These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

8 files changed, 90 insertions, 124 deletions

diff --git a/kernel/drivers/gpu/drm/imx/dw_hdmi-imx.c b/kernel/drivers/gpu/drm/imx/dw_hdmi-imx.c
index a3ecf1069..98605ea2a 100644
--- a/kernel/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/kernel/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -48,11 +48,17 @@ static const struct dw_hdmi_mpll_config imx_mpll_cfg[] = {
 			{ 0x40a2, 0x000a },
 		},
 	}, {
-		~0UL, {
+		216000000, {
 			{ 0x00a0, 0x000a },
 			{ 0x2001, 0x000f },
 			{ 0x4002, 0x000f },
 		},
+	}, {
+		~0UL, {
+			{ 0x0000, 0x0000 },
+			{ 0x0000, 0x0000 },
+			{ 0x0000, 0x0000 },
+		},
 	}
 };
 
@@ -75,9 +81,14 @@ static const struct dw_hdmi_curr_ctrl imx_cur_ctr[] = {
 	},
 };
 
+/*
+ * Resistance term 133Ohm Cfg
+ * PREEMP config 0.00
+ * TX/CK level 10
+ */
 static const struct dw_hdmi_phy_config imx_phy_config[] = {
 	/*pixelclk   symbol   term   vlev */
-	{ 148500000, 0x800d, 0x0005, 0x01ad},
+	{ 216000000, 0x800d, 0x0005, 0x01ad},
 	{ ~0UL,      0x0000, 0x0000, 0x0000}
 };
 
@@ -143,7 +154,8 @@ static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
 {
 	if (mode->clock < 13500)
 		return MODE_CLOCK_LOW;
-	if (mode->clock > 266000)
+	/* FIXME: Hardware is capable of 266MHz, but setup data is missing. */
+	if (mode->clock > 216000)
 		return MODE_CLOCK_HIGH;
 
 	return MODE_OK;
@@ -154,7 +166,8 @@ static enum drm_mode_status imx6dl_hdmi_mode_valid(struct drm_connector *con,
 {
 	if (mode->clock < 13500)
 		return MODE_CLOCK_LOW;
-	if (mode->clock > 270000)
+	/* FIXME: Hardware is capable of 270MHz, but setup data is missing. */
+	if (mode->clock > 216000)
 		return MODE_CLOCK_HIGH;
 
 	return MODE_OK;
diff --git a/kernel/drivers/gpu/drm/imx/imx-drm-core.c b/kernel/drivers/gpu/drm/imx/imx-drm-core.c
index 74f505b0d..7b990b4e9 100644
--- a/kernel/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/kernel/drivers/gpu/drm/imx/imx-drm-core.c
@@ -63,8 +63,7 @@ static void imx_drm_driver_lastclose(struct drm_device *drm)
 #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER)
 	struct imx_drm_device *imxdrm = drm->dev_private;
 
-	if (imxdrm->fbhelper)
-		drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
+	drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
 #endif
 }
 
@@ -145,10 +144,10 @@ void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc)
 }
 EXPORT_SYMBOL_GPL(imx_drm_handle_vblank);
 
-static int imx_drm_enable_vblank(struct drm_device *drm, int crtc)
+static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe)
 {
 	struct imx_drm_device *imxdrm = drm->dev_private;
-	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[crtc];
+	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe];
 	int ret;
 
 	if (!imx_drm_crtc)
@@ -163,10 +162,10 @@ static int imx_drm_enable_vblank(struct drm_device *drm, int crtc)
 	return ret;
 }
 
-static void imx_drm_disable_vblank(struct drm_device *drm, int crtc)
+static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe)
 {
 	struct imx_drm_device *imxdrm = drm->dev_private;
-	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[crtc];
+	struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe];
 
 	if (!imx_drm_crtc)
 		return;
@@ -340,7 +339,7 @@ err_kms:
  * imx_drm_add_crtc - add a new crtc
  */
 int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
-		struct imx_drm_crtc **new_crtc,
+		struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane,
 		const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs,
 		struct device_node *port)
 {
@@ -379,7 +378,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
 	drm_crtc_helper_add(crtc,
 			imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs);
 
-	drm_crtc_init(drm, crtc,
+	drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL,
 			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs);
 
 	return 0;
@@ -487,7 +486,7 @@ static struct drm_driver imx_drm_driver = {
 	.gem_prime_vmap		= drm_gem_cma_prime_vmap,
 	.gem_prime_vunmap	= drm_gem_cma_prime_vunmap,
 	.gem_prime_mmap		= drm_gem_cma_prime_mmap,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= imx_drm_enable_vblank,
 	.disable_vblank		= imx_drm_disable_vblank,
 	.ioctls			= imx_drm_ioctls,
@@ -531,59 +530,12 @@ static const struct component_master_ops imx_drm_ops = {
 
 static int imx_drm_platform_probe(struct platform_device *pdev)
 {
-	struct device_node *ep, *port, *remote;
-	struct component_match *match = NULL;
-	int ret;
-	int i;
-
-	/*
-	 * Bind the IPU display interface ports first, so that
-	 * imx_drm_encoder_parse_of called from encoder .bind callbacks
-	 * works as expected.
-	 */
-	for (i = 0; ; i++) {
-		port = of_parse_phandle(pdev->dev.of_node, "ports", i);
-		if (!port)
-			break;
-
-		component_match_add(&pdev->dev, &match, compare_of, port);
-	}
+	int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);
 
-	if (i == 0) {
-		dev_err(&pdev->dev, "missing 'ports' property\n");
-		return -ENODEV;
-	}
-
-	/* Then bind all encoders */
-	for (i = 0; ; i++) {
-		port = of_parse_phandle(pdev->dev.of_node, "ports", i);
-		if (!port)
-			break;
-
-		for_each_child_of_node(port, ep) {
-			remote = of_graph_get_remote_port_parent(ep);
-			if (!remote || !of_device_is_available(remote)) {
-				of_node_put(remote);
-				continue;
-			} else if (!of_device_is_available(remote->parent)) {
-				dev_warn(&pdev->dev, "parent device of %s is not available\n",
-					 remote->full_name);
-				of_node_put(remote);
-				continue;
-			}
-
-			component_match_add(&pdev->dev, &match, compare_of,
-					    remote);
-			of_node_put(remote);
-		}
-		of_node_put(port);
-	}
-
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-	if (ret)
-		return ret;
+	if (!ret)
+		ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 
-	return component_master_add_with_match(&pdev->dev, &imx_drm_ops, match);
+	return ret;
 }
 
 static int imx_drm_platform_remove(struct platform_device *pdev)
diff --git a/kernel/drivers/gpu/drm/imx/imx-drm.h b/kernel/drivers/gpu/drm/imx/imx-drm.h
index 28e776d8d..83284b4d4 100644
--- a/kernel/drivers/gpu/drm/imx/imx-drm.h
+++ b/kernel/drivers/gpu/drm/imx/imx-drm.h
@@ -9,6 +9,7 @@ struct drm_display_mode;
 struct drm_encoder;
 struct drm_fbdev_cma;
 struct drm_framebuffer;
+struct drm_plane;
 struct imx_drm_crtc;
 struct platform_device;
 
@@ -24,7 +25,7 @@ struct imx_drm_crtc_helper_funcs {
 };
 
 int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
-		struct imx_drm_crtc **new_crtc,
+		struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane,
 		const struct imx_drm_crtc_helper_funcs *imx_helper_funcs,
 		struct device_node *port);
 int imx_drm_remove_crtc(struct imx_drm_crtc *);
diff --git a/kernel/drivers/gpu/drm/imx/imx-tve.c b/kernel/drivers/gpu/drm/imx/imx-tve.c
index 214eceefc..f9597146d 100644
--- a/kernel/drivers/gpu/drm/imx/imx-tve.c
+++ b/kernel/drivers/gpu/drm/imx/imx-tve.c
@@ -301,7 +301,7 @@ static void imx_tve_encoder_prepare(struct drm_encoder *encoder)
 
 	switch (tve->mode) {
 	case TVE_MODE_VGA:
-		imx_drm_set_bus_format_pins(encoder, MEDIA_BUS_FMT_YUV8_1X24,
+		imx_drm_set_bus_format_pins(encoder, MEDIA_BUS_FMT_GBR888_1X24,
 					    tve->hsync_pin, tve->vsync_pin);
 		break;
 	case TVE_MODE_TVOUT:
@@ -721,6 +721,7 @@ static const struct of_device_id imx_tve_dt_ids[] = {
 	{ .compatible = "fsl,imx53-tve", },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, imx_tve_dt_ids);
 
 static struct platform_driver imx_tve_driver = {
 	.probe		= imx_tve_probe,
diff --git a/kernel/drivers/gpu/drm/imx/ipuv3-crtc.c b/kernel/drivers/gpu/drm/imx/ipuv3-crtc.c
index 7bc8301fa..4ab841eeb 100644
--- a/kernel/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/kernel/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -212,7 +212,8 @@ static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
 
 	spin_lock_irqsave(&drm->event_lock, flags);
 	if (ipu_crtc->page_flip_event)
-		drm_send_vblank_event(drm, -1, ipu_crtc->page_flip_event);
+		drm_crtc_send_vblank_event(&ipu_crtc->base,
+					   ipu_crtc->page_flip_event);
 	ipu_crtc->page_flip_event = NULL;
 	imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);
 	spin_unlock_irqrestore(&drm->event_lock, flags);
@@ -349,7 +350,6 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
 	int dp = -EINVAL;
 	int ret;
-	int id;
 
 	ret = ipu_get_resources(ipu_crtc, pdata);
 	if (ret) {
@@ -358,18 +358,23 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 		return ret;
 	}
 
+	if (pdata->dp >= 0)
+		dp = IPU_DP_FLOW_SYNC_BG;
+	ipu_crtc->plane[0] = ipu_plane_init(drm, ipu, pdata->dma[0], dp, 0,
+					    DRM_PLANE_TYPE_PRIMARY);
+	if (IS_ERR(ipu_crtc->plane[0])) {
+		ret = PTR_ERR(ipu_crtc->plane[0]);
+		goto err_put_resources;
+	}
+
 	ret = imx_drm_add_crtc(drm, &ipu_crtc->base, &ipu_crtc->imx_crtc,
-			&ipu_crtc_helper_funcs, ipu_crtc->dev->of_node);
+			&ipu_crtc->plane[0]->base, &ipu_crtc_helper_funcs,
+			ipu_crtc->dev->of_node);
 	if (ret) {
 		dev_err(ipu_crtc->dev, "adding crtc failed with %d.\n", ret);
 		goto err_put_resources;
 	}
 
-	if (pdata->dp >= 0)
-		dp = IPU_DP_FLOW_SYNC_BG;
-	id = imx_drm_crtc_id(ipu_crtc->imx_crtc);
-	ipu_crtc->plane[0] = ipu_plane_init(ipu_crtc->base.dev, ipu,
-					    pdata->dma[0], dp, BIT(id), true);
 	ret = ipu_plane_get_resources(ipu_crtc->plane[0]);
 	if (ret) {
 		dev_err(ipu_crtc->dev, "getting plane 0 resources failed with %d.\n",
@@ -379,10 +384,10 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 
 	/* If this crtc is using the DP, add an overlay plane */
 	if (pdata->dp >= 0 && pdata->dma[1] > 0) {
-		ipu_crtc->plane[1] = ipu_plane_init(ipu_crtc->base.dev, ipu,
-						    pdata->dma[1],
-						    IPU_DP_FLOW_SYNC_FG,
-						    BIT(id), false);
+		ipu_crtc->plane[1] = ipu_plane_init(drm, ipu, pdata->dma[1],
+						IPU_DP_FLOW_SYNC_FG,
+						drm_crtc_mask(&ipu_crtc->base),
+						DRM_PLANE_TYPE_OVERLAY);
 		if (IS_ERR(ipu_crtc->plane[1]))
 			ipu_crtc->plane[1] = NULL;
 	}
@@ -407,28 +412,6 @@ err_put_resources:
 	return ret;
 }
 
-static struct device_node *ipu_drm_get_port_by_id(struct device_node *parent,
-						  int port_id)
-{
-	struct device_node *port;
-	int id, ret;
-
-	port = of_get_child_by_name(parent, "port");
-	while (port) {
-		ret = of_property_read_u32(port, "reg", &id);
-		if (!ret && id == port_id)
-			return port;
-
-		do {
-			port = of_get_next_child(parent, port);
-			if (!port)
-				return NULL;
-		} while (of_node_cmp(port->name, "port"));
-	}
-
-	return NULL;
-}
-
 static int ipu_drm_bind(struct device *dev, struct device *master, void *data)
 {
 	struct ipu_client_platformdata *pdata = dev->platform_data;
@@ -470,23 +453,11 @@ static const struct component_ops ipu_crtc_ops = {
 static int ipu_drm_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct ipu_client_platformdata *pdata = dev->platform_data;
 	int ret;
 
 	if (!dev->platform_data)
 		return -EINVAL;
 
-	if (!dev->of_node) {
-		/* Associate crtc device with the corresponding DI port node */
-		dev->of_node = ipu_drm_get_port_by_id(dev->parent->of_node,
-						      pdata->di + 2);
-		if (!dev->of_node) {
-			dev_err(dev, "missing port@%d node in %s\n",
-				pdata->di + 2, dev->parent->of_node->full_name);
-			return -ENODEV;
-		}
-	}
-
 	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
diff --git a/kernel/drivers/gpu/drm/imx/ipuv3-plane.c b/kernel/drivers/gpu/drm/imx/ipuv3-plane.c
index 878a643d7..e2ff410ba 100644
--- a/kernel/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/kernel/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -23,12 +23,21 @@
 #define to_ipu_plane(x)	container_of(x, struct ipu_plane, base)
 
 static const uint32_t ipu_plane_formats[] = {
+	DRM_FORMAT_ARGB1555,
 	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_ABGR1555,
 	DRM_FORMAT_XBGR1555,
+	DRM_FORMAT_RGBA5551,
+	DRM_FORMAT_BGRA5551,
+	DRM_FORMAT_ARGB4444,
 	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ABGR8888,
 	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGBA8888,
+	DRM_FORMAT_RGBX8888,
+	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_BGRA8888,
 	DRM_FORMAT_YUYV,
 	DRM_FORMAT_YVYU,
 	DRM_FORMAT_YUV420,
@@ -175,8 +184,15 @@ int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc,
 		ipu_dp_set_window_pos(ipu_plane->dp, crtc_x, crtc_y);
 		/* Enable local alpha on partial plane */
 		switch (fb->pixel_format) {
+		case DRM_FORMAT_ARGB1555:
+		case DRM_FORMAT_ABGR1555:
+		case DRM_FORMAT_RGBA5551:
+		case DRM_FORMAT_BGRA5551:
+		case DRM_FORMAT_ARGB4444:
 		case DRM_FORMAT_ARGB8888:
 		case DRM_FORMAT_ABGR8888:
+		case DRM_FORMAT_RGBA8888:
+		case DRM_FORMAT_BGRA8888:
 			ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);
 			break;
 		default:
@@ -365,7 +381,7 @@ static struct drm_plane_funcs ipu_plane_funcs = {
 
 struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 				 int dma, int dp, unsigned int possible_crtcs,
-				 bool priv)
+				 enum drm_plane_type type)
 {
 	struct ipu_plane *ipu_plane;
 	int ret;
@@ -383,10 +399,9 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 	ipu_plane->dma = dma;
 	ipu_plane->dp_flow = dp;
 
-	ret = drm_plane_init(dev, &ipu_plane->base, possible_crtcs,
-			     &ipu_plane_funcs, ipu_plane_formats,
-			     ARRAY_SIZE(ipu_plane_formats),
-			     priv);
+	ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs,
+				       &ipu_plane_funcs, ipu_plane_formats,
+				       ARRAY_SIZE(ipu_plane_formats), type);
 	if (ret) {
 		DRM_ERROR("failed to initialize plane\n");
 		kfree(ipu_plane);
diff --git a/kernel/drivers/gpu/drm/imx/ipuv3-plane.h b/kernel/drivers/gpu/drm/imx/ipuv3-plane.h
index 9b5eff18f..3a443b413 100644
--- a/kernel/drivers/gpu/drm/imx/ipuv3-plane.h
+++ b/kernel/drivers/gpu/drm/imx/ipuv3-plane.h
@@ -34,7 +34,7 @@ struct ipu_plane {
 
 struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 				 int dma, int dp, unsigned int possible_crtcs,
-				 bool priv);
+				 enum drm_plane_type type);
 
 /* Init IDMAC, DMFC, DP */
 int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc,
diff --git a/kernel/drivers/gpu/drm/imx/parallel-display.c b/kernel/drivers/gpu/drm/imx/parallel-display.c
index 74a9ce40d..2e9b9f1b5 100644
--- a/kernel/drivers/gpu/drm/imx/parallel-display.c
+++ b/kernel/drivers/gpu/drm/imx/parallel-display.c
@@ -21,6 +21,7 @@
 #include <drm/drm_panel.h>
 #include <linux/videodev2.h>
 #include <video/of_display_timing.h>
+#include <linux/of_graph.h>
 
 #include "imx-drm.h"
 
@@ -53,7 +54,11 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
 
 	if (imxpd->panel && imxpd->panel->funcs &&
 	    imxpd->panel->funcs->get_modes) {
+		struct drm_display_info *di = &connector->display_info;
+
 		num_modes = imxpd->panel->funcs->get_modes(imxpd->panel);
+		if (!imxpd->bus_format && di->num_bus_formats)
+			imxpd->bus_format = di->bus_formats[0];
 		if (num_modes > 0)
 			return num_modes;
 	}
@@ -208,7 +213,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 {
 	struct drm_device *drm = data;
 	struct device_node *np = dev->of_node;
-	struct device_node *panel_node;
+	struct device_node *port;
 	const u8 *edidp;
 	struct imx_parallel_display *imxpd;
 	int ret;
@@ -234,11 +239,19 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 			imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI;
 	}
 
-	panel_node = of_parse_phandle(np, "fsl,panel", 0);
-	if (panel_node) {
-		imxpd->panel = of_drm_find_panel(panel_node);
-		if (!imxpd->panel)
-			return -EPROBE_DEFER;
+	/* port@1 is the output port */
+	port = of_graph_get_port_by_id(np, 1);
+	if (port) {
+		struct device_node *endpoint, *remote;
+
+		endpoint = of_get_child_by_name(port, "endpoint");
+		if (endpoint) {
+			remote = of_graph_get_remote_port_parent(endpoint);
+			if (remote)
+				imxpd->panel = of_drm_find_panel(remote);
+			if (!imxpd->panel)
+				return -EPROBE_DEFER;
+		}
 	}
 
 	imxpd->dev = dev;