm_kzalloc(dev, sizeof(struct hdmi_context), GFP_KERNEL);
+	if (!hdata)
+		return -ENOMEM;
+
+	hdata->display.type = EXYNOS_DISPLAY_TYPE_HDMI;
+	hdata->display.ops = &hdmi_display_ops;
+
+	ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR,
+					hdata->display.type);
+	if (ret)
+		return ret;
+
+	mutex_init(&hdata->hdmi_mutex);
+
+	platform_set_drvdata(pdev, hdata);
+
+	match = of_match_node(hdmi_match_types, dev->of_node);
+	if (!match) {
+		ret = -ENODEV;
+		goto err_del_component;
+	}
+
+	drv_data = (struct hdmi_driver_data *)match->data;
+	hdata->type = drv_data->type;
+	hdata->phy_confs = drv_data->phy_confs;
+	hdata->phy_conf_count = drv_data->phy_conf_count;
+
+	hdata->hpd_gpio = pdata->hpd_gpio;
+	hdata->dev = dev;
+
+	ret = hdmi_resources_init(hdata);
+	if (ret) {
+		DRM_ERROR("hdmi_resources_init failed\n");
+		return ret;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hdata->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(hdata->regs)) {
+		ret = PTR_ERR(hdata->regs);
+		goto err_del_component;
+	}
+
+	ret = devm_gpio_request(dev, hdata->hpd_gpio, "HPD");
+	if (ret) {
+		DRM_ERROR("failed to request HPD gpio\n");
+		goto err_del_component;
+	}
+
+	ddc_node = hdmi_legacy_ddc_dt_binding(dev);
+	if (ddc_node)
+		goto out_get_ddc_adpt;
+
+	/* DDC i2c driver */
+	ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
+	if (!ddc_node) {
+		DRM_ERROR("Failed to find ddc node in device tree\n");
+		ret = -ENODEV;
+		goto err_del_component;
+	}
+
+out_get_ddc_adpt:
+	hdata->ddc_adpt = of_find_i2c_adapter_by_node(ddc_node);
+	if (!hdata->ddc_adpt) {
+		DRM_ERROR("Failed to get ddc i2c adapter by node\n");
+		return -EPROBE_DEFER;
+	}
+
+	phy_node = hdmi_legacy_phy_dt_binding(dev);
+	if (phy_node)
+		goto out_get_phy_port;
+
+	/* hdmiphy i2c driver */
+	phy_node = of_parse_phandle(dev->of_node, "phy", 0);
+	if (!phy_node) {
+		DRM_ERROR("Failed to find hdmiphy node in device tree\n");
+		ret = -ENODEV;
+		goto err_ddc;
+	}
+
+out_get_phy_port:
+	if (drv_data->is_apb_phy) {
+		hdata->regs_hdmiphy = of_iomap(phy_node, 0);
+		if (!hdata->regs_hdmiphy) {
+			DRM_ERROR("failed to ioremap hdmi phy\n");
+			ret = -ENOMEM;
+			goto err_ddc;
+		}
+	} else {
+		hdata->hdmiphy_port = of_find_i2c_device_by_node(phy_node);
+		if (!hdata->hdmiphy_port) {
+			DRM_ERROR("Failed to get hdmi phy i2c client\n");
+			ret = -EPROBE_DEFER;
+			goto err_ddc;
+		}
+	}
+
+	hdata->irq = gpio_to_irq(hdata->hpd_gpio);
+	if (hdata->irq < 0) {
+		DRM_ERROR("failed to get GPIO irq\n");
+		ret = hdata->irq;
+		goto err_hdmiphy;
+	}
+
+	hdata->hpd = gpio_get_value(hdata->hpd_gpio);
+
+	INIT_DELAYED_WORK(&hdata->hotplug_work, hdmi_hotplug_work_func);
+
+	ret = devm_request_threaded_irq(dev, hdata->irq, NULL,
+			hdmi_irq_thread, IRQF_TRIGGER_RISING |
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			"hdmi", hdata);
+	if (ret) {
+		DRM_ERROR("failed to register hdmi interrupt\n");
+		goto err_hdmiphy;
+	}
+
+	hdata->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
+			"samsung,syscon-phandle");
+	if (IS_ERR(hdata->pmureg)) {
+		DRM_ERROR("syscon regmap lookup failed.\n");
+		ret = -EPROBE_DEFER;
+		goto err_hdmiphy;
+	}
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(&pdev->dev, &hdmi_component_ops);
+	if (ret)
+		goto err_disable_pm_runtime;
+
+	return ret;
+
+err_disable_pm_runtime:
+	pm_runtime_disable(dev);
+
+err_hdmiphy:
+	if (hdata->hdmiphy_port)
+		put_device(&hdata->hdmiphy_port->dev);
+err_ddc:
+	put_device(&hdata->ddc_adpt->dev);
+
+err_del_component:
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+
+	return ret;
+}
+
+static int hdmi_remove(struct platform_device *pdev)
+{
+	struct hdmi_context *hdata = platform_get_drvdata(pdev);
+
+	cancel_delayed_work_sync(&hdata->hotplug_work);
+
+	if (hdata->res.reg_hdmi_en)
+		regulator_disable(hdata->res.reg_hdmi_en);
+
+	if (hdata->hdmiphy_port)
+		put_device(&hdata->hdmiphy_port->dev);
+	put_device(&hdata->ddc_adpt->dev);
+
+	pm_runtime_disable(&pdev->dev);
+	component_del(&pdev->dev, &hdmi_component_ops);
+
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CONNECTOR);
+	return 0;
+}
+
+struct platform_driver hdmi_driver = {
+	.probe		= hdmi_probe,
+	.remove		= hdmi_remove,
+	.driver		= {
+		.name	= "exynos-hdmi",
+		.owner	= THIS_MODULE,
+		.of_match_table = hdmi_match_types,
+	},
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_mixer.c b/kernel/drivers/gpu/drm/exynos/exynos_mixer.c
new file mode 100644
index 000000000..8874c1fcb
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -0,0 +1,1318 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on drivers/media/video/s5p-tv/mixer_reg.c
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <drm/drmP.h>
+
+#include "regs-mixer.h"
+#include "regs-vp.h"
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+#include <linux/of.h>
+#include <linux/component.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
+#include "exynos_drm_iommu.h"
+#include "exynos_mixer.h"
+
+#define MIXER_WIN_NR		3
+#define MIXER_DEFAULT_WIN	0
+
+/* The pixelformats that are natively supported by the mixer. */
+#define MXR_FORMAT_RGB565	4
+#define MXR_FORMAT_ARGB1555	5
+#define MXR_FORMAT_ARGB4444	6
+#define MXR_FORMAT_ARGB8888	7
+
+struct mixer_resources {
+	int			irq;
+	void __iomem		*mixer_regs;
+	void __iomem		*vp_regs;
+	spinlock_t		reg_slock;
+	struct clk		*mixer;
+	struct clk		*vp;
+	struct clk		*hdmi;
+	struct clk		*sclk_mixer;
+	struct clk		*sclk_hdmi;
+	struct clk		*mout_mixer;
+};
+
+enum mixer_version_id {
+	MXR_VER_0_0_0_16,
+	MXR_VER_16_0_33_0,
+	MXR_VER_128_0_0_184,
+};
+
+struct mixer_context {
+	struct platform_device *pdev;
+	struct device		*dev;
+	struct drm_device	*drm_dev;
+	struct exynos_drm_crtc	*crtc;
+	struct exynos_drm_plane	planes[MIXER_WIN_NR];
+	int			pipe;
+	bool			interlace;
+	bool			powered;
+	bool			vp_enabled;
+	bool			has_sclk;
+	u32			int_en;
+
+	struct mutex		mixer_mutex;
+	struct mixer_resources	mixer_res;
+	enum mixer_version_id	mxr_ver;
+	wait_queue_head_t	wait_vsync_queue;
+	atomic_t		wait_vsync_event;
+};
+
+struct mixer_drv_data {
+	enum mixer_version_id	version;
+	bool					is_vp_enabled;
+	bool					has_sclk;
+};
+
+static const u8 filter_y_horiz_tap8[] = {
+	0,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+	-1,	-1,	-1,	-1,	-1,	0,	0,	0,
+	0,	2,	4,	5,	6,	6,	6,	6,
+	6,	5,	5,	4,	3,	2,	1,	1,
+	0,	-6,	-12,	-16,	-18,	-20,	-21,	-20,
+	-20,	-18,	-16,	-13,	-10,	-8,	-5,	-2,
+	127,	126,	125,	121,	114,	107,	99,	89,
+	79,	68,	57,	46,	35,	25,	16,	8,
+};
+
+static const u8 filter_y_vert_tap4[] = {
+	0,	-3,	-6,	-8,	-8,	-8,	-8,	-7,
+	-6,	-5,	-4,	-3,	-2,	-1,	-1,	0,
+	127,	126,	124,	118,	111,	102,	92,	81,
+	70,	59,	48,	37,	27,	19,	11,	5,
+	0,	5,	11,	19,	27,	37,	48,	59,
+	70,	81,	92,	102,	111,	118,	124,	126,
+	0,	0,	-1,	-1,	-2,	-3,	-4,	-5,
+	-6,	-7,	-8,	-8,	-8,	-8,	-6,	-3,
+};
+
+static const u8 filter_cr_horiz_tap4[] = {
+	0,	-3,	-6,	-8,	-8,	-8,	-8,	-7,
+	-6,	-5,	-4,	-3,	-2,	-1,	-1,	0,
+	127,	126,	124,	118,	111,	102,	92,	81,
+	70,	59,	48,	37,	27,	19,	11,	5,
+};
+
+static inline u32 vp_reg_read(struct mixer_resources *res, u32 reg_id)
+{
+	return readl(res->vp_regs + reg_id);
+}
+
+static inline void vp_reg_write(struct mixer_resources *res, u32 reg_id,
+				 u32 val)
+{
+	writel(val, res->vp_regs + reg_id);
+}
+
+static inline void vp_reg_writemask(struct mixer_resources *res, u32 reg_id,
+				 u32 val, u32 mask)
+{
+	u32 old = vp_reg_read(res, reg_id);
+
+	val = (val & mask) | (old & ~mask);
+	writel(val, res->vp_regs + reg_id);
+}
+
+static inline u32 mixer_reg_read(struct mixer_resources *res, u32 reg_id)
+{
+	return readl(res->mixer_regs + reg_id);
+}
+
+static inline void mixer_reg_write(struct mixer_resources *res, u32 reg_id,
+				 u32 val)
+{
+	writel(val, res->mixer_regs + reg_id);
+}
+
+static inline void mixer_reg_writemask(struct mixer_resources *res,
+				 u32 reg_id, u32 val, u32 mask)
+{
+	u32 old = mixer_reg_read(res, reg_id);
+
+	val = (val & mask) | (old & ~mask);
+	writel(val, res->mixer_regs + reg_id);
+}
+
+static void mixer_regs_dump(struct mixer_context *ctx)
+{
+#define DUMPREG(reg_id) \
+do { \
+	DRM_DEBUG_KMS(#reg_id " = %08x\n", \
+		(u32)readl(ctx->mixer_res.mixer_regs + reg_id)); \
+} while (0)
+
+	DUMPREG(MXR_STATUS);
+	DUMPREG(MXR_CFG);
+	DUMPREG(MXR_INT_EN);
+	DUMPREG(MXR_INT_STATUS);
+
+	DUMPREG(MXR_LAYER_CFG);
+	DUMPREG(MXR_VIDEO_CFG);
+
+	DUMPREG(MXR_GRAPHIC0_CFG);
+	DUMPREG(MXR_GRAPHIC0_BASE);
+	DUMPREG(MXR_GRAPHIC0_SPAN);
+	DUMPREG(MXR_GRAPHIC0_WH);
+	DUMPREG(MXR_GRAPHIC0_SXY);
+	DUMPREG(MXR_GRAPHIC0_DXY);
+
+	DUMPREG(MXR_GRAPHIC1_CFG);
+	DUMPREG(MXR_GRAPHIC1_BASE);
+	DUMPREG(MXR_GRAPHIC1_SPAN);
+	DUMPREG(MXR_GRAPHIC1_WH);
+	DUMPREG(MXR_GRAPHIC1_SXY);
+	DUMPREG(MXR_GRAPHIC1_DXY);
+#undef DUMPREG
+}
+
+static void vp_regs_dump(struct mixer_context *ctx)
+{
+#define DUMPREG(reg_id) \
+do { \
+	DRM_DEBUG_KMS(#reg_id " = %08x\n", \
+		(u32) readl(ctx->mixer_res.vp_regs + reg_id)); \
+} while (0)
+
+	DUMPREG(VP_ENABLE);
+	DUMPREG(VP_SRESET);
+	DUMPREG(VP_SHADOW_UPDATE);
+	DUMPREG(VP_FIELD_ID);
+	DUMPREG(VP_MODE);
+	DUMPREG(VP_IMG_SIZE_Y);
+	DUMPREG(VP_IMG_SIZE_C);
+	DUMPREG(VP_PER_RATE_CTRL);
+	DUMPREG(VP_TOP_Y_PTR);
+	DUMPREG(VP_BOT_Y_PTR);
+	DUMPREG(VP_TOP_C_PTR);
+	DUMPREG(VP_BOT_C_PTR);
+	DUMPREG(VP_ENDIAN_MODE);
+	DUMPREG(VP_SRC_H_POSITION);
+	DUMPREG(VP_SRC_V_POSITION);
+	DUMPREG(VP_SRC_WIDTH);
+	DUMPREG(VP_SRC_HEIGHT);
+	DUMPREG(VP_DST_H_POSITION);
+	DUMPREG(VP_DST_V_POSITION);
+	DUMPREG(VP_DST_WIDTH);
+	DUMPREG(VP_DST_HEIGHT);
+	DUMPREG(VP_H_RATIO);
+	DUMPREG(VP_V_RATIO);
+
+#undef DUMPREG
+}
+
+static inline void vp_filter_set(struct mixer_resources *res,
+		int reg_id, const u8 *data, unsigned int size)
+{
+	/* assure 4-byte align */
+	BUG_ON(size & 3);
+	for (; size; size -= 4, reg_id += 4, data += 4) {
+		u32 val = (data[0] << 24) |  (data[1] << 16) |
+			(data[2] << 8) | data[3];
+		vp_reg_write(res, reg_id, val);
+	}
+}
+
+static void vp_default_filter(struct mixer_resources *res)
+{
+	vp_filter_set(res, VP_POLY8_Y0_LL,
+		filter_y_horiz_tap8, sizeof(filter_y_horiz_tap8));
+	vp_filter_set(res, VP_POLY4_Y0_LL,
+		filter_y_vert_tap4, sizeof(filter_y_vert_tap4));
+	vp_filter_set(res, VP_POLY4_C0_LL,
+		filter_cr_horiz_tap4, sizeof(filter_cr_horiz_tap4));
+}
+
+static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	/* block update on vsync */
+	mixer_reg_writemask(res, MXR_STATUS, enable ?
+			MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE);
+
+	if (ctx->vp_enabled)
+		vp_reg_write(res, VP_SHADOW_UPDATE, enable ?
+			VP_SHADOW_UPDATE_ENABLE : 0);
+}
+
+static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val;
+
+	/* choosing between interlace and progressive mode */
+	val = (ctx->interlace ? MXR_CFG_SCAN_INTERLACE :
+				MXR_CFG_SCAN_PROGRESSIVE);
+
+	if (ctx->mxr_ver != MXR_VER_128_0_0_184) {
+		/* choosing between proper HD and SD mode */
+		if (height <= 480)
+			val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD;
+		else if (height <= 576)
+			val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD;
+		else if (height <= 720)
+			val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
+		else if (height <= 1080)
+			val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD;
+		else
+			val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
+	}
+
+	mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_SCAN_MASK);
+}
+
+static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val;
+
+	if (height == 480) {
+		val = MXR_CFG_RGB601_0_255;
+	} else if (height == 576) {
+		val = MXR_CFG_RGB601_0_255;
+	} else if (height == 720) {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	} else if (height == 1080) {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	} else {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	}
+
+	mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK);
+}
+
+static void mixer_cfg_layer(struct mixer_context *ctx, unsigned int win,
+				bool enable)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val = enable ? ~0 : 0;
+
+	switch (win) {
+	case 0:
+		mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP0_ENABLE);
+		break;
+	case 1:
+		mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE);
+		break;
+	case 2:
+		if (ctx->vp_enabled) {
+			vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
+			mixer_reg_writemask(res, MXR_CFG, val,
+				MXR_CFG_VP_ENABLE);
+
+			/* control blending of graphic layer 0 */
+			mixer_reg_writemask(res, MXR_GRAPHIC_CFG(0), val,
+					MXR_GRP_CFG_BLEND_PRE_MUL |
+					MXR_GRP_CFG_PIXEL_BLEND_EN);
+		}
+		break;
+	}
+}
+
+static void mixer_run(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN);
+}
+
+static void mixer_stop(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	int timeout = 20;
+
+	mixer_reg_writemask(res, MXR_STATUS, 0, MXR_STATUS_REG_RUN);
+
+	while (!(mixer_reg_read(res, MXR_STATUS) & MXR_STATUS_REG_IDLE) &&
+			--timeout)
+		usleep_range(10000, 12000);
+}
+
+static void vp_video_buffer(struct mixer_context *ctx, unsigned int win)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	struct exynos_drm_plane *plane;
+	dma_addr_t luma_addr[2], chroma_addr[2];
+	bool tiled_mode = false;
+	bool crcb_mode = false;
+	u32 val;
+
+	plane = &ctx->planes[win];
+
+	switch (plane->pixel_format) {
+	case DRM_FORMAT_NV12:
+		crcb_mode = false;
+		break;
+	case DRM_FORMAT_NV21:
+		crcb_mode = true;
+		break;
+	default:
+		DRM_ERROR("pixel format for vp is wrong [%d].\n",
+				plane->pixel_format);
+		return;
+	}
+
+	luma_addr[0] = plane->dma_addr[0];
+	chroma_addr[0] = plane->dma_addr[1];
+
+	if (plane->scan_flag & DRM_MODE_FLAG_INTERLACE) {
+		ctx->interlace = true;
+		if (tiled_mode) {
+			luma_addr[1] = luma_addr[0] + 0x40;
+			chroma_addr[1] = chroma_addr[0] + 0x40;
+		} else {
+			luma_addr[1] = luma_addr[0] + plane->pitch;
+			chroma_addr[1] = chroma_addr[0] + plane->pitch;
+		}
+	} else {
+		ctx->interlace = false;
+		luma_addr[1] = 0;
+		chroma_addr[1] = 0;
+	}
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	/* interlace or progressive scan mode */
+	val = (ctx->interlace ? ~0 : 0);
+	vp_reg_writemask(res, VP_MODE, val, VP_MODE_LINE_SKIP);
+
+	/* setup format */
+	val = (crcb_mode ? VP_MODE_NV21 : VP_MODE_NV12);
+	val |= (tiled_mode ? VP_MODE_MEM_TILED : VP_MODE_MEM_LINEAR);
+	vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
+
+	/* setting size of input image */
+	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(plane->pitch) |
+		VP_IMG_VSIZE(plane->fb_height));
+	/* chroma height has to reduced by 2 to avoid chroma distorions */
+	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(plane->pitch) |
+		VP_IMG_VSIZE(plane->fb_height / 2));
+
+	vp_reg_write(res, VP_SRC_WIDTH, plane->src_width);
+	vp_reg_write(res, VP_SRC_HEIGHT, plane->src_height);
+	vp_reg_write(res, VP_SRC_H_POSITION,
+			VP_SRC_H_POSITION_VAL(plane->src_x));
+	vp_reg_write(res, VP_SRC_V_POSITION, plane->src_y);
+
+	vp_reg_write(res, VP_DST_WIDTH, plane->crtc_width);
+	vp_reg_write(res, VP_DST_H_POSITION, plane->crtc_x);
+	if (ctx->interlace) {
+		vp_reg_write(res, VP_DST_HEIGHT, plane->crtc_height / 2);
+		vp_reg_write(res, VP_DST_V_POSITION, plane->crtc_y / 2);
+	} else {
+		vp_reg_write(res, VP_DST_HEIGHT, plane->crtc_height);
+		vp_reg_write(res, VP_DST_V_POSITION, plane->crtc_y);
+	}
+
+	vp_reg_write(res, VP_H_RATIO, plane->h_ratio);
+	vp_reg_write(res, VP_V_RATIO, plane->v_ratio);
+
+	vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE);
+
+	/* set buffer address to vp */
+	vp_reg_write(res, VP_TOP_Y_PTR, luma_addr[0]);
+	vp_reg_write(res, VP_BOT_Y_PTR, luma_addr[1]);
+	vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]);
+	vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]);
+
+	mixer_cfg_scan(ctx, plane->mode_height);
+	mixer_cfg_rgb_fmt(ctx, plane->mode_height);
+	mixer_cfg_layer(ctx, win, true);
+	mixer_run(ctx);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+
+	mixer_regs_dump(ctx);
+	vp_regs_dump(ctx);
+}
+
+static void mixer_layer_update(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE);
+}
+
+static int mixer_setup_scale(const struct exynos_drm_plane *plane,
+		unsigned int *x_ratio, unsigned int *y_ratio)
+{
+	if (plane->crtc_width != plane->src_width) {
+		if (plane->crtc_width == 2 * plane->src_width)
+			*x_ratio = 1;
+		else
+			goto fail;
+	}
+
+	if (plane->crtc_height != plane->src_height) {
+		if (plane->crtc_height == 2 * plane->src_height)
+			*y_ratio = 1;
+		else
+			goto fail;
+	}
+
+	return 0;
+
+fail:
+	DRM_DEBUG_KMS("only 2x width/height scaling of plane supported\n");
+	return -ENOTSUPP;
+}
+
+static void mixer_graph_buffer(struct mixer_context *ctx, unsigned int win)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	struct exynos_drm_plane *plane;
+	unsigned int x_ratio = 0, y_ratio = 0;
+	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
+	dma_addr_t dma_addr;
+	unsigned int fmt;
+	u32 val;
+
+	plane = &ctx->planes[win];
+
+	switch (plane->pixel_format) {
+	case DRM_FORMAT_XRGB4444:
+		fmt = MXR_FORMAT_ARGB4444;
+		break;
+
+	case DRM_FORMAT_XRGB1555:
+		fmt = MXR_FORMAT_ARGB1555;
+		break;
+
+	case DRM_FORMAT_RGB565:
+		fmt = MXR_FORMAT_RGB565;
+		break;
+
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		fmt = MXR_FORMAT_ARGB8888;
+		break;
+
+	default:
+		DRM_DEBUG_KMS("pixelformat unsupported by mixer\n");
+		return;
+	}
+
+	/* check if mixer supports requested scaling setup */
+	if (mixer_setup_scale(plane, &x_ratio, &y_ratio))
+		return;
+
+	dst_x_offset = plane->crtc_x;
+	dst_y_offset = plane->crtc_y;
+
+	/* converting dma address base and source offset */
+	dma_addr = plane->dma_addr[0]
+		+ (plane->src_x * plane->bpp >> 3)
+		+ (plane->src_y * plane->pitch);
+	src_x_offset = 0;
+	src_y_offset = 0;
+
+	if (plane->scan_flag & DRM_MODE_FLAG_INTERLACE)
+		ctx->interlace = true;
+	else
+		ctx->interlace = false;
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	/* setup format */
+	mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win),
+		MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
+
+	/* setup geometry */
+	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win),
+			plane->pitch / (plane->bpp >> 3));
+
+	/* setup display size */
+	if (ctx->mxr_ver == MXR_VER_128_0_0_184 &&
+		win == MIXER_DEFAULT_WIN) {
+		val  = MXR_MXR_RES_HEIGHT(plane->mode_height);
+		val |= MXR_MXR_RES_WIDTH(plane->mode_width);
+		mixer_reg_write(res, MXR_RESOLUTION, val);
+	}
+
+	val  = MXR_GRP_WH_WIDTH(plane->src_width);
+	val |= MXR_GRP_WH_HEIGHT(plane->src_height);
+	val |= MXR_GRP_WH_H_SCALE(x_ratio);
+	val |= MXR_GRP_WH_V_SCALE(y_ratio);
+	mixer_reg_write(res, MXR_GRAPHIC_WH(win), val);
+
+	/* setup offsets in source image */
+	val  = MXR_GRP_SXY_SX(src_x_offset);
+	val |= MXR_GRP_SXY_SY(src_y_offset);
+	mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val);
+
+	/* setup offsets in display image */
+	val  = MXR_GRP_DXY_DX(dst_x_offset);
+	val |= MXR_GRP_DXY_DY(dst_y_offset);
+	mixer_reg_write(res, MXR_GRAPHIC_DXY(win), val);
+
+	/* set buffer address to mixer */
+	mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr);
+
+	mixer_cfg_scan(ctx, plane->mode_height);
+	mixer_cfg_rgb_fmt(ctx, plane->mode_height);
+	mixer_cfg_layer(ctx, win, true);
+
+	/* layer update mandatory for mixer 16.0.33.0 */
+	if (ctx->mxr_ver == MXR_VER_16_0_33_0 ||
+		ctx->mxr_ver == MXR_VER_128_0_0_184)
+		mixer_layer_update(ctx);
+
+	mixer_run(ctx);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+
+	mixer_regs_dump(ctx);
+}
+
+static void vp_win_reset(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	int tries = 100;
+
+	vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING);
+	for (tries = 100; tries; --tries) {
+		/* waiting until VP_SRESET_PROCESSING is 0 */
+		if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
+			break;
+		usleep_range(10000, 12000);
+	}
+	WARN(tries == 0, "failed to reset Video Processor\n");
+}
+
+static void mixer_win_reset(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	u32 val; /* value stored to register */
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK);
+
+	/* set output in RGB888 mode */
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK);
+
+	/* 16 beat burst in DMA */
+	mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST,
+		MXR_STATUS_BURST_MASK);
+
+	/* setting default layer priority: layer1 > layer0 > video
+	 * because typical usage scenario would be
+	 * layer1 - OSD
+	 * layer0 - framebuffer
+	 * video - video overlay
+	 */
+	val = MXR_LAYER_CFG_GRP1_VAL(3);
+	val |= MXR_LAYER_CFG_GRP0_VAL(2);
+	if (ctx->vp_enabled)
+		val |= MXR_LAYER_CFG_VP_VAL(1);
+	mixer_reg_write(res, MXR_LAYER_CFG, val);
+
+	/* setting background color */
+	mixer_reg_write(res, MXR_BG_COLOR0, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR1, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR2, 0x008080);
+
+	/* setting graphical layers */
+	val  = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */
+	val |= MXR_GRP_CFG_WIN_BLEND_EN;
+	val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */
+
+	/* Don't blend layer 0 onto the mixer background */
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
+
+	/* Blend layer 1 into layer 0 */
+	val |= MXR_GRP_CFG_BLEND_PRE_MUL;
+	val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
+
+	/* setting video layers */
+	val = MXR_GRP_CFG_ALPHA_VAL(0);
+	mixer_reg_write(res, MXR_VIDEO_CFG, val);
+
+	if (ctx->vp_enabled) {
+		/* configuration of Video Processor Registers */
+		vp_win_reset(ctx);
+		vp_default_filter(res);
+	}
+
+	/* disable all layers */
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
+	if (ctx->vp_enabled)
+		mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+}
+
+static irqreturn_t mixer_irq_handler(int irq, void *arg)
+{
+	struct mixer_context *ctx = arg;
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val, base, shadow;
+
+	spin_lock(&res->reg_slock);
+
+	/* read interrupt status for handling and clearing flags for VSYNC */
+	val = mixer_reg_read(res, MXR_INT_STATUS);
+
+	/* handling VSYNC */
+	if (val & MXR_INT_STATUS_VSYNC) {
+		/* interlace scan need to check shadow register */
+		if (ctx->interlace) {
+			base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0));
+			shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
+			if (base != shadow)
+				goto out;
+
+			base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1));
+			shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
+			if (base != shadow)
+				goto out;
+		}
+
+		drm_handle_vblank(ctx->drm_dev, ctx->pipe);
+		exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
+
+		/* set wait vsync event to zero and wake up queue. */
+		if (atomic_read(&ctx->wait_vsync_event)) {
+			atomic_set(&ctx->wait_vsync_event, 0);
+			wake_up(&ctx->wait_vsync_queue);
+		}
+	}
+
+out:
+	/* clear interrupts */
+	if (~val & MXR_INT_EN_VSYNC) {
+		/* vsync interrupt use different bit for read and clear */
+		val &= ~MXR_INT_EN_VSYNC;
+		val |= MXR_INT_CLEAR_VSYNC;
+	}
+	mixer_reg_write(res, MXR_INT_STATUS, val);
+
+	spin_unlock(&res->reg_slock);
+
+	return IRQ_HANDLED;
+}
+
+static int mixer_resources_init(struct mixer_context *mixer_ctx)
+{
+	struct device *dev = &mixer_ctx->pdev->dev;
+	struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
+	struct resource *res;
+	int ret;
+
+	spin_lock_init(&mixer_res->reg_slock);
+
+	mixer_res->mixer = devm_clk_get(dev, "mixer");
+	if (IS_ERR(mixer_res->mixer)) {
+		dev_err(dev, "failed to get clock 'mixer'\n");
+		return -ENODEV;
+	}
+
+	mixer_res->hdmi = devm_clk_get(dev, "hdmi");
+	if (IS_ERR(mixer_res->hdmi)) {
+		dev_err(dev, "failed to get clock 'hdmi'\n");
+		return PTR_ERR(mixer_res->hdmi);
+	}
+
+	mixer_res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi");
+	if (IS_ERR(mixer_res->sclk_hdmi)) {
+		dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
+		return -ENODEV;
+	}
+	res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(dev, "get memory resource failed.\n");
+		return -ENXIO;
+	}
+
+	mixer_res->mixer_regs = devm_ioremap(dev, res->start,
+							resource_size(res));
+	if (mixer_res->mixer_regs == NULL) {
+		dev_err(dev, "register mapping failed.\n");
+		return -ENXIO;
+	}
+
+	res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_IRQ, 0);
+	if (res == NULL) {
+		dev_err(dev, "get interrupt resource failed.\n");
+		return -ENXIO;
+	}
+
+	ret = devm_request_irq(dev, res->start, mixer_irq_handler,
+						0, "drm_mixer", mixer_ctx);
+	if (ret) {
+		dev_err(dev, "request interrupt failed.\n");
+		return ret;
+	}
+	mixer_res->irq = res->start;
+
+	return 0;
+}
+
+static int vp_resources_init(struct mixer_context *mixer_ctx)
+{
+	struct device *dev = &mixer_ctx->pdev->dev;
+	struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
+	struct resource *res;
+
+	mixer_res->vp = devm_clk_get(dev, "vp");
+	if (IS_ERR(mixer_res->vp)) {
+		dev_err(dev, "failed to get clock 'vp'\n");
+		return -ENODEV;
+	}
+
+	if (mixer_ctx->has_sclk) {
+		mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer");
+		if (IS_ERR(mixer_res->sclk_mixer)) {
+			dev_err(dev, "failed to get clock 'sclk_mixer'\n");
+			return -ENODEV;
+		}
+		mixer_res->mout_mixer = devm_clk_get(dev, "mout_mixer");
+		if (IS_ERR(mixer_res->mout_mixer)) {
+			dev_err(dev, "failed to get clock 'mout_mixer'\n");
+			return -ENODEV;
+		}
+
+		if (mixer_res->sclk_hdmi && mixer_res->mout_mixer)
+			clk_set_parent(mixer_res->mout_mixer,
+				       mixer_res->sclk_hdmi);
+	}
+
+	res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 1);
+	if (res == NULL) {
+		dev_err(dev, "get memory resource failed.\n");
+		return -ENXIO;
+	}
+
+	mixer_res->vp_regs = devm_ioremap(dev, res->start,
+							resource_size(res));
+	if (mixer_res->vp_regs == NULL) {
+		dev_err(dev, "register mapping failed.\n");
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static int mixer_initialize(struct mixer_context *mixer_ctx,
+			struct drm_device *drm_dev)
+{
+	int ret;
+	struct exynos_drm_private *priv;
+	priv = drm_dev->dev_private;
+
+	mixer_ctx->drm_dev = drm_dev;
+	mixer_ctx->pipe = priv->pipe++;
+
+	/* acquire resources: regs, irqs, clocks */
+	ret = mixer_resources_init(mixer_ctx);
+	if (ret) {
+		DRM_ERROR("mixer_resources_init failed ret=%d\n", ret);
+		return ret;
+	}
+
+	if (mixer_ctx->vp_enabled) {
+		/* acquire vp resources: regs, irqs, clocks */
+		ret = vp_resources_init(mixer_ctx);
+		if (ret) {
+			DRM_ERROR("vp_resources_init failed ret=%d\n", ret);
+			return ret;
+		}
+	}
+
+	if (!is_drm_iommu_supported(mixer_ctx->drm_dev))
+		return 0;
+
+	return drm_iommu_attach_device(mixer_ctx->drm_dev, mixer_ctx->dev);
+}
+
+static void mixer_ctx_remove(struct mixer_context *mixer_ctx)
+{
+	if (is_drm_iommu_supported(mixer_ctx->drm_dev))
+		drm_iommu_detach_device(mixer_ctx->drm_dev, mixer_ctx->dev);
+}
+
+static int mixer_enable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct mixer_context *mixer_ctx = crtc->ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+
+	if (!mixer_ctx->powered) {
+		mixer_ctx->int_en |= MXR_INT_EN_VSYNC;
+		return 0;
+	}
+
+	/* enable vsync interrupt */
+	mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC,
+			MXR_INT_EN_VSYNC);
+
+	return 0;
+}
+
+static void mixer_disable_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct mixer_context *mixer_ctx = crtc->ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+
+	/* disable vsync interrupt */
+	mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC);
+}
+
+static void mixer_win_commit(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct mixer_context *mixer_ctx = crtc->ctx;
+
+	DRM_DEBUG_KMS("win: %d\n", win);
+
+	mutex_lock(&mixer_ctx->mixer_mutex);
+	if (!mixer_ctx->powered) {
+		mutex_unlock(&mixer_ctx->mixer_mutex);
+		return;
+	}
+	mutex_unlock(&mixer_ctx->mixer_mutex);
+
+	if (win > 1 && mixer_ctx->vp_enabled)
+		vp_video_buffer(mixer_ctx, win);
+	else
+		mixer_graph_buffer(mixer_ctx, win);
+
+	mixer_ctx->planes[win].enabled = true;
+}
+
+static void mixer_win_disable(struct exynos_drm_crtc *crtc, unsigned int win)
+{
+	struct mixer_context *mixer_ctx = crtc->ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+	unsigned long flags;
+
+	DRM_DEBUG_KMS("win: %d\n", win);
+
+	mutex_lock(&mixer_ctx->mixer_mutex);
+	if (!mixer_ctx->powered) {
+		mutex_unlock(&mixer_ctx->mixer_mutex);
+		mixer_ctx->planes[win].resume = false;
+		return;
+	}
+	mutex_unlock(&mixer_ctx->mixer_mutex);
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(mixer_ctx, false);
+
+	mixer_cfg_layer(mixer_ctx, win, false);
+
+	mixer_vsync_set_update(mixer_ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+
+	mixer_ctx->planes[win].enabled = false;
+}
+
+static void mixer_wait_for_vblank(struct exynos_drm_crtc *crtc)
+{
+	struct mixer_context *mixer_ctx = crtc->ctx;
+	int err;
+
+	mutex_lock(&mixer_ctx->mixer_mutex);
+	if (!mixer_ctx->powered) {
+		mutex_unlock(&mixer_ctx->mixer_mutex);
+		return;
+	}
+	mutex_unlock(&mixer_ctx->mixer_mutex);
+
+	err = drm_vblank_get(mixer_ctx->drm_dev, mixer_ctx->pipe);
+	if (err < 0) {
+		DRM_DEBUG_KMS("failed to acquire vblank counter\n");
+		return;
+	}
+
+	atomic_set(&mixer_ctx->wait_vsync_event, 1);
+
+	/*
+	 * wait for MIXER to signal VSYNC interrupt or return after
+	 * timeout which is set to 50ms (refresh rate of 20).
+	 */
+	if (!wait_event_timeout(mixer_ctx->wait_vsync_queue,
+				!atomic_read(&mixer_ctx->wait_vsync_event),
+				HZ/20))
+		DRM_DEBUG_KMS("vblank wait timed out.\n");
+
+	drm_vblank_put(mixer_ctx->drm_dev, mixer_ctx->pipe);
+}
+
+static void mixer_window_suspend(struct mixer_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < MIXER_WIN_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->resume = plane->enabled;
+		mixer_win_disable(ctx->crtc, i);
+	}
+	mixer_wait_for_vblank(ctx->crtc);
+}
+
+static void mixer_window_resume(struct mixer_context *ctx)
+{
+	struct exynos_drm_plane *plane;
+	int i;
+
+	for (i = 0; i < MIXER_WIN_NR; i++) {
+		plane = &ctx->planes[i];
+		plane->enabled = plane->resume;
+		plane->resume = false;
+		if (plane->enabled)
+			mixer_win_commit(ctx->crtc, i);
+	}
+}
+
+static void mixer_poweron(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	mutex_lock(&ctx->mixer_mutex);
+	if (ctx->powered) {
+		mutex_unlock(&ctx->mixer_mutex);
+		return;
+	}
+
+	mutex_unlock(&ctx->mixer_mutex);
+
+	pm_runtime_get_sync(ctx->dev);
+
+	clk_prepare_enable(res->mixer);
+	clk_prepare_enable(res->hdmi);
+	if (ctx->vp_enabled) {
+		clk_prepare_enable(res->vp);
+		if (ctx->has_sclk)
+			clk_prepare_enable(res->sclk_mixer);
+	}
+
+	mutex_lock(&ctx->mixer_mutex);
+	ctx->powered = true;
+	mutex_unlock(&ctx->mixer_mutex);
+
+	mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_SOFT_RESET);
+
+	mixer_reg_write(res, MXR_INT_EN, ctx->int_en);
+	mixer_win_reset(ctx);
+
+	mixer_window_resume(ctx);
+}
+
+static void mixer_poweroff(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	mutex_lock(&ctx->mixer_mutex);
+	if (!ctx->powered) {
+		mutex_unlock(&ctx->mixer_mutex);
+		return;
+	}
+	mutex_unlock(&ctx->mixer_mutex);
+
+	mixer_stop(ctx);
+	mixer_regs_dump(ctx);
+	mixer_window_suspend(ctx);
+
+	ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
+
+	mutex_lock(&ctx->mixer_mutex);
+	ctx->powered = false;
+	mutex_unlock(&ctx->mixer_mutex);
+
+	clk_disable_unprepare(res->hdmi);
+	clk_disable_unprepare(res->mixer);
+	if (ctx->vp_enabled) {
+		clk_disable_unprepare(res->vp);
+		if (ctx->has_sclk)
+			clk_disable_unprepare(res->sclk_mixer);
+	}
+
+	pm_runtime_put_sync(ctx->dev);
+}
+
+static void mixer_dpms(struct exynos_drm_crtc *crtc, int mode)
+{
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		mixer_poweron(crtc->ctx);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		mixer_poweroff(crtc->ctx);
+		break;
+	default:
+		DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+		break;
+	}
+}
+
+/* Only valid for Mixer version 16.0.33.0 */
+int mixer_check_mode(struct drm_display_mode *mode)
+{
+	u32 w, h;
+
+	w = mode->hdisplay;
+	h = mode->vdisplay;
+
+	DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d\n",
+		mode->hdisplay, mode->vdisplay, mode->vrefresh,
+		(mode->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0);
+
+	if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||
+		(w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||
+		(w >= 1664 && w <= 1920 && h >= 936 && h <= 1080))
+		return 0;
+
+	return -EINVAL;
+}
+
+static const struct exynos_drm_crtc_ops mixer_crtc_ops = {
+	.dpms			= mixer_dpms,
+	.enable_vblank		= mixer_enable_vblank,
+	.disable_vblank		= mixer_disable_vblank,
+	.wait_for_vblank	= mixer_wait_for_vblank,
+	.win_commit		= mixer_win_commit,
+	.win_disable		= mixer_win_disable,
+};
+
+static struct mixer_drv_data exynos5420_mxr_drv_data = {
+	.version = MXR_VER_128_0_0_184,
+	.is_vp_enabled = 0,
+};
+
+static struct mixer_drv_data exynos5250_mxr_drv_data = {
+	.version = MXR_VER_16_0_33_0,
+	.is_vp_enabled = 0,
+};
+
+static struct mixer_drv_data exynos4212_mxr_drv_data = {
+	.version = MXR_VER_0_0_0_16,
+	.is_vp_enabled = 1,
+};
+
+static struct mixer_drv_data exynos4210_mxr_drv_data = {
+	.version = MXR_VER_0_0_0_16,
+	.is_vp_enabled = 1,
+	.has_sclk = 1,
+};
+
+static const struct platform_device_id mixer_driver_types[] = {
+	{
+		.name		= "s5p-mixer",
+		.driver_data	= (unsigned long)&exynos4210_mxr_drv_data,
+	}, {
+		.name		= "exynos5-mixer",
+		.driver_data	= (unsigned long)&exynos5250_mxr_drv_data,
+	}, {
+		/* end node */
+	}
+};
+
+static struct of_device_id mixer_match_types[] = {
+	{
+		.compatible = "samsung,exynos4210-mixer",
+		.data	= &exynos4210_mxr_drv_data,
+	}, {
+		.compatible = "samsung,exynos4212-mixer",
+		.data	= &exynos4212_mxr_drv_data,
+	}, {
+		.compatible = "samsung,exynos5-mixer",
+		.data	= &exynos5250_mxr_drv_data,
+	}, {
+		.compatible = "samsung,exynos5250-mixer",
+		.data	= &exynos5250_mxr_drv_data,
+	}, {
+		.compatible = "samsung,exynos5420-mixer",
+		.data	= &exynos5420_mxr_drv_data,
+	}, {
+		/* end node */
+	}
+};
+MODULE_DEVICE_TABLE(of, mixer_match_types);
+
+static int mixer_bind(struct device *dev, struct device *manager, void *data)
+{
+	struct mixer_context *ctx = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	unsigned int zpos;
+	int ret;
+
+	ret = mixer_initialize(ctx, drm_dev);
+	if (ret)
+		return ret;
+
+	for (zpos = 0; zpos < MIXER_WIN_NR; zpos++) {
+		type = (zpos == MIXER_DEFAULT_WIN) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		ret = exynos_plane_init(drm_dev, &ctx->planes[zpos],
+					1 << ctx->pipe, type, zpos);
+		if (ret)
+			return ret;
+	}
+
+	exynos_plane = &ctx->planes[MIXER_DEFAULT_WIN];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_HDMI,
+					   &mixer_crtc_ops, ctx);
+	if (IS_ERR(ctx->crtc)) {
+		mixer_ctx_remove(ctx);
+		ret = PTR_ERR(ctx->crtc);
+		goto free_ctx;
+	}
+
+	return 0;
+
+free_ctx:
+	devm_kfree(dev, ctx);
+	return ret;
+}
+
+static void mixer_unbind(struct device *dev, struct device *master, void *data)
+{
+	struct mixer_context *ctx = dev_get_drvdata(dev);
+
+	mixer_ctx_remove(ctx);
+}
+
+static const struct component_ops mixer_component_ops = {
+	.bind	= mixer_bind,
+	.unbind	= mixer_unbind,
+};
+
+static int mixer_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mixer_drv_data *drv;
+	struct mixer_context *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx) {
+		DRM_ERROR("failed to alloc mixer context.\n");
+		return -ENOMEM;
+	}
+
+	mutex_init(&ctx->mixer_mutex);
+
+	if (dev->of_node) {
+		const struct of_device_id *match;
+
+		match = of_match_node(mixer_match_types, dev->of_node);
+		drv = (struct mixer_drv_data *)match->data;
+	} else {
+		drv = (struct mixer_drv_data *)
+			platform_get_device_id(pdev)->driver_data;
+	}
+
+	ctx->pdev = pdev;
+	ctx->dev = dev;
+	ctx->vp_enabled = drv->is_vp_enabled;
+	ctx->has_sclk = drv->has_sclk;
+	ctx->mxr_ver = drv->version;
+	init_waitqueue_head(&ctx->wait_vsync_queue);
+	atomic_set(&ctx->wait_vsync_event, 0);
+
+	platform_set_drvdata(pdev, ctx);
+
+	ret = exynos_drm_component_add(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC,
+					EXYNOS_DISPLAY_TYPE_HDMI);
+	if (ret)
+		return ret;
+
+	ret = component_add(&pdev->dev, &mixer_component_ops);
+	if (ret) {
+		exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+		return ret;
+	}
+
+	pm_runtime_enable(dev);
+
+	return ret;
+}
+
+static int mixer_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	component_del(&pdev->dev, &mixer_component_ops);
+	exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC);
+
+	return 0;
+}
+
+struct platform_driver mixer_driver = {
+	.driver = {
+		.name = "exynos-mixer",
+		.owner = THIS_MODULE,
+		.of_match_table = mixer_match_types,
+	},
+	.probe = mixer_probe,
+	.remove = mixer_remove,
+	.id_table	= mixer_driver_types,
+};
diff --git a/kernel/drivers/gpu/drm/exynos/exynos_mixer.h b/kernel/drivers/gpu/drm/exynos/exynos_mixer.h
new file mode 100644
index 000000000..3811e417f
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/exynos_mixer.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _EXYNOS_MIXER_H_
+#define _EXYNOS_MIXER_H_
+
+/* This function returns 0 if the given timing is valid for the mixer */
+int mixer_check_mode(struct drm_display_mode *mode);
+
+#endif
diff --git a/kernel/drivers/gpu/drm/exynos/regs-fimc.h b/kernel/drivers/gpu/drm/exynos/regs-fimc.h
new file mode 100644
index 000000000..30496134a
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-fimc.h
@@ -0,0 +1,668 @@
+/* drivers/gpu/drm/exynos/regs-fimc.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Register definition file for Samsung Camera Interface (FIMC) driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef EXYNOS_REGS_FIMC_H
+#define EXYNOS_REGS_FIMC_H
+
+/*
+ * Register part
+*/
+/* Input source format */
+#define EXYNOS_CISRCFMT		(0x00)
+/* Window offset */
+#define EXYNOS_CIWDOFST		(0x04)
+/* Global control */
+#define EXYNOS_CIGCTRL		(0x08)
+/* Window offset 2 */
+#define EXYNOS_CIWDOFST2	(0x14)
+/* Y 1st frame start address for output DMA */
+#define EXYNOS_CIOYSA1		(0x18)
+/* Y 2nd frame start address for output DMA */
+#define EXYNOS_CIOYSA2		(0x1c)
+/* Y 3rd frame start address for output DMA */
+#define EXYNOS_CIOYSA3		(0x20)
+/* Y 4th frame start address for output DMA */
+#define EXYNOS_CIOYSA4		(0x24)
+/* Cb 1st frame start address for output DMA */
+#define EXYNOS_CIOCBSA1		(0x28)
+/* Cb 2nd frame start address for output DMA */
+#define EXYNOS_CIOCBSA2		(0x2c)
+/* Cb 3rd frame start address for output DMA */
+#define EXYNOS_CIOCBSA3		(0x30)
+/* Cb 4th frame start address for output DMA */
+#define EXYNOS_CIOCBSA4		(0x34)
+/* Cr 1st frame start address for output DMA */
+#define EXYNOS_CIOCRSA1		(0x38)
+/* Cr 2nd frame start address for output DMA */
+#define EXYNOS_CIOCRSA2		(0x3c)
+/* Cr 3rd frame start address for output DMA */
+#define EXYNOS_CIOCRSA3		(0x40)
+/* Cr 4th frame start address for output DMA */
+#define EXYNOS_CIOCRSA4		(0x44)
+/* Target image format */
+#define EXYNOS_CITRGFMT		(0x48)
+/* Output DMA control */
+#define EXYNOS_CIOCTRL		(0x4c)
+/* Pre-scaler control 1 */
+#define EXYNOS_CISCPRERATIO	(0x50)
+/* Pre-scaler control 2 */
+#define EXYNOS_CISCPREDST		(0x54)
+/* Main scaler control */
+#define EXYNOS_CISCCTRL		(0x58)
+/* Target area */
+#define EXYNOS_CITAREA		(0x5c)
+/* Status */
+#define EXYNOS_CISTATUS		(0x64)
+/* Status2 */
+#define EXYNOS_CISTATUS2		(0x68)
+/* Image capture enable command */
+#define EXYNOS_CIIMGCPT		(0xc0)
+/* Capture sequence */
+#define EXYNOS_CICPTSEQ		(0xc4)
+/* Image effects */
+#define EXYNOS_CIIMGEFF		(0xd0)
+/* Y frame start address for input DMA */
+#define EXYNOS_CIIYSA0		(0xd4)
+/* Cb frame start address for input DMA */
+#define EXYNOS_CIICBSA0		(0xd8)
+/* Cr frame start address for input DMA */
+#define EXYNOS_CIICRSA0		(0xdc)
+/* Input DMA Y Line Skip */
+#define EXYNOS_CIILINESKIP_Y	(0xec)
+/* Input DMA Cb Line Skip */
+#define EXYNOS_CIILINESKIP_CB	(0xf0)
+/* Input DMA Cr Line Skip */
+#define EXYNOS_CIILINESKIP_CR	(0xf4)
+/* Real input DMA image size */
+#define EXYNOS_CIREAL_ISIZE	(0xf8)
+/* Input DMA control */
+#define EXYNOS_MSCTRL		(0xfc)
+/* Y frame start address for input DMA */
+#define EXYNOS_CIIYSA1		(0x144)
+/* Cb frame start address for input DMA */
+#define EXYNOS_CIICBSA1		(0x148)
+/* Cr frame start address for input DMA */
+#define EXYNOS_CIICRSA1		(0x14c)
+/* Output DMA Y offset */
+#define EXYNOS_CIOYOFF		(0x168)
+/* Output DMA CB offset */
+#define EXYNOS_CIOCBOFF		(0x16c)
+/* Output DMA CR offset */
+#define EXYNOS_CIOCROFF		(0x170)
+/* Input DMA Y offset */
+#define EXYNOS_CIIYOFF		(0x174)
+/* Input DMA CB offset */
+#define EXYNOS_CIICBOFF		(0x178)
+/* Input DMA CR offset */
+#define EXYNOS_CIICROFF		(0x17c)
+/* Input DMA original image size */
+#define EXYNOS_ORGISIZE		(0x180)
+/* Output DMA original image size */
+#define EXYNOS_ORGOSIZE		(0x184)
+/* Real output DMA image size */
+#define EXYNOS_CIEXTEN		(0x188)
+/* DMA parameter */
+#define EXYNOS_CIDMAPARAM		(0x18c)
+/* MIPI CSI image format */
+#define EXYNOS_CSIIMGFMT		(0x194)
+/* FIMC Clock Source Select */
+#define EXYNOS_MISC_FIMC		(0x198)
+
+/* Add for FIMC v5.1 */
+/* Output Frame Buffer Sequence */
+#define EXYNOS_CIFCNTSEQ		(0x1fc)
+/* Y 5th frame start address for output DMA */
+#define EXYNOS_CIOYSA5		(0x200)
+/* Y 6th frame start address for output DMA */
+#define EXYNOS_CIOYSA6		(0x204)
+/* Y 7th frame start address for output DMA */
+#define EXYNOS_CIOYSA7		(0x208)
+/* Y 8th frame start address for output DMA */
+#define EXYNOS_CIOYSA8		(0x20c)
+/* Y 9th frame start address for output DMA */
+#define EXYNOS_CIOYSA9		(0x210)
+/* Y 10th frame start address for output DMA */
+#define EXYNOS_CIOYSA10		(0x214)
+/* Y 11th frame start address for output DMA */
+#define EXYNOS_CIOYSA11		(0x218)
+/* Y 12th frame start address for output DMA */
+#define EXYNOS_CIOYSA12		(0x21c)
+/* Y 13th frame start address for output DMA */
+#define EXYNOS_CIOYSA13		(0x220)
+/* Y 14th frame start address for output DMA */
+#define EXYNOS_CIOYSA14		(0x224)
+/* Y 15th frame start address for output DMA */
+#define EXYNOS_CIOYSA15		(0x228)
+/* Y 16th frame start address for output DMA */
+#define EXYNOS_CIOYSA16		(0x22c)
+/* Y 17th frame start address for output DMA */
+#define EXYNOS_CIOYSA17		(0x230)
+/* Y 18th frame start address for output DMA */
+#define EXYNOS_CIOYSA18		(0x234)
+/* Y 19th frame start address for output DMA */
+#define EXYNOS_CIOYSA19		(0x238)
+/* Y 20th frame start address for output DMA */
+#define EXYNOS_CIOYSA20		(0x23c)
+/* Y 21th frame start address for output DMA */
+#define EXYNOS_CIOYSA21		(0x240)
+/* Y 22th frame start address for output DMA */
+#define EXYNOS_CIOYSA22		(0x244)
+/* Y 23th frame start address for output DMA */
+#define EXYNOS_CIOYSA23		(0x248)
+/* Y 24th frame start address for output DMA */
+#define EXYNOS_CIOYSA24		(0x24c)
+/* Y 25th frame start address for output DMA */
+#define EXYNOS_CIOYSA25		(0x250)
+/* Y 26th frame start address for output DMA */
+#define EXYNOS_CIOYSA26		(0x254)
+/* Y 27th frame start address for output DMA */
+#define EXYNOS_CIOYSA27		(0x258)
+/* Y 28th frame start address for output DMA */
+#define EXYNOS_CIOYSA28		(0x25c)
+/* Y 29th frame start address for output DMA */
+#define EXYNOS_CIOYSA29		(0x260)
+/* Y 30th frame start address for output DMA */
+#define EXYNOS_CIOYSA30		(0x264)
+/* Y 31th frame start address for output DMA */
+#define EXYNOS_CIOYSA31		(0x268)
+/* Y 32th frame start address for output DMA */
+#define EXYNOS_CIOYSA32		(0x26c)
+
+/* CB 5th frame start address for output DMA */
+#define EXYNOS_CIOCBSA5		(0x270)
+/* CB 6th frame start address for output DMA */
+#define EXYNOS_CIOCBSA6		(0x274)
+/* CB 7th frame start address for output DMA */
+#define EXYNOS_CIOCBSA7		(0x278)
+/* CB 8th frame start address for output DMA */
+#define EXYNOS_CIOCBSA8		(0x27c)
+/* CB 9th frame start address for output DMA */
+#define EXYNOS_CIOCBSA9		(0x280)
+/* CB 10th frame start address for output DMA */
+#define EXYNOS_CIOCBSA10		(0x284)
+/* CB 11th frame start address for output DMA */
+#define EXYNOS_CIOCBSA11		(0x288)
+/* CB 12th frame start address for output DMA */
+#define EXYNOS_CIOCBSA12		(0x28c)
+/* CB 13th frame start address for output DMA */
+#define EXYNOS_CIOCBSA13		(0x290)
+/* CB 14th frame start address for output DMA */
+#define EXYNOS_CIOCBSA14		(0x294)
+/* CB 15th frame start address for output DMA */
+#define EXYNOS_CIOCBSA15		(0x298)
+/* CB 16th frame start address for output DMA */
+#define EXYNOS_CIOCBSA16		(0x29c)
+/* CB 17th frame start address for output DMA */
+#define EXYNOS_CIOCBSA17		(0x2a0)
+/* CB 18th frame start address for output DMA */
+#define EXYNOS_CIOCBSA18		(0x2a4)
+/* CB 19th frame start address for output DMA */
+#define EXYNOS_CIOCBSA19		(0x2a8)
+/* CB 20th frame start address for output DMA */
+#define EXYNOS_CIOCBSA20		(0x2ac)
+/* CB 21th frame start address for output DMA */
+#define EXYNOS_CIOCBSA21		(0x2b0)
+/* CB 22th frame start address for output DMA */
+#define EXYNOS_CIOCBSA22		(0x2b4)
+/* CB 23th frame start address for output DMA */
+#define EXYNOS_CIOCBSA23		(0x2b8)
+/* CB 24th frame start address for output DMA */
+#define EXYNOS_CIOCBSA24		(0x2bc)
+/* CB 25th frame start address for output DMA */
+#define EXYNOS_CIOCBSA25		(0x2c0)
+/* CB 26th frame start address for output DMA */
+#define EXYNOS_CIOCBSA26		(0x2c4)
+/* CB 27th frame start address for output DMA */
+#define EXYNOS_CIOCBSA27		(0x2c8)
+/* CB 28th frame start address for output DMA */
+#define EXYNOS_CIOCBSA28		(0x2cc)
+/* CB 29th frame start address for output DMA */
+#define EXYNOS_CIOCBSA29		(0x2d0)
+/* CB 30th frame start address for output DMA */
+#define EXYNOS_CIOCBSA30		(0x2d4)
+/* CB 31th frame start address for output DMA */
+#define EXYNOS_CIOCBSA31		(0x2d8)
+/* CB 32th frame start address for output DMA */
+#define EXYNOS_CIOCBSA32		(0x2dc)
+
+/* CR 5th frame start address for output DMA */
+#define EXYNOS_CIOCRSA5		(0x2e0)
+/* CR 6th frame start address for output DMA */
+#define EXYNOS_CIOCRSA6		(0x2e4)
+/* CR 7th frame start address for output DMA */
+#define EXYNOS_CIOCRSA7		(0x2e8)
+/* CR 8th frame start address for output DMA */
+#define EXYNOS_CIOCRSA8		(0x2ec)
+/* CR 9th frame start address for output DMA */
+#define EXYNOS_CIOCRSA9		(0x2f0)
+/* CR 10th frame start address for output DMA */
+#define EXYNOS_CIOCRSA10		(0x2f4)
+/* CR 11th frame start address for output DMA */
+#define EXYNOS_CIOCRSA11		(0x2f8)
+/* CR 12th frame start address for output DMA */
+#define EXYNOS_CIOCRSA12		(0x2fc)
+/* CR 13th frame start address for output DMA */
+#define EXYNOS_CIOCRSA13		(0x300)
+/* CR 14th frame start address for output DMA */
+#define EXYNOS_CIOCRSA14		(0x304)
+/* CR 15th frame start address for output DMA */
+#define EXYNOS_CIOCRSA15		(0x308)
+/* CR 16th frame start address for output DMA */
+#define EXYNOS_CIOCRSA16		(0x30c)
+/* CR 17th frame start address for output DMA */
+#define EXYNOS_CIOCRSA17		(0x310)
+/* CR 18th frame start address for output DMA */
+#define EXYNOS_CIOCRSA18		(0x314)
+/* CR 19th frame start address for output DMA */
+#define EXYNOS_CIOCRSA19		(0x318)
+/* CR 20th frame start address for output DMA */
+#define EXYNOS_CIOCRSA20		(0x31c)
+/* CR 21th frame start address for output DMA */
+#define EXYNOS_CIOCRSA21		(0x320)
+/* CR 22th frame start address for output DMA */
+#define EXYNOS_CIOCRSA22		(0x324)
+/* CR 23th frame start address for output DMA */
+#define EXYNOS_CIOCRSA23		(0x328)
+/* CR 24th frame start address for output DMA */
+#define EXYNOS_CIOCRSA24		(0x32c)
+/* CR 25th frame start address for output DMA */
+#define EXYNOS_CIOCRSA25		(0x330)
+/* CR 26th frame start address for output DMA */
+#define EXYNOS_CIOCRSA26		(0x334)
+/* CR 27th frame start address for output DMA */
+#define EXYNOS_CIOCRSA27		(0x338)
+/* CR 28th frame start address for output DMA */
+#define EXYNOS_CIOCRSA28		(0x33c)
+/* CR 29th frame start address for output DMA */
+#define EXYNOS_CIOCRSA29		(0x340)
+/* CR 30th frame start address for output DMA */
+#define EXYNOS_CIOCRSA30		(0x344)
+/* CR 31th frame start address for output DMA */
+#define EXYNOS_CIOCRSA31		(0x348)
+/* CR 32th frame start address for output DMA */
+#define EXYNOS_CIOCRSA32		(0x34c)
+
+/*
+ * Macro part
+*/
+/* frame start address 1 ~ 4, 5 ~ 32 */
+/* Number of Default PingPong Memory */
+#define DEF_PP		4
+#define EXYNOS_CIOYSA(__x)		\
+	(((__x) < DEF_PP) ?	\
+	 (EXYNOS_CIOYSA1  + (__x) * 4) : \
+	(EXYNOS_CIOYSA5  + ((__x) - DEF_PP) * 4))
+#define EXYNOS_CIOCBSA(__x)	\
+	(((__x) < DEF_PP) ?	\
+	 (EXYNOS_CIOCBSA1 + (__x) * 4) : \
+	(EXYNOS_CIOCBSA5 + ((__x) - DEF_PP) * 4))
+#define EXYNOS_CIOCRSA(__x)	\
+	(((__x) < DEF_PP) ?	\
+	 (EXYNOS_CIOCRSA1 + (__x) * 4) : \
+	(EXYNOS_CIOCRSA5 + ((__x) - DEF_PP) * 4))
+/* Number of Default PingPong Memory */
+#define DEF_IPP		1
+#define EXYNOS_CIIYSA(__x)		\
+	(((__x) < DEF_IPP) ?	\
+	 (EXYNOS_CIIYSA0) : (EXYNOS_CIIYSA1))
+#define EXYNOS_CIICBSA(__x)	\
+	(((__x) < DEF_IPP) ?	\
+	 (EXYNOS_CIICBSA0) : (EXYNOS_CIICBSA1))
+#define EXYNOS_CIICRSA(__x)	\
+	(((__x) < DEF_IPP) ?	\
+	 (EXYNOS_CIICRSA0) : (EXYNOS_CIICRSA1))
+
+#define EXYNOS_CISRCFMT_SOURCEHSIZE(x)		((x) << 16)
+#define EXYNOS_CISRCFMT_SOURCEVSIZE(x)		((x) << 0)
+
+#define EXYNOS_CIWDOFST_WINHOROFST(x)		((x) << 16)
+#define EXYNOS_CIWDOFST_WINVEROFST(x)		((x) << 0)
+
+#define EXYNOS_CIWDOFST2_WINHOROFST2(x)		((x) << 16)
+#define EXYNOS_CIWDOFST2_WINVEROFST2(x)		((x) << 0)
+
+#define EXYNOS_CITRGFMT_TARGETHSIZE(x)		(((x) & 0x1fff) << 16)
+#define EXYNOS_CITRGFMT_TARGETVSIZE(x)		(((x) & 0x1fff) << 0)
+
+#define EXYNOS_CISCPRERATIO_SHFACTOR(x)		((x) << 28)
+#define EXYNOS_CISCPRERATIO_PREHORRATIO(x)		((x) << 16)
+#define EXYNOS_CISCPRERATIO_PREVERRATIO(x)		((x) << 0)
+
+#define EXYNOS_CISCPREDST_PREDSTWIDTH(x)		((x) << 16)
+#define EXYNOS_CISCPREDST_PREDSTHEIGHT(x)		((x) << 0)
+
+#define EXYNOS_CISCCTRL_MAINHORRATIO(x)		((x) << 16)
+#define EXYNOS_CISCCTRL_MAINVERRATIO(x)		((x) << 0)
+
+#define EXYNOS_CITAREA_TARGET_AREA(x)		((x) << 0)
+
+#define EXYNOS_CISTATUS_GET_FRAME_COUNT(x)		(((x) >> 26) & 0x3)
+#define EXYNOS_CISTATUS_GET_FRAME_END(x)		(((x) >> 17) & 0x1)
+#define EXYNOS_CISTATUS_GET_LAST_CAPTURE_END(x)	(((x) >> 16) & 0x1)
+#define EXYNOS_CISTATUS_GET_LCD_STATUS(x)		(((x) >> 9) & 0x1)
+#define EXYNOS_CISTATUS_GET_ENVID_STATUS(x)	(((x) >> 8) & 0x1)
+
+#define EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(x)	(((x) >> 7) & 0x3f)
+#define EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(x)	((x) & 0x3f)
+
+#define EXYNOS_CIIMGEFF_FIN(x)			((x & 0x7) << 26)
+#define EXYNOS_CIIMGEFF_PAT_CB(x)			((x) << 13)
+#define EXYNOS_CIIMGEFF_PAT_CR(x)			((x) << 0)
+
+#define EXYNOS_CIILINESKIP(x)			(((x) & 0xf) << 24)
+
+#define EXYNOS_CIREAL_ISIZE_HEIGHT(x)		((x) << 16)
+#define EXYNOS_CIREAL_ISIZE_WIDTH(x)		((x) << 0)
+
+#define EXYNOS_MSCTRL_SUCCESSIVE_COUNT(x)		((x) << 24)
+#define EXYNOS_MSCTRL_GET_INDMA_STATUS(x)		((x) & 0x1)
+
+#define EXYNOS_CIOYOFF_VERTICAL(x)			((x) << 16)
+#define EXYNOS_CIOYOFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIOCBOFF_VERTICAL(x)		((x) << 16)
+#define EXYNOS_CIOCBOFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIOCROFF_VERTICAL(x)		((x) << 16)
+#define EXYNOS_CIOCROFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIIYOFF_VERTICAL(x)			((x) << 16)
+#define EXYNOS_CIIYOFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIICBOFF_VERTICAL(x)		((x) << 16)
+#define EXYNOS_CIICBOFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIICROFF_VERTICAL(x)		((x) << 16)
+#define EXYNOS_CIICROFF_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_ORGISIZE_VERTICAL(x)		((x) << 16)
+#define EXYNOS_ORGISIZE_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_ORGOSIZE_VERTICAL(x)		((x) << 16)
+#define EXYNOS_ORGOSIZE_HORIZONTAL(x)		((x) << 0)
+
+#define EXYNOS_CIEXTEN_TARGETH_EXT(x)		((((x) & 0x2000) >> 13) << 26)
+#define EXYNOS_CIEXTEN_TARGETV_EXT(x)		((((x) & 0x2000) >> 13) << 24)
+#define EXYNOS_CIEXTEN_MAINHORRATIO_EXT(x)		(((x) & 0x3F) << 10)
+#define EXYNOS_CIEXTEN_MAINVERRATIO_EXT(x)		((x) & 0x3F)
+
+/*
+ * Bit definition part
+*/
+/* Source format register */
+#define EXYNOS_CISRCFMT_ITU601_8BIT		(1 << 31)
+#define EXYNOS_CISRCFMT_ITU656_8BIT		(0 << 31)
+#define EXYNOS_CISRCFMT_ITU601_16BIT		(1 << 29)
+#define EXYNOS_CISRCFMT_ORDER422_YCBYCR		(0 << 14)
+#define EXYNOS_CISRCFMT_ORDER422_YCRYCB		(1 << 14)
+#define EXYNOS_CISRCFMT_ORDER422_CBYCRY		(2 << 14)
+#define EXYNOS_CISRCFMT_ORDER422_CRYCBY		(3 << 14)
+/* ITU601 16bit only */
+#define EXYNOS_CISRCFMT_ORDER422_Y4CBCRCBCR	(0 << 14)
+/* ITU601 16bit only */
+#define EXYNOS_CISRCFMT_ORDER422_Y4CRCBCRCB	(1 << 14)
+
+/* Window offset register */
+#define EXYNOS_CIWDOFST_WINOFSEN			(1 << 31)
+#define EXYNOS_CIWDOFST_CLROVFIY			(1 << 30)
+#define EXYNOS_CIWDOFST_CLROVRLB			(1 << 29)
+#define EXYNOS_CIWDOFST_WINHOROFST_MASK		(0x7ff << 16)
+#define EXYNOS_CIWDOFST_CLROVFICB			(1 << 15)
+#define EXYNOS_CIWDOFST_CLROVFICR			(1 << 14)
+#define EXYNOS_CIWDOFST_WINVEROFST_MASK		(0xfff << 0)
+
+/* Global control register */
+#define EXYNOS_CIGCTRL_SWRST			(1 << 31)
+#define EXYNOS_CIGCTRL_CAMRST_A			(1 << 30)
+#define EXYNOS_CIGCTRL_SELCAM_ITU_B		(0 << 29)
+#define EXYNOS_CIGCTRL_SELCAM_ITU_A		(1 << 29)
+#define EXYNOS_CIGCTRL_SELCAM_ITU_MASK		(1 << 29)
+#define EXYNOS_CIGCTRL_TESTPATTERN_NORMAL		(0 << 27)
+#define EXYNOS_CIGCTRL_TESTPATTERN_COLOR_BAR	(1 << 27)
+#define EXYNOS_CIGCTRL_TESTPATTERN_HOR_INC		(2 << 27)
+#define EXYNOS_CIGCTRL_TESTPATTERN_VER_INC		(3 << 27)
+#define EXYNOS_CIGCTRL_TESTPATTERN_MASK		(3 << 27)
+#define EXYNOS_CIGCTRL_TESTPATTERN_SHIFT		(27)
+#define EXYNOS_CIGCTRL_INVPOLPCLK			(1 << 26)
+#define EXYNOS_CIGCTRL_INVPOLVSYNC			(1 << 25)
+#define EXYNOS_CIGCTRL_INVPOLHREF			(1 << 24)
+#define EXYNOS_CIGCTRL_IRQ_OVFEN			(1 << 22)
+#define EXYNOS_CIGCTRL_HREF_MASK			(1 << 21)
+#define EXYNOS_CIGCTRL_IRQ_EDGE			(0 << 20)
+#define EXYNOS_CIGCTRL_IRQ_LEVEL			(1 << 20)
+#define EXYNOS_CIGCTRL_IRQ_CLR			(1 << 19)
+#define EXYNOS_CIGCTRL_IRQ_END_DISABLE		(1 << 18)
+#define EXYNOS_CIGCTRL_IRQ_DISABLE			(0 << 16)
+#define EXYNOS_CIGCTRL_IRQ_ENABLE			(1 << 16)
+#define EXYNOS_CIGCTRL_SHADOW_DISABLE		(1 << 12)
+#define EXYNOS_CIGCTRL_CAM_JPEG			(1 << 8)
+#define EXYNOS_CIGCTRL_SELCAM_MIPI_B		(0 << 7)
+#define EXYNOS_CIGCTRL_SELCAM_MIPI_A		(1 << 7)
+#define EXYNOS_CIGCTRL_SELCAM_MIPI_MASK		(1 << 7)
+#define EXYNOS_CIGCTRL_SELWB_CAMIF_CAMERA	(0 << 6)
+#define EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK	(1 << 6)
+#define EXYNOS_CIGCTRL_SELWRITEBACK_MASK		(1 << 10)
+#define EXYNOS_CIGCTRL_SELWRITEBACK_A		(1 << 10)
+#define EXYNOS_CIGCTRL_SELWRITEBACK_B		(0 << 10)
+#define EXYNOS_CIGCTRL_SELWB_CAMIF_MASK		(1 << 6)
+#define EXYNOS_CIGCTRL_CSC_ITU601			(0 << 5)
+#define EXYNOS_CIGCTRL_CSC_ITU709			(1 << 5)
+#define EXYNOS_CIGCTRL_CSC_MASK			(1 << 5)
+#define EXYNOS_CIGCTRL_INVPOLHSYNC			(1 << 4)
+#define EXYNOS_CIGCTRL_SELCAM_FIMC_ITU		(0 << 3)
+#define EXYNOS_CIGCTRL_SELCAM_FIMC_MIPI		(1 << 3)
+#define EXYNOS_CIGCTRL_SELCAM_FIMC_MASK		(1 << 3)
+#define EXYNOS_CIGCTRL_PROGRESSIVE			(0 << 0)
+#define EXYNOS_CIGCTRL_INTERLACE			(1 << 0)
+
+/* Window offset2 register */
+#define EXYNOS_CIWDOFST_WINHOROFST2_MASK		(0xfff << 16)
+#define EXYNOS_CIWDOFST_WINVEROFST2_MASK		(0xfff << 16)
+
+/* Target format register */
+#define EXYNOS_CITRGFMT_INROT90_CLOCKWISE		(1 << 31)
+#define EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420		(0 << 29)
+#define EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422		(1 << 29)
+#define EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE	(2 << 29)
+#define EXYNOS_CITRGFMT_OUTFORMAT_RGB		(3 << 29)
+#define EXYNOS_CITRGFMT_OUTFORMAT_MASK		(3 << 29)
+#define EXYNOS_CITRGFMT_FLIP_SHIFT			(14)
+#define EXYNOS_CITRGFMT_FLIP_NORMAL		(0 << 14)
+#define EXYNOS_CITRGFMT_FLIP_X_MIRROR		(1 << 14)
+#define EXYNOS_CITRGFMT_FLIP_Y_MIRROR		(2 << 14)
+#define EXYNOS_CITRGFMT_FLIP_180			(3 << 14)
+#define EXYNOS_CITRGFMT_FLIP_MASK			(3 << 14)
+#define EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE		(1 << 13)
+#define EXYNOS_CITRGFMT_TARGETV_MASK		(0x1fff << 0)
+#define EXYNOS_CITRGFMT_TARGETH_MASK		(0x1fff << 16)
+
+/* Output DMA control register */
+#define EXYNOS_CIOCTRL_WEAVE_OUT			(1 << 31)
+#define EXYNOS_CIOCTRL_WEAVE_MASK			(1 << 31)
+#define EXYNOS_CIOCTRL_LASTENDEN			(1 << 30)
+#define EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR		(0 << 24)
+#define EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB		(1 << 24)
+#define EXYNOS_CIOCTRL_ORDER2P_MSB_CRCB		(2 << 24)
+#define EXYNOS_CIOCTRL_ORDER2P_MSB_CBCR		(3 << 24)
+#define EXYNOS_CIOCTRL_ORDER2P_SHIFT		(24)
+#define EXYNOS_CIOCTRL_ORDER2P_MASK		(3 << 24)
+#define EXYNOS_CIOCTRL_YCBCR_3PLANE		(0 << 3)
+#define EXYNOS_CIOCTRL_YCBCR_2PLANE		(1 << 3)
+#define EXYNOS_CIOCTRL_YCBCR_PLANE_MASK		(1 << 3)
+#define EXYNOS_CIOCTRL_LASTIRQ_ENABLE		(1 << 2)
+#define EXYNOS_CIOCTRL_ALPHA_OUT			(0xff << 4)
+#define EXYNOS_CIOCTRL_ORDER422_YCBYCR		(0 << 0)
+#define EXYNOS_CIOCTRL_ORDER422_YCRYCB		(1 << 0)
+#define EXYNOS_CIOCTRL_ORDER422_CBYCRY		(2 << 0)
+#define EXYNOS_CIOCTRL_ORDER422_CRYCBY		(3 << 0)
+#define EXYNOS_CIOCTRL_ORDER422_MASK		(3 << 0)
+
+/* Main scaler control register */
+#define EXYNOS_CISCCTRL_SCALERBYPASS		(1 << 31)
+#define EXYNOS_CISCCTRL_SCALEUP_H			(1 << 30)
+#define EXYNOS_CISCCTRL_SCALEUP_V			(1 << 29)
+#define EXYNOS_CISCCTRL_CSCR2Y_NARROW		(0 << 28)
+#define EXYNOS_CISCCTRL_CSCR2Y_WIDE		(1 << 28)
+#define EXYNOS_CISCCTRL_CSCY2R_NARROW		(0 << 27)
+#define EXYNOS_CISCCTRL_CSCY2R_WIDE		(1 << 27)
+#define EXYNOS_CISCCTRL_LCDPATHEN_FIFO		(1 << 26)
+#define EXYNOS_CISCCTRL_PROGRESSIVE		(0 << 25)
+#define EXYNOS_CISCCTRL_INTERLACE			(1 << 25)
+#define EXYNOS_CISCCTRL_SCAN_MASK			(1 << 25)
+#define EXYNOS_CISCCTRL_SCALERSTART		(1 << 15)
+#define EXYNOS_CISCCTRL_INRGB_FMT_RGB565		(0 << 13)
+#define EXYNOS_CISCCTRL_INRGB_FMT_RGB666		(1 << 13)
+#define EXYNOS_CISCCTRL_INRGB_FMT_RGB888		(2 << 13)
+#define EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK		(3 << 13)
+#define EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565		(0 << 11)
+#define EXYNOS_CISCCTRL_OUTRGB_FMT_RGB666		(1 << 11)
+#define EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888		(2 << 11)
+#define EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK	(3 << 11)
+#define EXYNOS_CISCCTRL_EXTRGB_NORMAL		(0 << 10)
+#define EXYNOS_CISCCTRL_EXTRGB_EXTENSION		(1 << 10)
+#define EXYNOS_CISCCTRL_ONE2ONE			(1 << 9)
+#define EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK		(0x1ff << 0)
+#define EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK		(0x1ff << 16)
+
+/* Status register */
+#define EXYNOS_CISTATUS_OVFIY			(1 << 31)
+#define EXYNOS_CISTATUS_OVFICB			(1 << 30)
+#define EXYNOS_CISTATUS_OVFICR			(1 << 29)
+#define EXYNOS_CISTATUS_VSYNC			(1 << 28)
+#define EXYNOS_CISTATUS_SCALERSTART		(1 << 26)
+#define EXYNOS_CISTATUS_WINOFSTEN			(1 << 25)
+#define EXYNOS_CISTATUS_IMGCPTEN			(1 << 22)
+#define EXYNOS_CISTATUS_IMGCPTENSC			(1 << 21)
+#define EXYNOS_CISTATUS_VSYNC_A			(1 << 20)
+#define EXYNOS_CISTATUS_VSYNC_B			(1 << 19)
+#define EXYNOS_CISTATUS_OVRLB			(1 << 18)
+#define EXYNOS_CISTATUS_FRAMEEND			(1 << 17)
+#define EXYNOS_CISTATUS_LASTCAPTUREEND		(1 << 16)
+#define EXYNOS_CISTATUS_VVALID_A			(1 << 15)
+#define EXYNOS_CISTATUS_VVALID_B			(1 << 14)
+
+/* Image capture enable register */
+#define EXYNOS_CIIMGCPT_IMGCPTEN			(1 << 31)
+#define EXYNOS_CIIMGCPT_IMGCPTEN_SC		(1 << 30)
+#define EXYNOS_CIIMGCPT_CPT_FREN_ENABLE		(1 << 25)
+#define EXYNOS_CIIMGCPT_CPT_FRMOD_EN		(0 << 18)
+#define EXYNOS_CIIMGCPT_CPT_FRMOD_CNT		(1 << 18)
+
+/* Image effects register */
+#define EXYNOS_CIIMGEFF_IE_DISABLE			(0 << 30)
+#define EXYNOS_CIIMGEFF_IE_ENABLE			(1 << 30)
+#define EXYNOS_CIIMGEFF_IE_SC_BEFORE		(0 << 29)
+#define EXYNOS_CIIMGEFF_IE_SC_AFTER		(1 << 29)
+#define EXYNOS_CIIMGEFF_FIN_BYPASS			(0 << 26)
+#define EXYNOS_CIIMGEFF_FIN_ARBITRARY		(1 << 26)
+#define EXYNOS_CIIMGEFF_FIN_NEGATIVE		(2 << 26)
+#define EXYNOS_CIIMGEFF_FIN_ARTFREEZE		(3 << 26)
+#define EXYNOS_CIIMGEFF_FIN_EMBOSSING		(4 << 26)
+#define EXYNOS_CIIMGEFF_FIN_SILHOUETTE		(5 << 26)
+#define EXYNOS_CIIMGEFF_FIN_MASK			(7 << 26)
+#define EXYNOS_CIIMGEFF_PAT_CBCR_MASK		((0xff < 13) | (0xff < 0))
+
+/* Real input DMA size register */
+#define EXYNOS_CIREAL_ISIZE_AUTOLOAD_ENABLE	(1 << 31)
+#define EXYNOS_CIREAL_ISIZE_ADDR_CH_DISABLE	(1 << 30)
+#define EXYNOS_CIREAL_ISIZE_HEIGHT_MASK		(0x3FFF << 16)
+#define EXYNOS_CIREAL_ISIZE_WIDTH_MASK		(0x3FFF << 0)
+
+/* Input DMA control register */
+#define EXYNOS_MSCTRL_FIELD_MASK			(1 << 31)
+#define EXYNOS_MSCTRL_FIELD_WEAVE			(1 << 31)
+#define EXYNOS_MSCTRL_FIELD_NORMAL			(0 << 31)
+#define EXYNOS_MSCTRL_BURST_CNT			(24)
+#define EXYNOS_MSCTRL_BURST_CNT_MASK		(0xf << 24)
+#define EXYNOS_MSCTRL_ORDER2P_LSB_CBCR		(0 << 16)
+#define EXYNOS_MSCTRL_ORDER2P_LSB_CRCB		(1 << 16)
+#define EXYNOS_MSCTRL_ORDER2P_MSB_CRCB		(2 << 16)
+#define EXYNOS_MSCTRL_ORDER2P_MSB_CBCR		(3 << 16)
+#define EXYNOS_MSCTRL_ORDER2P_SHIFT		(16)
+#define EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK		(0x3 << 16)
+#define EXYNOS_MSCTRL_C_INT_IN_3PLANE		(0 << 15)
+#define EXYNOS_MSCTRL_C_INT_IN_2PLANE		(1 << 15)
+#define EXYNOS_MSCTRL_FLIP_SHIFT			(13)
+#define EXYNOS_MSCTRL_FLIP_NORMAL			(0 << 13)
+#define EXYNOS_MSCTRL_FLIP_X_MIRROR		(1 << 13)
+#define EXYNOS_MSCTRL_FLIP_Y_MIRROR		(2 << 13)
+#define EXYNOS_MSCTRL_FLIP_180			(3 << 13)
+#define EXYNOS_MSCTRL_FLIP_MASK			(3 << 13)
+#define EXYNOS_MSCTRL_ORDER422_CRYCBY		(0 << 4)
+#define EXYNOS_MSCTRL_ORDER422_YCRYCB		(1 << 4)
+#define EXYNOS_MSCTRL_ORDER422_CBYCRY		(2 << 4)
+#define EXYNOS_MSCTRL_ORDER422_YCBYCR		(3 << 4)
+#define EXYNOS_MSCTRL_INPUT_EXTCAM			(0 << 3)
+#define EXYNOS_MSCTRL_INPUT_MEMORY			(1 << 3)
+#define EXYNOS_MSCTRL_INPUT_MASK			(1 << 3)
+#define EXYNOS_MSCTRL_INFORMAT_YCBCR420		(0 << 1)
+#define EXYNOS_MSCTRL_INFORMAT_YCBCR422		(1 << 1)
+#define EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE	(2 << 1)
+#define EXYNOS_MSCTRL_INFORMAT_RGB			(3 << 1)
+#define EXYNOS_MSCTRL_ENVID			(1 << 0)
+
+/* DMA parameter register */
+#define EXYNOS_CIDMAPARAM_R_MODE_LINEAR		(0 << 29)
+#define EXYNOS_CIDMAPARAM_R_MODE_CONFTILE		(1 << 29)
+#define EXYNOS_CIDMAPARAM_R_MODE_16X16		(2 << 29)
+#define EXYNOS_CIDMAPARAM_R_MODE_64X32		(3 << 29)
+#define EXYNOS_CIDMAPARAM_R_MODE_MASK		(3 << 29)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_64		(0 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_128		(1 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_256		(2 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_512		(3 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_1024	(4 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_2048	(5 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_HSIZE_4096	(6 << 24)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_1		(0 << 20)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_2		(1 << 20)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_4		(2 << 20)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_8		(3 << 20)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_16		(4 << 20)
+#define EXYNOS_CIDMAPARAM_R_TILE_VSIZE_32		(5 << 20)
+#define EXYNOS_CIDMAPARAM_W_MODE_LINEAR		(0 << 13)
+#define EXYNOS_CIDMAPARAM_W_MODE_CONFTILE		(1 << 13)
+#define EXYNOS_CIDMAPARAM_W_MODE_16X16		(2 << 13)
+#define EXYNOS_CIDMAPARAM_W_MODE_64X32		(3 << 13)
+#define EXYNOS_CIDMAPARAM_W_MODE_MASK		(3 << 13)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_64		(0 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_128		(1 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_256		(2 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_512		(3 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_1024	(4 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_2048	(5 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_HSIZE_4096	(6 << 8)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_1		(0 << 4)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_2		(1 << 4)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_4		(2 << 4)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_8		(3 << 4)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_16		(4 << 4)
+#define EXYNOS_CIDMAPARAM_W_TILE_VSIZE_32		(5 << 4)
+
+/* Gathering Extension register */
+#define EXYNOS_CIEXTEN_TARGETH_EXT_MASK		(1 << 26)
+#define EXYNOS_CIEXTEN_TARGETV_EXT_MASK		(1 << 24)
+#define EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK	(0x3F << 10)
+#define EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK	(0x3F)
+#define EXYNOS_CIEXTEN_YUV444_OUT			(1 << 22)
+
+/* FIMC Clock Source Select register */
+#define EXYNOS_CLKSRC_HCLK				(0 << 1)
+#define EXYNOS_CLKSRC_HCLK_MASK			(1 << 1)
+#define EXYNOS_CLKSRC_SCLK				(1 << 1)
+
+/* SYSREG for FIMC writeback */
+#define SYSREG_CAMERA_BLK			(0x0218)
+#define SYSREG_FIMD0WB_DEST_MASK		(0x3 << 23)
+#define SYSREG_FIMD0WB_DEST_SHIFT		23
+
+#endif /* EXYNOS_REGS_FIMC_H */
diff --git a/kernel/drivers/gpu/drm/exynos/regs-gsc.h b/kernel/drivers/gpu/drm/exynos/regs-gsc.h
new file mode 100644
index 000000000..9ad592707
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-gsc.h
@@ -0,0 +1,284 @@
+/* linux/drivers/gpu/drm/exynos/regs-gsc.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Register definition file for Samsung G-Scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef EXYNOS_REGS_GSC_H_
+#define EXYNOS_REGS_GSC_H_
+
+/* G-Scaler enable */
+#define GSC_ENABLE			0x00
+#define GSC_ENABLE_PP_UPDATE_TIME_MASK	(1 << 9)
+#define GSC_ENABLE_PP_UPDATE_TIME_CURR	(0 << 9)
+#define GSC_ENABLE_PP_UPDATE_TIME_EOPAS	(1 << 9)
+#define GSC_ENABLE_CLK_GATE_MODE_MASK	(1 << 8)
+#define GSC_ENABLE_CLK_GATE_MODE_FREE	(1 << 8)
+#define GSC_ENABLE_IPC_MODE_MASK	(1 << 7)
+#define GSC_ENABLE_NORM_MODE		(0 << 7)
+#define GSC_ENABLE_IPC_MODE		(1 << 7)
+#define GSC_ENABLE_PP_UPDATE_MODE_MASK	(1 << 6)
+#define GSC_ENABLE_PP_UPDATE_FIRE_MODE	(1 << 6)
+#define GSC_ENABLE_IN_PP_UPDATE		(1 << 5)
+#define GSC_ENABLE_ON_CLEAR_MASK	(1 << 4)
+#define GSC_ENABLE_ON_CLEAR_ONESHOT	(1 << 4)
+#define GSC_ENABLE_QOS_ENABLE		(1 << 3)
+#define GSC_ENABLE_OP_STATUS		(1 << 2)
+#define GSC_ENABLE_SFR_UPDATE		(1 << 1)
+#define GSC_ENABLE_ON			(1 << 0)
+
+/* G-Scaler S/W reset */
+#define GSC_SW_RESET			0x04
+#define GSC_SW_RESET_SRESET		(1 << 0)
+
+/* G-Scaler IRQ */
+#define GSC_IRQ				0x08
+#define GSC_IRQ_STATUS_OR_IRQ		(1 << 17)
+#define GSC_IRQ_STATUS_OR_FRM_DONE	(1 << 16)
+#define GSC_IRQ_OR_MASK			(1 << 2)
+#define GSC_IRQ_FRMDONE_MASK		(1 << 1)
+#define GSC_IRQ_ENABLE			(1 << 0)
+
+/* G-Scaler input control */
+#define GSC_IN_CON			0x10
+#define GSC_IN_CHROM_STRIDE_SEL_MASK	(1 << 20)
+#define GSC_IN_CHROM_STRIDE_SEPAR	(1 << 20)
+#define GSC_IN_RB_SWAP_MASK		(1 << 19)
+#define GSC_IN_RB_SWAP			(1 << 19)
+#define GSC_IN_ROT_MASK			(7 << 16)
+#define GSC_IN_ROT_270			(7 << 16)
+#define GSC_IN_ROT_90_YFLIP		(6 << 16)
+#define GSC_IN_ROT_90_XFLIP		(5 << 16)
+#define GSC_IN_ROT_90			(4 << 16)
+#define GSC_IN_ROT_180			(3 << 16)
+#define GSC_IN_ROT_YFLIP		(2 << 16)
+#define GSC_IN_ROT_XFLIP		(1 << 16)
+#define GSC_IN_RGB_TYPE_MASK		(3 << 14)
+#define GSC_IN_RGB_HD_WIDE		(3 << 14)
+#define GSC_IN_RGB_HD_NARROW		(2 << 14)
+#define GSC_IN_RGB_SD_WIDE		(1 << 14)
+#define GSC_IN_RGB_SD_NARROW		(0 << 14)
+#define GSC_IN_YUV422_1P_ORDER_MASK	(1 << 13)
+#define GSC_IN_YUV422_1P_ORDER_LSB_Y	(0 << 13)
+#define GSC_IN_YUV422_1P_OEDER_LSB_C	(1 << 13)
+#define GSC_IN_CHROMA_ORDER_MASK	(1 << 12)
+#define GSC_IN_CHROMA_ORDER_CBCR	(0 << 12)
+#define GSC_IN_CHROMA_ORDER_CRCB	(1 << 12)
+#define GSC_IN_FORMAT_MASK		(7 << 8)
+#define GSC_IN_XRGB8888			(0 << 8)
+#define GSC_IN_RGB565			(1 << 8)
+#define GSC_IN_YUV420_2P		(2 << 8)
+#define GSC_IN_YUV420_3P		(3 << 8)
+#define GSC_IN_YUV422_1P		(4 << 8)
+#define GSC_IN_YUV422_2P		(5 << 8)
+#define GSC_IN_YUV422_3P		(6 << 8)
+#define GSC_IN_TILE_TYPE_MASK		(1 << 4)
+#define GSC_IN_TILE_C_16x8		(0 << 4)
+#define GSC_IN_TILE_C_16x16		(1 << 4)
+#define GSC_IN_TILE_MODE		(1 << 3)
+#define GSC_IN_LOCAL_SEL_MASK		(3 << 1)
+#define GSC_IN_LOCAL_CAM3		(3 << 1)
+#define GSC_IN_LOCAL_FIMD_WB		(2 << 1)
+#define GSC_IN_LOCAL_CAM1		(1 << 1)
+#define GSC_IN_LOCAL_CAM0		(0 << 1)
+#define GSC_IN_PATH_MASK		(1 << 0)
+#define GSC_IN_PATH_LOCAL		(1 << 0)
+#define GSC_IN_PATH_MEMORY		(0 << 0)
+
+/* G-Scaler source image size */
+#define GSC_SRCIMG_SIZE			0x14
+#define GSC_SRCIMG_HEIGHT_MASK		(0x1fff << 16)
+#define GSC_SRCIMG_HEIGHT(x)		((x) << 16)
+#define GSC_SRCIMG_WIDTH_MASK		(0x3fff << 0)
+#define GSC_SRCIMG_WIDTH(x)		((x) << 0)
+
+/* G-Scaler source image offset */
+#define GSC_SRCIMG_OFFSET		0x18
+#define GSC_SRCIMG_OFFSET_Y_MASK	(0x1fff << 16)
+#define GSC_SRCIMG_OFFSET_Y(x)		((x) << 16)
+#define GSC_SRCIMG_OFFSET_X_MASK	(0x1fff << 0)
+#define GSC_SRCIMG_OFFSET_X(x)		((x) << 0)
+
+/* G-Scaler cropped source image size */
+#define GSC_CROPPED_SIZE		0x1C
+#define GSC_CROPPED_HEIGHT_MASK		(0x1fff << 16)
+#define GSC_CROPPED_HEIGHT(x)		((x) << 16)
+#define GSC_CROPPED_WIDTH_MASK		(0x1fff << 0)
+#define GSC_CROPPED_WIDTH(x)		((x) << 0)
+
+/* G-Scaler output control */
+#define GSC_OUT_CON			0x20
+#define GSC_OUT_GLOBAL_ALPHA_MASK	(0xff << 24)
+#define GSC_OUT_GLOBAL_ALPHA(x)		((x) << 24)
+#define GSC_OUT_CHROM_STRIDE_SEL_MASK	(1 << 13)
+#define GSC_OUT_CHROM_STRIDE_SEPAR	(1 << 13)
+#define GSC_OUT_RB_SWAP_MASK		(1 << 12)
+#define GSC_OUT_RB_SWAP			(1 << 12)
+#define GSC_OUT_RGB_TYPE_MASK		(3 << 10)
+#define GSC_OUT_RGB_HD_NARROW		(3 << 10)
+#define GSC_OUT_RGB_HD_WIDE		(2 << 10)
+#define GSC_OUT_RGB_SD_NARROW		(1 << 10)
+#define GSC_OUT_RGB_SD_WIDE		(0 << 10)
+#define GSC_OUT_YUV422_1P_ORDER_MASK	(1 << 9)
+#define GSC_OUT_YUV422_1P_ORDER_LSB_Y	(0 << 9)
+#define GSC_OUT_YUV422_1P_OEDER_LSB_C	(1 << 9)
+#define GSC_OUT_CHROMA_ORDER_MASK	(1 << 8)
+#define GSC_OUT_CHROMA_ORDER_CBCR	(0 << 8)
+#define GSC_OUT_CHROMA_ORDER_CRCB	(1 << 8)
+#define GSC_OUT_FORMAT_MASK		(7 << 4)
+#define GSC_OUT_XRGB8888		(0 << 4)
+#define GSC_OUT_RGB565			(1 << 4)
+#define GSC_OUT_YUV420_2P		(2 << 4)
+#define GSC_OUT_YUV420_3P		(3 << 4)
+#define GSC_OUT_YUV422_1P		(4 << 4)
+#define GSC_OUT_YUV422_2P		(5 << 4)
+#define GSC_OUT_YUV444			(7 << 4)
+#define GSC_OUT_TILE_TYPE_MASK		(1 << 2)
+#define GSC_OUT_TILE_C_16x8		(0 << 2)
+#define GSC_OUT_TILE_C_16x16		(1 << 2)
+#define GSC_OUT_TILE_MODE		(1 << 1)
+#define GSC_OUT_PATH_MASK		(1 << 0)
+#define GSC_OUT_PATH_LOCAL		(1 << 0)
+#define GSC_OUT_PATH_MEMORY		(0 << 0)
+
+/* G-Scaler scaled destination image size */
+#define GSC_SCALED_SIZE			0x24
+#define GSC_SCALED_HEIGHT_MASK		(0x1fff << 16)
+#define GSC_SCALED_HEIGHT(x)		((x) << 16)
+#define GSC_SCALED_WIDTH_MASK		(0x1fff << 0)
+#define GSC_SCALED_WIDTH(x)		((x) << 0)
+
+/* G-Scaler pre scale ratio */
+#define GSC_PRE_SCALE_RATIO		0x28
+#define GSC_PRESC_SHFACTOR_MASK		(7 << 28)
+#define GSC_PRESC_SHFACTOR(x)		((x) << 28)
+#define GSC_PRESC_V_RATIO_MASK		(7 << 16)
+#define GSC_PRESC_V_RATIO(x)		((x) << 16)
+#define GSC_PRESC_H_RATIO_MASK		(7 << 0)
+#define GSC_PRESC_H_RATIO(x)		((x) << 0)
+
+/* G-Scaler main scale horizontal ratio */
+#define GSC_MAIN_H_RATIO		0x2C
+#define GSC_MAIN_H_RATIO_MASK		(0xfffff << 0)
+#define GSC_MAIN_H_RATIO_VALUE(x)	((x) << 0)
+
+/* G-Scaler main scale vertical ratio */
+#define GSC_MAIN_V_RATIO		0x30
+#define GSC_MAIN_V_RATIO_MASK		(0xfffff << 0)
+#define GSC_MAIN_V_RATIO_VALUE(x)	((x) << 0)
+
+/* G-Scaler input chrominance stride */
+#define GSC_IN_CHROM_STRIDE		0x3C
+#define GSC_IN_CHROM_STRIDE_MASK	(0x3fff << 0)
+#define GSC_IN_CHROM_STRIDE_VALUE(x)	((x) << 0)
+
+/* G-Scaler destination image size */
+#define GSC_DSTIMG_SIZE			0x40
+#define GSC_DSTIMG_HEIGHT_MASK		(0x1fff << 16)
+#define GSC_DSTIMG_HEIGHT(x)		((x) << 16)
+#define GSC_DSTIMG_WIDTH_MASK		(0x1fff << 0)
+#define GSC_DSTIMG_WIDTH(x)		((x) << 0)
+
+/* G-Scaler destination image offset */
+#define GSC_DSTIMG_OFFSET		0x44
+#define GSC_DSTIMG_OFFSET_Y_MASK	(0x1fff << 16)
+#define GSC_DSTIMG_OFFSET_Y(x)		((x) << 16)
+#define GSC_DSTIMG_OFFSET_X_MASK	(0x1fff << 0)
+#define GSC_DSTIMG_OFFSET_X(x)		((x) << 0)
+
+/* G-Scaler output chrominance stride */
+#define GSC_OUT_CHROM_STRIDE		0x48
+#define GSC_OUT_CHROM_STRIDE_MASK	(0x3fff << 0)
+#define GSC_OUT_CHROM_STRIDE_VALUE(x)	((x) << 0)
+
+/* G-Scaler input y address mask */
+#define GSC_IN_BASE_ADDR_Y_MASK		0x4C
+/* G-Scaler input y base address */
+#define GSC_IN_BASE_ADDR_Y(n)		(0x50 + (n) * 0x4)
+/* G-Scaler input y base current address */
+#define GSC_IN_BASE_ADDR_Y_CUR(n)	(0x60 + (n) * 0x4)
+
+/* G-Scaler input cb address mask */
+#define GSC_IN_BASE_ADDR_CB_MASK	0x7C
+/* G-Scaler input cb base address */
+#define GSC_IN_BASE_ADDR_CB(n)		(0x80 + (n) * 0x4)
+/* G-Scaler input cb base current address */
+#define GSC_IN_BASE_ADDR_CB_CUR(n)	(0x90 + (n) * 0x4)
+
+/* G-Scaler input cr address mask */
+#define GSC_IN_BASE_ADDR_CR_MASK	0xAC
+/* G-Scaler input cr base address */
+#define GSC_IN_BASE_ADDR_CR(n)		(0xB0 + (n) * 0x4)
+/* G-Scaler input cr base current address */
+#define GSC_IN_BASE_ADDR_CR_CUR(n)	(0xC0 + (n) * 0x4)
+
+/* G-Scaler input address mask */
+#define GSC_IN_CURR_ADDR_INDEX	(0xf << 24)
+#define GSC_IN_CURR_GET_INDEX(x)	((x) >> 24)
+#define GSC_IN_BASE_ADDR_PINGPONG(x)	((x) << 16)
+#define GSC_IN_BASE_ADDR_MASK		(0xff << 0)
+
+/* G-Scaler output y address mask */
+#define GSC_OUT_BASE_ADDR_Y_MASK	0x10C
+/* G-Scaler output y base address */
+#define GSC_OUT_BASE_ADDR_Y(n)		(0x110 + (n) * 0x4)
+
+/* G-Scaler output cb address mask */
+#define GSC_OUT_BASE_ADDR_CB_MASK	0x15C
+/* G-Scaler output cb base address */
+#define GSC_OUT_BASE_ADDR_CB(n)		(0x160 + (n) * 0x4)
+
+/* G-Scaler output cr address mask */
+#define GSC_OUT_BASE_ADDR_CR_MASK	0x1AC
+/* G-Scaler output cr base address */
+#define GSC_OUT_BASE_ADDR_CR(n)		(0x1B0 + (n) * 0x4)
+
+/* G-Scaler output address mask */
+#define GSC_OUT_CURR_ADDR_INDEX		(0xf << 24)
+#define GSC_OUT_CURR_GET_INDEX(x)	((x) >> 24)
+#define GSC_OUT_BASE_ADDR_PINGPONG(x)	((x) << 16)
+#define GSC_OUT_BASE_ADDR_MASK		(0xffff << 0)
+
+/* G-Scaler horizontal scaling filter */
+#define GSC_HCOEF(n, s, x)	(0x300 + (n) * 0x4 + (s) * 0x30 + (x) * 0x300)
+
+/* G-Scaler vertical scaling filter */
+#define GSC_VCOEF(n, s, x)	(0x200 + (n) * 0x4 + (s) * 0x30 + (x) * 0x300)
+
+/* G-Scaler BUS control */
+#define GSC_BUSCON			0xA78
+#define GSC_BUSCON_INT_TIME_MASK	(1 << 8)
+#define GSC_BUSCON_INT_DATA_TRANS	(0 << 8)
+#define GSC_BUSCON_INT_AXI_RESPONSE	(1 << 8)
+#define GSC_BUSCON_AWCACHE(x)		((x) << 4)
+#define GSC_BUSCON_ARCACHE(x)		((x) << 0)
+
+/* G-Scaler V position */
+#define GSC_VPOSITION			0xA7C
+#define GSC_VPOS_F(x)			((x) << 0)
+
+
+/* G-Scaler clock initial count */
+#define GSC_CLK_INIT_COUNT		0xC00
+#define GSC_CLK_GATE_MODE_INIT_CNT(x)	((x) << 0)
+
+/* G-Scaler clock snoop count */
+#define GSC_CLK_SNOOP_COUNT		0xC04
+#define GSC_CLK_GATE_MODE_SNOOP_CNT(x)	((x) << 0)
+
+/* SYSCON. GSCBLK_CFG */
+#define SYSREG_GSCBLK_CFG1		(S3C_VA_SYS + 0x0224)
+#define GSC_BLK_DISP1WB_DEST(x)		(x << 10)
+#define GSC_BLK_SW_RESET_WB_DEST(x)	(1 << (18 + x))
+#define GSC_BLK_PXLASYNC_LO_MASK_WB(x)	(0 << (14 + x))
+#define GSC_BLK_GSCL_WB_IN_SRC_SEL(x)	(1 << (2 * x))
+#define SYSREG_GSCBLK_CFG2		(S3C_VA_SYS + 0x2000)
+#define PXLASYNC_LO_MASK_CAMIF_GSCL(x)	(1 << (x))
+
+#endif /* EXYNOS_REGS_GSC_H_ */
diff --git a/kernel/drivers/gpu/drm/exynos/regs-hdmi.h b/kernel/drivers/gpu/drm/exynos/regs-hdmi.h
new file mode 100644
index 000000000..3f35ac6d8
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-hdmi.h
@@ -0,0 +1,597 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-hdmi.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * HDMI register header file for Samsung TVOUT driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef SAMSUNG_REGS_HDMI_H
+#define SAMSUNG_REGS_HDMI_H
+
+/*
+ * Register part
+*/
+
+/* HDMI Version 1.3 & Common */
+#define HDMI_CTRL_BASE(x)		((x) + 0x00000000)
+#define HDMI_CORE_BASE(x)		((x) + 0x00010000)
+#define HDMI_I2S_BASE(x)		((x) + 0x00040000)
+#define HDMI_TG_BASE(x)			((x) + 0x00050000)
+
+/* Control registers */
+#define HDMI_INTC_CON			HDMI_CTRL_BASE(0x0000)
+#define HDMI_INTC_FLAG			HDMI_CTRL_BASE(0x0004)
+#define HDMI_HPD_STATUS			HDMI_CTRL_BASE(0x000C)
+#define HDMI_V13_PHY_RSTOUT		HDMI_CTRL_BASE(0x0014)
+#define HDMI_V13_PHY_VPLL		HDMI_CTRL_BASE(0x0018)
+#define HDMI_V13_PHY_CMU		HDMI_CTRL_BASE(0x001C)
+#define HDMI_V13_CORE_RSTOUT		HDMI_CTRL_BASE(0x0020)
+
+/* Core registers */
+#define HDMI_CON_0			HDMI_CORE_BASE(0x0000)
+#define HDMI_CON_1			HDMI_CORE_BASE(0x0004)
+#define HDMI_CON_2			HDMI_CORE_BASE(0x0008)
+#define HDMI_SYS_STATUS			HDMI_CORE_BASE(0x0010)
+#define HDMI_V13_PHY_STATUS		HDMI_CORE_BASE(0x0014)
+#define HDMI_STATUS_EN			HDMI_CORE_BASE(0x0020)
+#define HDMI_HPD			HDMI_CORE_BASE(0x0030)
+#define HDMI_MODE_SEL			HDMI_CORE_BASE(0x0040)
+#define HDMI_ENC_EN			HDMI_CORE_BASE(0x0044)
+#define HDMI_V13_BLUE_SCREEN_0		HDMI_CORE_BASE(0x0050)
+#define HDMI_V13_BLUE_SCREEN_1		HDMI_CORE_BASE(0x0054)
+#define HDMI_V13_BLUE_SCREEN_2		HDMI_CORE_BASE(0x0058)
+#define HDMI_H_BLANK_0			HDMI_CORE_BASE(0x00A0)
+#define HDMI_H_BLANK_1			HDMI_CORE_BASE(0x00A4)
+#define HDMI_V13_V_BLANK_0		HDMI_CORE_BASE(0x00B0)
+#define HDMI_V13_V_BLANK_1		HDMI_CORE_BASE(0x00B4)
+#define HDMI_V13_V_BLANK_2		HDMI_CORE_BASE(0x00B8)
+#define HDMI_V13_H_V_LINE_0		HDMI_CORE_BASE(0x00C0)
+#define HDMI_V13_H_V_LINE_1		HDMI_CORE_BASE(0x00C4)
+#define HDMI_V13_H_V_LINE_2		HDMI_CORE_BASE(0x00C8)
+#define HDMI_VSYNC_POL			HDMI_CORE_BASE(0x00E4)
+#define HDMI_INT_PRO_MODE		HDMI_CORE_BASE(0x00E8)
+#define HDMI_V13_V_BLANK_F_0		HDMI_CORE_BASE(0x0110)
+#define HDMI_V13_V_BLANK_F_1		HDMI_CORE_BASE(0x0114)
+#define HDMI_V13_V_BLANK_F_2		HDMI_CORE_BASE(0x0118)
+#define HDMI_V13_H_SYNC_GEN_0		HDMI_CORE_BASE(0x0120)
+#define HDMI_V13_H_SYNC_GEN_1		HDMI_CORE_BASE(0x0124)
+#define HDMI_V13_H_SYNC_GEN_2		HDMI_CORE_BASE(0x0128)
+#define HDMI_V13_V_SYNC_GEN_1_0		HDMI_CORE_BASE(0x0130)
+#define HDMI_V13_V_SYNC_GEN_1_1		HDMI_CORE_BASE(0x0134)
+#define HDMI_V13_V_SYNC_GEN_1_2		HDMI_CORE_BASE(0x0138)
+#define HDMI_V13_V_SYNC_GEN_2_0		HDMI_CORE_BASE(0x0140)
+#define HDMI_V13_V_SYNC_GEN_2_1		HDMI_CORE_BASE(0x0144)
+#define HDMI_V13_V_SYNC_GEN_2_2		HDMI_CORE_BASE(0x0148)
+#define HDMI_V13_V_SYNC_GEN_3_0		HDMI_CORE_BASE(0x0150)
+#define HDMI_V13_V_SYNC_GEN_3_1		HDMI_CORE_BASE(0x0154)
+#define HDMI_V13_V_SYNC_GEN_3_2		HDMI_CORE_BASE(0x0158)
+#define HDMI_V13_ACR_CON		HDMI_CORE_BASE(0x0180)
+#define HDMI_V13_AVI_CON		HDMI_CORE_BASE(0x0300)
+#define HDMI_V13_AVI_BYTE(n)		HDMI_CORE_BASE(0x0320 + 4 * (n))
+#define HDMI_V13_DC_CONTROL		HDMI_CORE_BASE(0x05C0)
+#define HDMI_V13_VIDEO_PATTERN_GEN	HDMI_CORE_BASE(0x05C4)
+#define HDMI_V13_HPD_GEN		HDMI_CORE_BASE(0x05C8)
+#define HDMI_V13_AUI_CON		HDMI_CORE_BASE(0x0360)
+#define HDMI_V13_SPD_CON		HDMI_CORE_BASE(0x0400)
+
+/* Timing generator registers */
+#define HDMI_TG_CMD			HDMI_TG_BASE(0x0000)
+#define HDMI_TG_H_FSZ_L			HDMI_TG_BASE(0x0018)
+#define HDMI_TG_H_FSZ_H			HDMI_TG_BASE(0x001C)
+#define HDMI_TG_HACT_ST_L		HDMI_TG_BASE(0x0020)
+#define HDMI_TG_HACT_ST_H		HDMI_TG_BASE(0x0024)
+#define HDMI_TG_HACT_SZ_L		HDMI_TG_BASE(0x0028)
+#define HDMI_TG_HACT_SZ_H		HDMI_TG_BASE(0x002C)
+#define HDMI_TG_V_FSZ_L			HDMI_TG_BASE(0x0030)
+#define HDMI_TG_V_FSZ_H			HDMI_TG_BASE(0x0034)
+#define HDMI_TG_VSYNC_L			HDMI_TG_BASE(0x0038)
+#define HDMI_TG_VSYNC_H			HDMI_TG_BASE(0x003C)
+#define HDMI_TG_VSYNC2_L		HDMI_TG_BASE(0x0040)
+#define HDMI_TG_VSYNC2_H		HDMI_TG_BASE(0x0044)
+#define HDMI_TG_VACT_ST_L		HDMI_TG_BASE(0x0048)
+#define HDMI_TG_VACT_ST_H		HDMI_TG_BASE(0x004C)
+#define HDMI_TG_VACT_SZ_L		HDMI_TG_BASE(0x0050)
+#define HDMI_TG_VACT_SZ_H		HDMI_TG_BASE(0x0054)
+#define HDMI_TG_FIELD_CHG_L		HDMI_TG_BASE(0x0058)
+#define HDMI_TG_FIELD_CHG_H		HDMI_TG_BASE(0x005C)
+#define HDMI_TG_VACT_ST2_L		HDMI_TG_BASE(0x0060)
+#define HDMI_TG_VACT_ST2_H		HDMI_TG_BASE(0x0064)
+#define HDMI_TG_VSYNC_TOP_HDMI_L	HDMI_TG_BASE(0x0078)
+#define HDMI_TG_VSYNC_TOP_HDMI_H	HDMI_TG_BASE(0x007C)
+#define HDMI_TG_VSYNC_BOT_HDMI_L	HDMI_TG_BASE(0x0080)
+#define HDMI_TG_VSYNC_BOT_HDMI_H	HDMI_TG_BASE(0x0084)
+#define HDMI_TG_FIELD_TOP_HDMI_L	HDMI_TG_BASE(0x0088)
+#define HDMI_TG_FIELD_TOP_HDMI_H	HDMI_TG_BASE(0x008C)
+#define HDMI_TG_FIELD_BOT_HDMI_L	HDMI_TG_BASE(0x0090)
+#define HDMI_TG_FIELD_BOT_HDMI_H	HDMI_TG_BASE(0x0094)
+
+/*
+ * Bit definition part
+ */
+
+/* HDMI_INTC_CON */
+#define HDMI_INTC_EN_GLOBAL		(1 << 6)
+#define HDMI_INTC_EN_HPD_PLUG		(1 << 3)
+#define HDMI_INTC_EN_HPD_UNPLUG		(1 << 2)
+
+/* HDMI_INTC_FLAG */
+#define HDMI_INTC_FLAG_HPD_PLUG		(1 << 3)
+#define HDMI_INTC_FLAG_HPD_UNPLUG	(1 << 2)
+
+/* HDMI_PHY_RSTOUT */
+#define HDMI_PHY_SW_RSTOUT		(1 << 0)
+
+/* HDMI_CORE_RSTOUT */
+#define HDMI_CORE_SW_RSTOUT		(1 << 0)
+
+/* HDMI_CON_0 */
+#define HDMI_BLUE_SCR_EN		(1 << 5)
+#define HDMI_ASP_EN			(1 << 2)
+#define HDMI_ASP_DIS			(0 << 2)
+#define HDMI_ASP_MASK			(1 << 2)
+#define HDMI_EN				(1 << 0)
+
+/* HDMI_CON_2 */
+#define HDMI_VID_PREAMBLE_DIS		(1 << 5)
+#define HDMI_GUARD_BAND_DIS		(1 << 1)
+
+/* HDMI_PHY_STATUS */
+#define HDMI_PHY_STATUS_READY		(1 << 0)
+
+/* HDMI_MODE_SEL */
+#define HDMI_MODE_HDMI_EN		(1 << 1)
+#define HDMI_MODE_DVI_EN		(1 << 0)
+#define HDMI_MODE_MASK			(3 << 0)
+
+/* HDMI_TG_CMD */
+#define HDMI_TG_EN			(1 << 0)
+#define HDMI_FIELD_EN			(1 << 1)
+
+
+/* HDMI Version 1.4 */
+/* Control registers */
+/* #define HDMI_INTC_CON		HDMI_CTRL_BASE(0x0000) */
+/* #define HDMI_INTC_FLAG		HDMI_CTRL_BASE(0x0004) */
+#define HDMI_HDCP_KEY_LOAD		HDMI_CTRL_BASE(0x0008)
+/* #define HDMI_HPD_STATUS		HDMI_CTRL_BASE(0x000C) */
+#define HDMI_INTC_CON_1			HDMI_CTRL_BASE(0x0010)
+#define HDMI_INTC_FLAG_1		HDMI_CTRL_BASE(0x0014)
+#define HDMI_PHY_STATUS_0		HDMI_CTRL_BASE(0x0020)
+#define HDMI_PHY_STATUS_CMU		HDMI_CTRL_BASE(0x0024)
+#define HDMI_PHY_STATUS_PLL		HDMI_CTRL_BASE(0x0028)
+#define HDMI_PHY_CON_0			HDMI_CTRL_BASE(0x0030)
+#define HDMI_HPD_CTRL			HDMI_CTRL_BASE(0x0040)
+#define HDMI_HPD_ST			HDMI_CTRL_BASE(0x0044)
+#define HDMI_HPD_TH_X			HDMI_CTRL_BASE(0x0050)
+#define HDMI_AUDIO_CLKSEL		HDMI_CTRL_BASE(0x0070)
+#define HDMI_PHY_RSTOUT			HDMI_CTRL_BASE(0x0074)
+#define HDMI_PHY_VPLL			HDMI_CTRL_BASE(0x0078)
+#define HDMI_PHY_CMU			HDMI_CTRL_BASE(0x007C)
+#define HDMI_CORE_RSTOUT		HDMI_CTRL_BASE(0x0080)
+
+/* PHY Control bit definition */
+
+/* HDMI_PHY_CON_0 */
+#define HDMI_PHY_POWER_OFF_EN		(1 << 0)
+
+/* Video related registers */
+#define HDMI_YMAX			HDMI_CORE_BASE(0x0060)
+#define HDMI_YMIN			HDMI_CORE_BASE(0x0064)
+#define HDMI_CMAX			HDMI_CORE_BASE(0x0068)
+#define HDMI_CMIN			HDMI_CORE_BASE(0x006C)
+
+#define HDMI_V2_BLANK_0			HDMI_CORE_BASE(0x00B0)
+#define HDMI_V2_BLANK_1			HDMI_CORE_BASE(0x00B4)
+#define HDMI_V1_BLANK_0			HDMI_CORE_BASE(0x00B8)
+#define HDMI_V1_BLANK_1			HDMI_CORE_BASE(0x00BC)
+
+#define HDMI_V_LINE_0			HDMI_CORE_BASE(0x00C0)
+#define HDMI_V_LINE_1			HDMI_CORE_BASE(0x00C4)
+#define HDMI_H_LINE_0			HDMI_CORE_BASE(0x00C8)
+#define HDMI_H_LINE_1			HDMI_CORE_BASE(0x00CC)
+
+#define HDMI_HSYNC_POL			HDMI_CORE_BASE(0x00E0)
+
+#define HDMI_V_BLANK_F0_0		HDMI_CORE_BASE(0x0110)
+#define HDMI_V_BLANK_F0_1		HDMI_CORE_BASE(0x0114)
+#define HDMI_V_BLANK_F1_0		HDMI_CORE_BASE(0x0118)
+#define HDMI_V_BLANK_F1_1		HDMI_CORE_BASE(0x011C)
+
+#define HDMI_H_SYNC_START_0		HDMI_CORE_BASE(0x0120)
+#define HDMI_H_SYNC_START_1		HDMI_CORE_BASE(0x0124)
+#define HDMI_H_SYNC_END_0		HDMI_CORE_BASE(0x0128)
+#define HDMI_H_SYNC_END_1		HDMI_CORE_BASE(0x012C)
+
+#define HDMI_V_SYNC_LINE_BEF_2_0	HDMI_CORE_BASE(0x0130)
+#define HDMI_V_SYNC_LINE_BEF_2_1	HDMI_CORE_BASE(0x0134)
+#define HDMI_V_SYNC_LINE_BEF_1_0	HDMI_CORE_BASE(0x0138)
+#define HDMI_V_SYNC_LINE_BEF_1_1	HDMI_CORE_BASE(0x013C)
+
+#define HDMI_V_SYNC_LINE_AFT_2_0	HDMI_CORE_BASE(0x0140)
+#define HDMI_V_SYNC_LINE_AFT_2_1	HDMI_CORE_BASE(0x0144)
+#define HDMI_V_SYNC_LINE_AFT_1_0	HDMI_CORE_BASE(0x0148)
+#define HDMI_V_SYNC_LINE_AFT_1_1	HDMI_CORE_BASE(0x014C)
+
+#define HDMI_V_SYNC_LINE_AFT_PXL_2_0	HDMI_CORE_BASE(0x0150)
+#define HDMI_V_SYNC_LINE_AFT_PXL_2_1	HDMI_CORE_BASE(0x0154)
+#define HDMI_V_SYNC_LINE_AFT_PXL_1_0	HDMI_CORE_BASE(0x0158)
+#define HDMI_V_SYNC_LINE_AFT_PXL_1_1	HDMI_CORE_BASE(0x015C)
+
+#define HDMI_V_BLANK_F2_0		HDMI_CORE_BASE(0x0160)
+#define HDMI_V_BLANK_F2_1		HDMI_CORE_BASE(0x0164)
+#define HDMI_V_BLANK_F3_0		HDMI_CORE_BASE(0x0168)
+#define HDMI_V_BLANK_F3_1		HDMI_CORE_BASE(0x016C)
+#define HDMI_V_BLANK_F4_0		HDMI_CORE_BASE(0x0170)
+#define HDMI_V_BLANK_F4_1		HDMI_CORE_BASE(0x0174)
+#define HDMI_V_BLANK_F5_0		HDMI_CORE_BASE(0x0178)
+#define HDMI_V_BLANK_F5_1		HDMI_CORE_BASE(0x017C)
+
+#define HDMI_V_SYNC_LINE_AFT_3_0	HDMI_CORE_BASE(0x0180)
+#define HDMI_V_SYNC_LINE_AFT_3_1	HDMI_CORE_BASE(0x0184)
+#define HDMI_V_SYNC_LINE_AFT_4_0	HDMI_CORE_BASE(0x0188)
+#define HDMI_V_SYNC_LINE_AFT_4_1	HDMI_CORE_BASE(0x018C)
+#define HDMI_V_SYNC_LINE_AFT_5_0	HDMI_CORE_BASE(0x0190)
+#define HDMI_V_SYNC_LINE_AFT_5_1	HDMI_CORE_BASE(0x0194)
+#define HDMI_V_SYNC_LINE_AFT_6_0	HDMI_CORE_BASE(0x0198)
+#define HDMI_V_SYNC_LINE_AFT_6_1	HDMI_CORE_BASE(0x019C)
+
+#define HDMI_V_SYNC_LINE_AFT_PXL_3_0	HDMI_CORE_BASE(0x01A0)
+#define HDMI_V_SYNC_LINE_AFT_PXL_3_1	HDMI_CORE_BASE(0x01A4)
+#define HDMI_V_SYNC_LINE_AFT_PXL_4_0	HDMI_CORE_BASE(0x01A8)
+#define HDMI_V_SYNC_LINE_AFT_PXL_4_1	HDMI_CORE_BASE(0x01AC)
+#define HDMI_V_SYNC_LINE_AFT_PXL_5_0	HDMI_CORE_BASE(0x01B0)
+#define HDMI_V_SYNC_LINE_AFT_PXL_5_1	HDMI_CORE_BASE(0x01B4)
+#define HDMI_V_SYNC_LINE_AFT_PXL_6_0	HDMI_CORE_BASE(0x01B8)
+#define HDMI_V_SYNC_LINE_AFT_PXL_6_1	HDMI_CORE_BASE(0x01BC)
+
+#define HDMI_VACT_SPACE_1_0		HDMI_CORE_BASE(0x01C0)
+#define HDMI_VACT_SPACE_1_1		HDMI_CORE_BASE(0x01C4)
+#define HDMI_VACT_SPACE_2_0		HDMI_CORE_BASE(0x01C8)
+#define HDMI_VACT_SPACE_2_1		HDMI_CORE_BASE(0x01CC)
+#define HDMI_VACT_SPACE_3_0		HDMI_CORE_BASE(0x01D0)
+#define HDMI_VACT_SPACE_3_1		HDMI_CORE_BASE(0x01D4)
+#define HDMI_VACT_SPACE_4_0		HDMI_CORE_BASE(0x01D8)
+#define HDMI_VACT_SPACE_4_1		HDMI_CORE_BASE(0x01DC)
+#define HDMI_VACT_SPACE_5_0		HDMI_CORE_BASE(0x01E0)
+#define HDMI_VACT_SPACE_5_1		HDMI_CORE_BASE(0x01E4)
+#define HDMI_VACT_SPACE_6_0		HDMI_CORE_BASE(0x01E8)
+#define HDMI_VACT_SPACE_6_1		HDMI_CORE_BASE(0x01EC)
+
+#define HDMI_GCP_CON			HDMI_CORE_BASE(0x0200)
+#define HDMI_GCP_BYTE1			HDMI_CORE_BASE(0x0210)
+#define HDMI_GCP_BYTE2			HDMI_CORE_BASE(0x0214)
+#define HDMI_GCP_BYTE3			HDMI_CORE_BASE(0x0218)
+
+/* Audio related registers */
+#define HDMI_ASP_CON			HDMI_CORE_BASE(0x0300)
+#define HDMI_ASP_SP_FLAT		HDMI_CORE_BASE(0x0304)
+#define HDMI_ASP_CHCFG0			HDMI_CORE_BASE(0x0310)
+#define HDMI_ASP_CHCFG1			HDMI_CORE_BASE(0x0314)
+#define HDMI_ASP_CHCFG2			HDMI_CORE_BASE(0x0318)
+#define HDMI_ASP_CHCFG3			HDMI_CORE_BASE(0x031C)
+
+#define HDMI_ACR_CON			HDMI_CORE_BASE(0x0400)
+#define HDMI_ACR_MCTS0			HDMI_CORE_BASE(0x0410)
+#define HDMI_ACR_MCTS1			HDMI_CORE_BASE(0x0414)
+#define HDMI_ACR_MCTS2			HDMI_CORE_BASE(0x0418)
+#define HDMI_ACR_CTS0			HDMI_CORE_BASE(0x0420)
+#define HDMI_ACR_CTS1			HDMI_CORE_BASE(0x0424)
+#define HDMI_ACR_CTS2			HDMI_CORE_BASE(0x0428)
+#define HDMI_ACR_N0			HDMI_CORE_BASE(0x0430)
+#define HDMI_ACR_N1			HDMI_CORE_BASE(0x0434)
+#define HDMI_ACR_N2			HDMI_CORE_BASE(0x0438)
+
+/* Packet related registers */
+#define HDMI_ACP_CON			HDMI_CORE_BASE(0x0500)
+#define HDMI_ACP_TYPE			HDMI_CORE_BASE(0x0514)
+#define HDMI_ACP_DATA(n)		HDMI_CORE_BASE(0x0520 + 4 * (n))
+
+#define HDMI_ISRC_CON			HDMI_CORE_BASE(0x0600)
+#define HDMI_ISRC1_HEADER1		HDMI_CORE_BASE(0x0614)
+#define HDMI_ISRC1_DATA(n)		HDMI_CORE_BASE(0x0620 + 4 * (n))
+#define HDMI_ISRC2_DATA(n)		HDMI_CORE_BASE(0x06A0 + 4 * (n))
+
+#define HDMI_AVI_CON			HDMI_CORE_BASE(0x0700)
+#define HDMI_AVI_HEADER0		HDMI_CORE_BASE(0x0710)
+#define HDMI_AVI_HEADER1		HDMI_CORE_BASE(0x0714)
+#define HDMI_AVI_HEADER2		HDMI_CORE_BASE(0x0718)
+#define HDMI_AVI_CHECK_SUM		HDMI_CORE_BASE(0x071C)
+#define HDMI_AVI_BYTE(n)		HDMI_CORE_BASE(0x0720 + 4 * (n-1))
+
+#define HDMI_AUI_CON			HDMI_CORE_BASE(0x0800)
+#define HDMI_AUI_HEADER0		HDMI_CORE_BASE(0x0810)
+#define HDMI_AUI_HEADER1		HDMI_CORE_BASE(0x0814)
+#define HDMI_AUI_HEADER2		HDMI_CORE_BASE(0x0818)
+#define HDMI_AUI_CHECK_SUM		HDMI_CORE_BASE(0x081C)
+#define HDMI_AUI_BYTE(n)		HDMI_CORE_BASE(0x0820 + 4 * (n-1))
+
+#define HDMI_MPG_CON			HDMI_CORE_BASE(0x0900)
+#define HDMI_MPG_CHECK_SUM		HDMI_CORE_BASE(0x091C)
+#define HDMI_MPG_DATA(n)		HDMI_CORE_BASE(0x0920 + 4 * (n))
+
+#define HDMI_SPD_CON			HDMI_CORE_BASE(0x0A00)
+#define HDMI_SPD_HEADER0		HDMI_CORE_BASE(0x0A10)
+#define HDMI_SPD_HEADER1		HDMI_CORE_BASE(0x0A14)
+#define HDMI_SPD_HEADER2		HDMI_CORE_BASE(0x0A18)
+#define HDMI_SPD_DATA(n)		HDMI_CORE_BASE(0x0A20 + 4 * (n))
+
+#define HDMI_GAMUT_CON			HDMI_CORE_BASE(0x0B00)
+#define HDMI_GAMUT_HEADER0		HDMI_CORE_BASE(0x0B10)
+#define HDMI_GAMUT_HEADER1		HDMI_CORE_BASE(0x0B14)
+#define HDMI_GAMUT_HEADER2		HDMI_CORE_BASE(0x0B18)
+#define HDMI_GAMUT_METADATA(n)		HDMI_CORE_BASE(0x0B20 + 4 * (n))
+
+#define HDMI_VSI_CON			HDMI_CORE_BASE(0x0C00)
+#define HDMI_VSI_HEADER0		HDMI_CORE_BASE(0x0C10)
+#define HDMI_VSI_HEADER1		HDMI_CORE_BASE(0x0C14)
+#define HDMI_VSI_HEADER2		HDMI_CORE_BASE(0x0C18)
+#define HDMI_VSI_DATA(n)		HDMI_CORE_BASE(0x0C20 + 4 * (n))
+
+#define HDMI_DC_CONTROL			HDMI_CORE_BASE(0x0D00)
+#define HDMI_VIDEO_PATTERN_GEN		HDMI_CORE_BASE(0x0D04)
+
+#define HDMI_AN_SEED_SEL		HDMI_CORE_BASE(0x0E48)
+#define HDMI_AN_SEED_0			HDMI_CORE_BASE(0x0E58)
+#define HDMI_AN_SEED_1			HDMI_CORE_BASE(0x0E5C)
+#define HDMI_AN_SEED_2			HDMI_CORE_BASE(0x0E60)
+#define HDMI_AN_SEED_3			HDMI_CORE_BASE(0x0E64)
+
+/* AVI bit definition */
+#define HDMI_AVI_CON_DO_NOT_TRANSMIT	(0 << 1)
+#define HDMI_AVI_CON_EVERY_VSYNC	(1 << 1)
+
+#define AVI_ACTIVE_FORMAT_VALID	(1 << 4)
+#define AVI_UNDERSCANNED_DISPLAY_VALID	(1 << 1)
+
+/* AUI bit definition */
+#define HDMI_AUI_CON_NO_TRAN		(0 << 0)
+
+/* VSI bit definition */
+#define HDMI_VSI_CON_DO_NOT_TRANSMIT	(0 << 0)
+
+/* HDCP related registers */
+#define HDMI_HDCP_SHA1(n)		HDMI_CORE_BASE(0x7000 + 4 * (n))
+#define HDMI_HDCP_KSV_LIST(n)		HDMI_CORE_BASE(0x7050 + 4 * (n))
+
+#define HDMI_HDCP_KSV_LIST_CON		HDMI_CORE_BASE(0x7064)
+#define HDMI_HDCP_SHA_RESULT		HDMI_CORE_BASE(0x7070)
+#define HDMI_HDCP_CTRL1			HDMI_CORE_BASE(0x7080)
+#define HDMI_HDCP_CTRL2			HDMI_CORE_BASE(0x7084)
+#define HDMI_HDCP_CHECK_RESULT		HDMI_CORE_BASE(0x7090)
+#define HDMI_HDCP_BKSV(n)		HDMI_CORE_BASE(0x70A0 + 4 * (n))
+#define HDMI_HDCP_AKSV(n)		HDMI_CORE_BASE(0x70C0 + 4 * (n))
+#define HDMI_HDCP_AN(n)			HDMI_CORE_BASE(0x70E0 + 4 * (n))
+
+#define HDMI_HDCP_BCAPS			HDMI_CORE_BASE(0x7100)
+#define HDMI_HDCP_BSTATUS_0		HDMI_CORE_BASE(0x7110)
+#define HDMI_HDCP_BSTATUS_1		HDMI_CORE_BASE(0x7114)
+#define HDMI_HDCP_RI_0			HDMI_CORE_BASE(0x7140)
+#define HDMI_HDCP_RI_1			HDMI_CORE_BASE(0x7144)
+#define HDMI_HDCP_I2C_INT		HDMI_CORE_BASE(0x7180)
+#define HDMI_HDCP_AN_INT		HDMI_CORE_BASE(0x7190)
+#define HDMI_HDCP_WDT_INT		HDMI_CORE_BASE(0x71A0)
+#define HDMI_HDCP_RI_INT		HDMI_CORE_BASE(0x71B0)
+#define HDMI_HDCP_RI_COMPARE_0		HDMI_CORE_BASE(0x71D0)
+#define HDMI_HDCP_RI_COMPARE_1		HDMI_CORE_BASE(0x71D4)
+#define HDMI_HDCP_FRAME_COUNT		HDMI_CORE_BASE(0x71E0)
+
+#define HDMI_RGB_ROUND_EN		HDMI_CORE_BASE(0xD500)
+#define HDMI_VACT_SPACE_R_0		HDMI_CORE_BASE(0xD504)
+#define HDMI_VACT_SPACE_R_1		HDMI_CORE_BASE(0xD508)
+#define HDMI_VACT_SPACE_G_0		HDMI_CORE_BASE(0xD50C)
+#define HDMI_VACT_SPACE_G_1		HDMI_CORE_BASE(0xD510)
+#define HDMI_VACT_SPACE_B_0		HDMI_CORE_BASE(0xD514)
+#define HDMI_VACT_SPACE_B_1		HDMI_CORE_BASE(0xD518)
+
+#define HDMI_BLUE_SCREEN_B_0		HDMI_CORE_BASE(0xD520)
+#define HDMI_BLUE_SCREEN_B_1		HDMI_CORE_BASE(0xD524)
+#define HDMI_BLUE_SCREEN_G_0		HDMI_CORE_BASE(0xD528)
+#define HDMI_BLUE_SCREEN_G_1		HDMI_CORE_BASE(0xD52C)
+#define HDMI_BLUE_SCREEN_R_0		HDMI_CORE_BASE(0xD530)
+#define HDMI_BLUE_SCREEN_R_1		HDMI_CORE_BASE(0xD534)
+
+/* HDMI I2S register */
+#define HDMI_I2S_CLK_CON		HDMI_I2S_BASE(0x000)
+#define HDMI_I2S_CON_1			HDMI_I2S_BASE(0x004)
+#define HDMI_I2S_CON_2			HDMI_I2S_BASE(0x008)
+#define HDMI_I2S_PIN_SEL_0		HDMI_I2S_BASE(0x00c)
+#define HDMI_I2S_PIN_SEL_1		HDMI_I2S_BASE(0x010)
+#define HDMI_I2S_PIN_SEL_2		HDMI_I2S_BASE(0x014)
+#define HDMI_I2S_PIN_SEL_3		HDMI_I2S_BASE(0x018)
+#define HDMI_I2S_DSD_CON		HDMI_I2S_BASE(0x01c)
+#define HDMI_I2S_MUX_CON		HDMI_I2S_BASE(0x020)
+#define HDMI_I2S_CH_ST_CON		HDMI_I2S_BASE(0x024)
+#define HDMI_I2S_CH_ST_0		HDMI_I2S_BASE(0x028)
+#define HDMI_I2S_CH_ST_1		HDMI_I2S_BASE(0x02c)
+#define HDMI_I2S_CH_ST_2		HDMI_I2S_BASE(0x030)
+#define HDMI_I2S_CH_ST_3		HDMI_I2S_BASE(0x034)
+#define HDMI_I2S_CH_ST_4		HDMI_I2S_BASE(0x038)
+#define HDMI_I2S_CH_ST_SH_0		HDMI_I2S_BASE(0x03c)
+#define HDMI_I2S_CH_ST_SH_1		HDMI_I2S_BASE(0x040)
+#define HDMI_I2S_CH_ST_SH_2		HDMI_I2S_BASE(0x044)
+#define HDMI_I2S_CH_ST_SH_3		HDMI_I2S_BASE(0x048)
+#define HDMI_I2S_CH_ST_SH_4		HDMI_I2S_BASE(0x04c)
+#define HDMI_I2S_MUX_CH			HDMI_I2S_BASE(0x054)
+#define HDMI_I2S_MUX_CUV		HDMI_I2S_BASE(0x058)
+
+/* I2S bit definition */
+
+/* I2S_CLK_CON */
+#define HDMI_I2S_CLK_DIS		(0)
+#define HDMI_I2S_CLK_EN			(1)
+
+/* I2S_CON_1 */
+#define HDMI_I2S_SCLK_FALLING_EDGE	(0 << 1)
+#define HDMI_I2S_SCLK_RISING_EDGE	(1 << 1)
+#define HDMI_I2S_L_CH_LOW_POL		(0)
+#define HDMI_I2S_L_CH_HIGH_POL		(1)
+
+/* I2S_CON_2 */
+#define HDMI_I2S_MSB_FIRST_MODE		(0 << 6)
+#define HDMI_I2S_LSB_FIRST_MODE		(1 << 6)
+#define HDMI_I2S_BIT_CH_32FS		(0 << 4)
+#define HDMI_I2S_BIT_CH_48FS		(1 << 4)
+#define HDMI_I2S_BIT_CH_RESERVED	(2 << 4)
+#define HDMI_I2S_SDATA_16BIT		(1 << 2)
+#define HDMI_I2S_SDATA_20BIT		(2 << 2)
+#define HDMI_I2S_SDATA_24BIT		(3 << 2)
+#define HDMI_I2S_BASIC_FORMAT		(0)
+#define HDMI_I2S_L_JUST_FORMAT		(2)
+#define HDMI_I2S_R_JUST_FORMAT		(3)
+#define HDMI_I2S_CON_2_CLR		(~(0xFF))
+#define HDMI_I2S_SET_BIT_CH(x)		(((x) & 0x7) << 4)
+#define HDMI_I2S_SET_SDATA_BIT(x)	(((x) & 0x7) << 2)
+
+/* I2S_PIN_SEL_0 */
+#define HDMI_I2S_SEL_SCLK(x)		(((x) & 0x7) << 4)
+#define HDMI_I2S_SEL_LRCK(x)		((x) & 0x7)
+
+/* I2S_PIN_SEL_1 */
+#define HDMI_I2S_SEL_SDATA1(x)		(((x) & 0x7) << 4)
+#define HDMI_I2S_SEL_SDATA2(x)		((x) & 0x7)
+
+/* I2S_PIN_SEL_2 */
+#define HDMI_I2S_SEL_SDATA3(x)		(((x) & 0x7) << 4)
+#define HDMI_I2S_SEL_SDATA2(x)		((x) & 0x7)
+
+/* I2S_PIN_SEL_3 */
+#define HDMI_I2S_SEL_DSD(x)		((x) & 0x7)
+
+/* I2S_DSD_CON */
+#define HDMI_I2S_DSD_CLK_RI_EDGE	(1 << 1)
+#define HDMI_I2S_DSD_CLK_FA_EDGE	(0 << 1)
+#define HDMI_I2S_DSD_ENABLE		(1)
+#define HDMI_I2S_DSD_DISABLE		(0)
+
+/* I2S_MUX_CON */
+#define HDMI_I2S_NOISE_FILTER_ZERO	(0 << 5)
+#define HDMI_I2S_NOISE_FILTER_2_STAGE	(1 << 5)
+#define HDMI_I2S_NOISE_FILTER_3_STAGE	(2 << 5)
+#define HDMI_I2S_NOISE_FILTER_4_STAGE	(3 << 5)
+#define HDMI_I2S_NOISE_FILTER_5_STAGE	(4 << 5)
+#define HDMI_I2S_IN_DISABLE		(1 << 4)
+#define HDMI_I2S_IN_ENABLE		(0 << 4)
+#define HDMI_I2S_AUD_SPDIF		(0 << 2)
+#define HDMI_I2S_AUD_I2S		(1 << 2)
+#define HDMI_I2S_AUD_DSD		(2 << 2)
+#define HDMI_I2S_CUV_SPDIF_ENABLE	(0 << 1)
+#define HDMI_I2S_CUV_I2S_ENABLE		(1 << 1)
+#define HDMI_I2S_MUX_DISABLE		(0)
+#define HDMI_I2S_MUX_ENABLE		(1)
+#define HDMI_I2S_MUX_CON_CLR		(~(0xFF))
+
+/* I2S_CH_ST_CON */
+#define HDMI_I2S_CH_STATUS_RELOAD	(1)
+#define HDMI_I2S_CH_ST_CON_CLR		(~(1))
+
+/* I2S_CH_ST_0 / I2S_CH_ST_SH_0 */
+#define HDMI_I2S_CH_STATUS_MODE_0	(0 << 6)
+#define HDMI_I2S_2AUD_CH_WITHOUT_PREEMPH	(0 << 3)
+#define HDMI_I2S_2AUD_CH_WITH_PREEMPH	(1 << 3)
+#define HDMI_I2S_DEFAULT_EMPHASIS	(0 << 3)
+#define HDMI_I2S_COPYRIGHT		(0 << 2)
+#define HDMI_I2S_NO_COPYRIGHT		(1 << 2)
+#define HDMI_I2S_LINEAR_PCM		(0 << 1)
+#define HDMI_I2S_NO_LINEAR_PCM		(1 << 1)
+#define HDMI_I2S_CONSUMER_FORMAT	(0)
+#define HDMI_I2S_PROF_FORMAT		(1)
+#define HDMI_I2S_CH_ST_0_CLR		(~(0xFF))
+
+/* I2S_CH_ST_1 / I2S_CH_ST_SH_1 */
+#define HDMI_I2S_CD_PLAYER		(0x00)
+#define HDMI_I2S_DAT_PLAYER		(0x03)
+#define HDMI_I2S_DCC_PLAYER		(0x43)
+#define HDMI_I2S_MINI_DISC_PLAYER	(0x49)
+
+/* I2S_CH_ST_2 / I2S_CH_ST_SH_2 */
+#define HDMI_I2S_CHANNEL_NUM_MASK	(0xF << 4)
+#define HDMI_I2S_SOURCE_NUM_MASK	(0xF)
+#define HDMI_I2S_SET_CHANNEL_NUM(x)	(((x) & (0xF)) << 4)
+#define HDMI_I2S_SET_SOURCE_NUM(x)	((x) & (0xF))
+
+/* I2S_CH_ST_3 / I2S_CH_ST_SH_3 */
+#define HDMI_I2S_CLK_ACCUR_LEVEL_1	(1 << 4)
+#define HDMI_I2S_CLK_ACCUR_LEVEL_2	(0 << 4)
+#define HDMI_I2S_CLK_ACCUR_LEVEL_3	(2 << 4)
+#define HDMI_I2S_SMP_FREQ_44_1		(0x0)
+#define HDMI_I2S_SMP_FREQ_48		(0x2)
+#define HDMI_I2S_SMP_FREQ_32		(0x3)
+#define HDMI_I2S_SMP_FREQ_96		(0xA)
+#define HDMI_I2S_SET_SMP_FREQ(x)	((x) & (0xF))
+
+/* I2S_CH_ST_4 / I2S_CH_ST_SH_4 */
+#define HDMI_I2S_ORG_SMP_FREQ_44_1	(0xF << 4)
+#define HDMI_I2S_ORG_SMP_FREQ_88_2	(0x7 << 4)
+#define HDMI_I2S_ORG_SMP_FREQ_22_05	(0xB << 4)
+#define HDMI_I2S_ORG_SMP_FREQ_176_4	(0x3 << 4)
+#define HDMI_I2S_WORD_LEN_NOT_DEFINE	(0x0 << 1)
+#define HDMI_I2S_WORD_LEN_MAX24_20BITS	(0x1 << 1)
+#define HDMI_I2S_WORD_LEN_MAX24_22BITS	(0x2 << 1)
+#define HDMI_I2S_WORD_LEN_MAX24_23BITS	(0x4 << 1)
+#define HDMI_I2S_WORD_LEN_MAX24_24BITS	(0x5 << 1)
+#define HDMI_I2S_WORD_LEN_MAX24_21BITS	(0x6 << 1)
+#define HDMI_I2S_WORD_LEN_MAX20_16BITS	(0x1 << 1)
+#define HDMI_I2S_WORD_LEN_MAX20_18BITS	(0x2 << 1)
+#define HDMI_I2S_WORD_LEN_MAX20_19BITS	(0x4 << 1)
+#define HDMI_I2S_WORD_LEN_MAX20_20BITS	(0x5 << 1)
+#define HDMI_I2S_WORD_LEN_MAX20_17BITS	(0x6 << 1)
+#define HDMI_I2S_WORD_LEN_MAX_24BITS	(1)
+#define HDMI_I2S_WORD_LEN_MAX_20BITS	(0)
+
+/* I2S_MUX_CH */
+#define HDMI_I2S_CH3_R_EN		(1 << 7)
+#define HDMI_I2S_CH3_L_EN		(1 << 6)
+#define HDMI_I2S_CH3_EN			(3 << 6)
+#define HDMI_I2S_CH2_R_EN		(1 << 5)
+#define HDMI_I2S_CH2_L_EN		(1 << 4)
+#define HDMI_I2S_CH2_EN			(3 << 4)
+#define HDMI_I2S_CH1_R_EN		(1 << 3)
+#define HDMI_I2S_CH1_L_EN		(1 << 2)
+#define HDMI_I2S_CH1_EN			(3 << 2)
+#define HDMI_I2S_CH0_R_EN		(1 << 1)
+#define HDMI_I2S_CH0_L_EN		(1)
+#define HDMI_I2S_CH0_EN			(3)
+#define HDMI_I2S_CH_ALL_EN		(0xFF)
+#define HDMI_I2S_MUX_CH_CLR		(~HDMI_I2S_CH_ALL_EN)
+
+/* I2S_MUX_CUV */
+#define HDMI_I2S_CUV_R_EN		(1 << 1)
+#define HDMI_I2S_CUV_L_EN		(1)
+#define HDMI_I2S_CUV_RL_EN		(0x03)
+
+/* I2S_CUV_L_R */
+#define HDMI_I2S_CUV_R_DATA_MASK	(0x7 << 4)
+#define HDMI_I2S_CUV_L_DATA_MASK	(0x7)
+
+/* Timing generator registers */
+/* TG configure/status registers */
+#define HDMI_TG_VACT_ST3_L		HDMI_TG_BASE(0x0068)
+#define HDMI_TG_VACT_ST3_H		HDMI_TG_BASE(0x006c)
+#define HDMI_TG_VACT_ST4_L		HDMI_TG_BASE(0x0070)
+#define HDMI_TG_VACT_ST4_H		HDMI_TG_BASE(0x0074)
+#define HDMI_TG_3D			HDMI_TG_BASE(0x00F0)
+
+/* HDMI PHY Registers Offsets*/
+#define HDMIPHY_POWER		(0x74 >> 2)
+#define HDMIPHY_MODE_SET_DONE		(0x7c >> 2)
+
+/* HDMI PHY Values */
+#define HDMI_PHY_POWER_ON              0x80
+#define HDMI_PHY_POWER_OFF             0xff
+
+/* HDMI PHY Values */
+#define HDMI_PHY_DISABLE_MODE_SET	0x80
+#define HDMI_PHY_ENABLE_MODE_SET	0x00
+
+/* PMU Registers for PHY */
+#define PMU_HDMI_PHY_CONTROL		0x700
+#define PMU_HDMI_PHY_ENABLE_BIT		BIT(0)
+
+#endif /* SAMSUNG_REGS_HDMI_H */
diff --git a/kernel/drivers/gpu/drm/exynos/regs-mixer.h b/kernel/drivers/gpu/drm/exynos/regs-mixer.h
new file mode 100644
index 000000000..ac60260c2
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-mixer.h
@@ -0,0 +1,152 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-mixer.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Mixer register header file for Samsung Mixer driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+#ifndef SAMSUNG_REGS_MIXER_H
+#define SAMSUNG_REGS_MIXER_H
+
+/*
+ * Register part
+ */
+#define MXR_STATUS			0x0000
+#define MXR_CFG				0x0004
+#define MXR_INT_EN			0x0008
+#define MXR_INT_STATUS			0x000C
+#define MXR_LAYER_CFG			0x0010
+#define MXR_VIDEO_CFG			0x0014
+#define MXR_GRAPHIC0_CFG		0x0020
+#define MXR_GRAPHIC0_BASE		0x0024
+#define MXR_GRAPHIC0_SPAN		0x0028
+#define MXR_GRAPHIC0_SXY		0x002C
+#define MXR_GRAPHIC0_WH			0x0030
+#define MXR_GRAPHIC0_DXY		0x0034
+#define MXR_GRAPHIC0_BLANK		0x0038
+#define MXR_GRAPHIC1_CFG		0x0040
+#define MXR_GRAPHIC1_BASE		0x0044
+#define MXR_GRAPHIC1_SPAN		0x0048
+#define MXR_GRAPHIC1_SXY		0x004C
+#define MXR_GRAPHIC1_WH			0x0050
+#define MXR_GRAPHIC1_DXY		0x0054
+#define MXR_GRAPHIC1_BLANK		0x0058
+#define MXR_BG_CFG			0x0060
+#define MXR_BG_COLOR0			0x0064
+#define MXR_BG_COLOR1			0x0068
+#define MXR_BG_COLOR2			0x006C
+#define MXR_CM_COEFF_Y			0x0080
+#define MXR_CM_COEFF_CB			0x0084
+#define MXR_CM_COEFF_CR			0x0088
+#define MXR_MO				0x0304
+#define MXR_RESOLUTION			0x0310
+
+#define MXR_GRAPHIC0_BASE_S		0x2024
+#define MXR_GRAPHIC1_BASE_S		0x2044
+
+/* for parametrized access to layer registers */
+#define MXR_GRAPHIC_CFG(i)		(0x0020 + (i) * 0x20)
+#define MXR_GRAPHIC_BASE(i)		(0x0024 + (i) * 0x20)
+#define MXR_GRAPHIC_SPAN(i)		(0x0028 + (i) * 0x20)
+#define MXR_GRAPHIC_SXY(i)		(0x002C + (i) * 0x20)
+#define MXR_GRAPHIC_WH(i)		(0x0030 + (i) * 0x20)
+#define MXR_GRAPHIC_DXY(i)		(0x0034 + (i) * 0x20)
+#define MXR_GRAPHIC_BLANK(i)		(0x0038 + (i) * 0x20)
+#define MXR_GRAPHIC_BASE_S(i)		(0x2024 + (i) * 0x20)
+
+/*
+ * Bit definition part
+ */
+
+/* generates mask for range of bits */
+#define MXR_MASK(high_bit, low_bit) \
+	(((2 << ((high_bit) - (low_bit))) - 1) << (low_bit))
+
+#define MXR_MASK_VAL(val, high_bit, low_bit) \
+	(((val) << (low_bit)) & MXR_MASK(high_bit, low_bit))
+
+/* bits for MXR_STATUS */
+#define MXR_STATUS_SOFT_RESET		(1 << 8)
+#define MXR_STATUS_16_BURST		(1 << 7)
+#define MXR_STATUS_BURST_MASK		(1 << 7)
+#define MXR_STATUS_BIG_ENDIAN		(1 << 3)
+#define MXR_STATUS_ENDIAN_MASK		(1 << 3)
+#define MXR_STATUS_SYNC_ENABLE		(1 << 2)
+#define MXR_STATUS_REG_IDLE		(1 << 1)
+#define MXR_STATUS_REG_RUN		(1 << 0)
+
+/* bits for MXR_CFG */
+#define MXR_CFG_LAYER_UPDATE		(1 << 31)
+#define MXR_CFG_LAYER_UPDATE_COUNT_MASK (3 << 29)
+#define MXR_CFG_RGB601_0_255		(0 << 9)
+#define MXR_CFG_RGB601_16_235		(1 << 9)
+#define MXR_CFG_RGB709_0_255		(2 << 9)
+#define MXR_CFG_RGB709_16_235		(3 << 9)
+#define MXR_CFG_RGB_FMT_MASK		0x600
+#define MXR_CFG_OUT_YUV444		(0 << 8)
+#define MXR_CFG_OUT_RGB888		(1 << 8)
+#define MXR_CFG_OUT_MASK		(1 << 8)
+#define MXR_CFG_DST_SDO			(0 << 7)
+#define MXR_CFG_DST_HDMI		(1 << 7)
+#define MXR_CFG_DST_MASK		(1 << 7)
+#define MXR_CFG_SCAN_HD_720		(0 << 6)
+#define MXR_CFG_SCAN_HD_1080		(1 << 6)
+#define MXR_CFG_GRP1_ENABLE		(1 << 5)
+#define MXR_CFG_GRP0_ENABLE		(1 << 4)
+#define MXR_CFG_VP_ENABLE		(1 << 3)
+#define MXR_CFG_SCAN_INTERLACE		(0 << 2)
+#define MXR_CFG_SCAN_PROGRESSIVE	(1 << 2)
+#define MXR_CFG_SCAN_NTSC		(0 << 1)
+#define MXR_CFG_SCAN_PAL		(1 << 1)
+#define MXR_CFG_SCAN_SD			(0 << 0)
+#define MXR_CFG_SCAN_HD			(1 << 0)
+#define MXR_CFG_SCAN_MASK		0x47
+
+/* bits for MXR_GRAPHICn_CFG */
+#define MXR_GRP_CFG_COLOR_KEY_DISABLE	(1 << 21)
+#define MXR_GRP_CFG_BLEND_PRE_MUL	(1 << 20)
+#define MXR_GRP_CFG_WIN_BLEND_EN	(1 << 17)
+#define MXR_GRP_CFG_PIXEL_BLEND_EN	(1 << 16)
+#define MXR_GRP_CFG_FORMAT_VAL(x)	MXR_MASK_VAL(x, 11, 8)
+#define MXR_GRP_CFG_FORMAT_MASK		MXR_GRP_CFG_FORMAT_VAL(~0)
+#define MXR_GRP_CFG_ALPHA_VAL(x)	MXR_MASK_VAL(x, 7, 0)
+
+/* bits for MXR_GRAPHICn_WH */
+#define MXR_GRP_WH_H_SCALE(x)		MXR_MASK_VAL(x, 28, 28)
+#define MXR_GRP_WH_V_SCALE(x)		MXR_MASK_VAL(x, 12, 12)
+#define MXR_GRP_WH_WIDTH(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_WH_HEIGHT(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_RESOLUTION */
+#define MXR_MXR_RES_HEIGHT(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_MXR_RES_WIDTH(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_GRAPHICn_SXY */
+#define MXR_GRP_SXY_SX(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_SXY_SY(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_GRAPHICn_DXY */
+#define MXR_GRP_DXY_DX(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_DXY_DY(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_INT_EN */
+#define MXR_INT_EN_VSYNC		(1 << 11)
+#define MXR_INT_EN_ALL			(0x0f << 8)
+
+/* bit for MXR_INT_STATUS */
+#define MXR_INT_CLEAR_VSYNC		(1 << 11)
+#define MXR_INT_STATUS_VSYNC		(1 << 0)
+
+/* bit for MXR_LAYER_CFG */
+#define MXR_LAYER_CFG_GRP1_VAL(x)	MXR_MASK_VAL(x, 11, 8)
+#define MXR_LAYER_CFG_GRP0_VAL(x)	MXR_MASK_VAL(x, 7, 4)
+#define MXR_LAYER_CFG_VP_VAL(x)		MXR_MASK_VAL(x, 3, 0)
+
+#endif /* SAMSUNG_REGS_MIXER_H */
+
diff --git a/kernel/drivers/gpu/drm/exynos/regs-rotator.h b/kernel/drivers/gpu/drm/exynos/regs-rotator.h
new file mode 100644
index 000000000..a09ac6e18
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-rotator.h
@@ -0,0 +1,73 @@
+/* drivers/gpu/drm/exynos/regs-rotator.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Register definition file for Samsung Rotator Interface (Rotator) driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef EXYNOS_REGS_ROTATOR_H
+#define EXYNOS_REGS_ROTATOR_H
+
+/* Configuration */
+#define ROT_CONFIG			0x00
+#define ROT_CONFIG_IRQ			(3 << 8)
+
+/* Image Control */
+#define ROT_CONTROL			0x10
+#define ROT_CONTROL_PATTERN_WRITE	(1 << 16)
+#define ROT_CONTROL_FMT_YCBCR420_2P	(1 << 8)
+#define ROT_CONTROL_FMT_RGB888		(6 << 8)
+#define ROT_CONTROL_FMT_MASK		(7 << 8)
+#define ROT_CONTROL_FLIP_VERTICAL	(2 << 6)
+#define ROT_CONTROL_FLIP_HORIZONTAL	(3 << 6)
+#define ROT_CONTROL_FLIP_MASK		(3 << 6)
+#define ROT_CONTROL_ROT_90		(1 << 4)
+#define ROT_CONTROL_ROT_180		(2 << 4)
+#define ROT_CONTROL_ROT_270		(3 << 4)
+#define ROT_CONTROL_ROT_MASK		(3 << 4)
+#define ROT_CONTROL_START		(1 << 0)
+
+/* Status */
+#define ROT_STATUS			0x20
+#define ROT_STATUS_IRQ_PENDING(x)	(1 << (x))
+#define ROT_STATUS_IRQ(x)		(((x) >> 8) & 0x3)
+#define ROT_STATUS_IRQ_VAL_COMPLETE	1
+#define ROT_STATUS_IRQ_VAL_ILLEGAL	2
+
+/* Buffer Address */
+#define ROT_SRC_BUF_ADDR(n)		(0x30 + ((n) << 2))
+#define ROT_DST_BUF_ADDR(n)		(0x50 + ((n) << 2))
+
+/* Buffer Size */
+#define ROT_SRC_BUF_SIZE		0x3c
+#define ROT_DST_BUF_SIZE		0x5c
+#define ROT_SET_BUF_SIZE_H(x)		((x) << 16)
+#define ROT_SET_BUF_SIZE_W(x)		((x) << 0)
+#define ROT_GET_BUF_SIZE_H(x)		((x) >> 16)
+#define ROT_GET_BUF_SIZE_W(x)		((x) & 0xffff)
+
+/* Crop Position */
+#define ROT_SRC_CROP_POS		0x40
+#define ROT_DST_CROP_POS		0x60
+#define ROT_CROP_POS_Y(x)		((x) << 16)
+#define ROT_CROP_POS_X(x)		((x) << 0)
+
+/* Source Crop Size */
+#define ROT_SRC_CROP_SIZE		0x44
+#define ROT_SRC_CROP_SIZE_H(x)		((x) << 16)
+#define ROT_SRC_CROP_SIZE_W(x)		((x) << 0)
+
+/* Round to nearest aligned value */
+#define ROT_ALIGN(x, align, mask)	(((x) + (1 << ((align) - 1))) & (mask))
+/* Minimum limit value */
+#define ROT_MIN(min, mask)		(((min) + ~(mask)) & (mask))
+/* Maximum limit value */
+#define ROT_MAX(max, mask)		((max) & (mask))
+
+#endif /* EXYNOS_REGS_ROTATOR_H */
+
diff --git a/kernel/drivers/gpu/drm/exynos/regs-vp.h b/kernel/drivers/gpu/drm/exynos/regs-vp.h
new file mode 100644
index 000000000..10b737af0
--- /dev/null
+++ b/kernel/drivers/gpu/drm/exynos/regs-vp.h
@@ -0,0 +1,91 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-vp.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Video processor register header file for Samsung Mixer driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SAMSUNG_REGS_VP_H
+#define SAMSUNG_REGS_VP_H
+
+/*
+ * Register part
+ */
+
+#define VP_ENABLE			0x0000
+#define VP_SRESET			0x0004
+#define VP_SHADOW_UPDATE		0x0008
+#define VP_FIELD_ID			0x000C
+#define VP_MODE				0x0010
+#define VP_IMG_SIZE_Y			0x0014
+#define VP_IMG_SIZE_C			0x0018
+#define VP_PER_RATE_CTRL		0x001C
+#define VP_TOP_Y_PTR			0x0028
+#define VP_BOT_Y_PTR			0x002C
+#define VP_TOP_C_PTR			0x0030
+#define VP_BOT_C_PTR			0x0034
+#define VP_ENDIAN_MODE			0x03CC
+#define VP_SRC_H_POSITION		0x0044
+#define VP_SRC_V_POSITION		0x0048
+#define VP_SRC_WIDTH			0x004C
+#define VP_SRC_HEIGHT			0x0050
+#define VP_DST_H_POSITION		0x0054
+#define VP_DST_V_POSITION		0x0058
+#define VP_DST_WIDTH			0x005C
+#define VP_DST_HEIGHT			0x0060
+#define VP_H_RATIO			0x0064
+#define VP_V_RATIO			0x0068
+#define VP_POLY8_Y0_LL			0x006C
+#define VP_POLY4_Y0_LL			0x00EC
+#define VP_POLY4_C0_LL			0x012C
+
+/*
+ * Bit definition part
+ */
+
+/* generates mask for range of bits */
+
+#define VP_MASK(high_bit, low_bit) \
+	(((2 << ((high_bit) - (low_bit))) - 1) << (low_bit))
+
+#define VP_MASK_VAL(val, high_bit, low_bit) \
+	(((val) << (low_bit)) & VP_MASK(high_bit, low_bit))
+
+ /* VP_ENABLE */
+#define VP_ENABLE_ON			(1 << 0)
+
+/* VP_SRESET */
+#define VP_SRESET_PROCESSING		(1 << 0)
+
+/* VP_SHADOW_UPDATE */
+#define VP_SHADOW_UPDATE_ENABLE		(1 << 0)
+
+/* VP_MODE */
+#define VP_MODE_NV12			(0 << 6)
+#define VP_MODE_NV21			(1 << 6)
+#define VP_MODE_LINE_SKIP		(1 << 5)
+#define VP_MODE_MEM_LINEAR		(0 << 4)
+#define VP_MODE_MEM_TILED		(1 << 4)
+#define VP_MODE_FMT_MASK		(5 << 4)
+#define VP_MODE_FIELD_ID_AUTO_TOGGLING	(1 << 2)
+#define VP_MODE_2D_IPC			(1 << 1)
+
+/* VP_IMG_SIZE_Y */
+/* VP_IMG_SIZE_C */
+#define VP_IMG_HSIZE(x)			VP_MASK_VAL(x, 29, 16)
+#define VP_IMG_VSIZE(x)			VP_MASK_VAL(x, 13, 0)
+
+/* VP_SRC_H_POSITION */
+#define VP_SRC_H_POSITION_VAL(x)	VP_MASK_VAL(x, 14, 4)
+
+/* VP_ENDIAN_MODE */
+#define VP_ENDIAN_MODE_LITTLE		(1 << 0)
+
+#endif /* SAMSUNG_REGS_VP_H */
-- 
cgit 1.2.3-korg