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>

1 files changed, 1279 insertions, 0 deletions

diff --git a/kernel/drivers/media/pci/cobalt/cobalt-v4l2.c b/kernel/drivers/media/pci/cobalt/cobalt-v4l2.c
new file mode 100644
index 000000000..ff46e4242
--- /dev/null
+++ b/kernel/drivers/media/pci/cobalt/cobalt-v4l2.c
@@ -0,0 +1,1279 @@
+/*
+ *  cobalt V4L2 API
+ *
+ *  Derived from ivtv-ioctl.c and cx18-fileops.c
+ *
+ *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
+ *  All rights reserved.
+ *
+ *  This program is free software; you may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/math64.h>
+#include <linux/pci.h>
+#include <linux/v4l2-dv-timings.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/adv7604.h>
+#include <media/adv7842.h>
+
+#include "cobalt-alsa.h"
+#include "cobalt-cpld.h"
+#include "cobalt-driver.h"
+#include "cobalt-v4l2.h"
+#include "cobalt-irq.h"
+#include "cobalt-omnitek.h"
+
+static const struct v4l2_dv_timings cea1080p60 = V4L2_DV_BT_CEA_1920X1080P60;
+
+/* vb2 DMA streaming ops */
+
+static int cobalt_queue_setup(struct vb2_queue *q, const void *parg,
+			unsigned int *num_buffers, unsigned int *num_planes,
+			unsigned int sizes[], void *alloc_ctxs[])
+{
+	const struct v4l2_format *fmt = parg;
+	struct cobalt_stream *s = q->drv_priv;
+	unsigned size = s->stride * s->height;
+
+	if (*num_buffers < 3)
+		*num_buffers = 3;
+	if (*num_buffers > NR_BUFS)
+		*num_buffers = NR_BUFS;
+	*num_planes = 1;
+	if (fmt) {
+		if (fmt->fmt.pix.sizeimage < size)
+			return -EINVAL;
+		size = fmt->fmt.pix.sizeimage;
+	}
+	sizes[0] = size;
+	alloc_ctxs[0] = s->cobalt->alloc_ctx;
+	return 0;
+}
+
+static int cobalt_buf_init(struct vb2_buffer *vb)
+{
+	struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+	struct cobalt *cobalt = s->cobalt;
+	const size_t max_pages_per_line =
+		(COBALT_MAX_WIDTH * COBALT_MAX_BPP) / PAGE_SIZE + 2;
+	const size_t bytes =
+		COBALT_MAX_HEIGHT * max_pages_per_line * 0x20;
+	const size_t audio_bytes = ((1920 * 4) / PAGE_SIZE + 1) * 0x20;
+	struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+	struct sg_table *sg_desc = vb2_dma_sg_plane_desc(vb, 0);
+	unsigned size;
+	int ret;
+
+	size = s->stride * s->height;
+	if (vb2_plane_size(vb, 0) < size) {
+		cobalt_info("data will not fit into plane (%lu < %u)\n",
+					vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+
+	if (desc->virt == NULL) {
+		desc->dev = &cobalt->pci_dev->dev;
+		descriptor_list_allocate(desc,
+			s->is_audio ? audio_bytes : bytes);
+		if (desc->virt == NULL)
+			return -ENOMEM;
+	}
+	ret = descriptor_list_create(cobalt, sg_desc->sgl,
+			!s->is_output, sg_desc->nents, size,
+			s->width * s->bpp, s->stride, desc);
+	if (ret)
+		descriptor_list_free(desc);
+	return ret;
+}
+
+static void cobalt_buf_cleanup(struct vb2_buffer *vb)
+{
+	struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+	struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+
+	descriptor_list_free(desc);
+}
+
+static int cobalt_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+
+	vb2_set_plane_payload(vb, 0, s->stride * s->height);
+	vbuf->field = V4L2_FIELD_NONE;
+	return 0;
+}
+
+static void chain_all_buffers(struct cobalt_stream *s)
+{
+	struct sg_dma_desc_info *desc[NR_BUFS];
+	struct cobalt_buffer *cb;
+	struct list_head *p;
+	int i = 0;
+
+	list_for_each(p, &s->bufs) {
+		cb = list_entry(p, struct cobalt_buffer, list);
+		desc[i] = &s->dma_desc_info[cb->vb.vb2_buf.index];
+		if (i > 0)
+			descriptor_list_chain(desc[i-1], desc[i]);
+		i++;
+	}
+}
+
+static void cobalt_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vb2_queue *q = vb->vb2_queue;
+	struct cobalt_stream *s = q->drv_priv;
+	struct cobalt_buffer *cb = to_cobalt_buffer(vbuf);
+	struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+	unsigned long flags;
+
+	/* Prepare new buffer */
+	descriptor_list_loopback(desc);
+	descriptor_list_interrupt_disable(desc);
+
+	spin_lock_irqsave(&s->irqlock, flags);
+	list_add_tail(&cb->list, &s->bufs);
+	chain_all_buffers(s);
+	spin_unlock_irqrestore(&s->irqlock, flags);
+}
+
+static void cobalt_enable_output(struct cobalt_stream *s)
+{
+	struct cobalt *cobalt = s->cobalt;
+	struct v4l2_bt_timings *bt = &s->timings.bt;
+	struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+		COBALT_TX_BASE(cobalt);
+	unsigned fmt = s->pixfmt != V4L2_PIX_FMT_BGR32 ?
+			M00514_CONTROL_BITMAP_FORMAT_16_BPP_MSK : 0;
+	struct v4l2_subdev_format sd_fmt = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+
+	if (!cobalt_cpld_set_freq(cobalt, bt->pixelclock)) {
+		cobalt_err("pixelclock out of range\n");
+		return;
+	}
+
+	sd_fmt.format.colorspace = s->colorspace;
+	sd_fmt.format.xfer_func = s->xfer_func;
+	sd_fmt.format.ycbcr_enc = s->ycbcr_enc;
+	sd_fmt.format.quantization = s->quantization;
+	sd_fmt.format.width = bt->width;
+	sd_fmt.format.height = bt->height;
+
+	/* Set up FDMA packer */
+	switch (s->pixfmt) {
+	case V4L2_PIX_FMT_YUYV:
+		sd_fmt.format.code = MEDIA_BUS_FMT_UYVY8_1X16;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		sd_fmt.format.code = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+	}
+	v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
+
+	iowrite32(0, &vo->control);
+	/* 1080p60 */
+	iowrite32(bt->hsync, &vo->sync_generator_h_sync_length);
+	iowrite32(bt->hbackporch, &vo->sync_generator_h_backporch_length);
+	iowrite32(bt->width, &vo->sync_generator_h_active_length);
+	iowrite32(bt->hfrontporch, &vo->sync_generator_h_frontporch_length);
+	iowrite32(bt->vsync, &vo->sync_generator_v_sync_length);
+	iowrite32(bt->vbackporch, &vo->sync_generator_v_backporch_length);
+	iowrite32(bt->height, &vo->sync_generator_v_active_length);
+	iowrite32(bt->vfrontporch, &vo->sync_generator_v_frontporch_length);
+	iowrite32(0x9900c1, &vo->error_color);
+
+	iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_LOAD_PARAM_MSK | fmt,
+		  &vo->control);
+	iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK | fmt, &vo->control);
+	iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_ENABLE_MSK |
+		  M00514_CONTROL_BITMAP_FLOW_CTRL_OUTPUT_ENABLE_MSK |
+		  fmt, &vo->control);
+}
+
+static void cobalt_enable_input(struct cobalt_stream *s)
+{
+	struct cobalt *cobalt = s->cobalt;
+	int ch = (int)s->video_channel;
+	struct m00235_fdma_packer_regmap __iomem *packer;
+	struct v4l2_subdev_format sd_fmt_yuyv = {
+		.pad = s->pad_source,
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+		.format.code = MEDIA_BUS_FMT_YUYV8_1X16,
+	};
+	struct v4l2_subdev_format sd_fmt_rgb = {
+		.pad = s->pad_source,
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+		.format.code = MEDIA_BUS_FMT_RGB888_1X24,
+	};
+
+	cobalt_dbg(1, "video_channel %d (%s, %s)\n",
+		   s->video_channel,
+		   s->input == 0 ? "hdmi" : "generator",
+		   "YUYV");
+
+	packer = COBALT_CVI_PACKER(cobalt, ch);
+
+	/* Set up FDMA packer */
+	switch (s->pixfmt) {
+	case V4L2_PIX_FMT_YUYV:
+		iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+			  (1 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+			  &packer->control);
+		v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+				 &sd_fmt_yuyv);
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+			  (2 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+			  &packer->control);
+		v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+				 &sd_fmt_rgb);
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+			  M00235_CONTROL_BITMAP_ENDIAN_FORMAT_MSK |
+			  (3 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+			  &packer->control);
+		v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+				 &sd_fmt_rgb);
+		break;
+	}
+}
+
+static void cobalt_dma_start_streaming(struct cobalt_stream *s)
+{
+	struct cobalt *cobalt = s->cobalt;
+	int rx = s->video_channel;
+	struct m00460_evcnt_regmap __iomem *evcnt =
+		COBALT_CVI_EVCNT(cobalt, rx);
+	struct cobalt_buffer *cb;
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->irqlock, flags);
+	if (!s->is_output) {
+		iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
+		iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
+	} else {
+		struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+			COBALT_TX_BASE(cobalt);
+		u32 ctrl = ioread32(&vo->control);
+
+		ctrl &= ~(M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK |
+			  M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK);
+		iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK,
+			  &vo->control);
+		iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK,
+			  &vo->control);
+	}
+	cb = list_first_entry(&s->bufs, struct cobalt_buffer, list);
+	omni_sg_dma_start(s, &s->dma_desc_info[cb->vb.vb2_buf.index]);
+	spin_unlock_irqrestore(&s->irqlock, flags);
+}
+
+static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct cobalt_stream *s = q->drv_priv;
+	struct cobalt *cobalt = s->cobalt;
+	struct m00233_video_measure_regmap __iomem *vmr;
+	struct m00473_freewheel_regmap __iomem *fw;
+	struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+	int rx = s->video_channel;
+	struct m00389_cvi_regmap __iomem *cvi = COBALT_CVI(cobalt, rx);
+	struct m00460_evcnt_regmap __iomem *evcnt = COBALT_CVI_EVCNT(cobalt, rx);
+	struct v4l2_bt_timings *bt = &s->timings.bt;
+	u64 tot_size;
+	u32 clk_freq;
+
+	if (s->is_audio)
+		goto done;
+	if (s->is_output) {
+		s->unstable_frame = false;
+		cobalt_enable_output(s);
+		goto done;
+	}
+
+	cobalt_enable_input(s);
+
+	fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+	vmr = COBALT_CVI_VMR(cobalt, rx);
+	clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+
+	iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
+	iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
+	iowrite32(bt->width, &cvi->frame_width);
+	iowrite32(bt->height, &cvi->frame_height);
+	tot_size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+	iowrite32(div_u64((u64)V4L2_DV_BT_FRAME_WIDTH(bt) * COBALT_CLK * 4,
+			  bt->pixelclock), &vmr->hsync_timeout_val);
+	iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+	clk_freq = ioread32(&fw->clk_freq);
+	iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
+	/* The lower bound for the clock frequency is 0.5% lower as is
+	 * allowed by the spec */
+	iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
+		  &clkloss->test_clk_cnt_val);
+	/* will be enabled after the first frame has been received */
+	iowrite32(bt->width * bt->height, &fw->active_length);
+	iowrite32(div_u64((u64)clk_freq * tot_size, bt->pixelclock),
+		  &fw->total_length);
+	iowrite32(M00233_IRQ_TRIGGERS_BITMAP_VACTIVE_AREA_MSK |
+		  M00233_IRQ_TRIGGERS_BITMAP_HACTIVE_AREA_MSK,
+		  &vmr->irq_triggers);
+	iowrite32(0, &cvi->control);
+	iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+
+	iowrite32(0xff, &fw->output_color);
+	iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
+	iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
+		  M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK, &fw->ctrl);
+	s->unstable_frame = true;
+	s->enable_freewheel = false;
+	s->enable_cvi = false;
+	s->skip_first_frames = 0;
+
+done:
+	s->sequence = 0;
+	cobalt_dma_start_streaming(s);
+	return 0;
+}
+
+static void cobalt_dma_stop_streaming(struct cobalt_stream *s)
+{
+	struct cobalt *cobalt = s->cobalt;
+	struct sg_dma_desc_info *desc;
+	struct cobalt_buffer *cb;
+	struct list_head *p;
+	unsigned long flags;
+	int timeout_msec = 100;
+	int rx = s->video_channel;
+	struct m00460_evcnt_regmap __iomem *evcnt =
+		COBALT_CVI_EVCNT(cobalt, rx);
+
+	if (!s->is_output) {
+		iowrite32(0, &evcnt->control);
+	} else if (!s->is_audio) {
+		struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+			COBALT_TX_BASE(cobalt);
+
+		iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK, &vo->control);
+		iowrite32(0, &vo->control);
+	}
+
+	/* Try to stop the DMA engine gracefully */
+	spin_lock_irqsave(&s->irqlock, flags);
+	list_for_each(p, &s->bufs) {
+		cb = list_entry(p, struct cobalt_buffer, list);
+		desc = &s->dma_desc_info[cb->vb.vb2_buf.index];
+		/* Stop DMA after this descriptor chain */
+		descriptor_list_end_of_chain(desc);
+	}
+	spin_unlock_irqrestore(&s->irqlock, flags);
+
+	/* Wait 100 milisecond for DMA to finish, abort on timeout. */
+	if (!wait_event_timeout(s->q.done_wq, is_dma_done(s),
+				msecs_to_jiffies(timeout_msec))) {
+		omni_sg_dma_abort_channel(s);
+		pr_warn("aborted\n");
+	}
+	cobalt_write_bar0(cobalt, DMA_INTERRUPT_STATUS_REG,
+			1 << s->dma_channel);
+}
+
+static void cobalt_stop_streaming(struct vb2_queue *q)
+{
+	struct cobalt_stream *s = q->drv_priv;
+	struct cobalt *cobalt = s->cobalt;
+	int rx = s->video_channel;
+	struct m00233_video_measure_regmap __iomem *vmr;
+	struct m00473_freewheel_regmap __iomem *fw;
+	struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+	struct cobalt_buffer *cb;
+	struct list_head *p, *safe;
+	unsigned long flags;
+
+	cobalt_dma_stop_streaming(s);
+
+	/* Return all buffers to user space */
+	spin_lock_irqsave(&s->irqlock, flags);
+	list_for_each_safe(p, safe, &s->bufs) {
+		cb = list_entry(p, struct cobalt_buffer, list);
+		list_del(&cb->list);
+		vb2_buffer_done(&cb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+	spin_unlock_irqrestore(&s->irqlock, flags);
+
+	if (s->is_audio || s->is_output)
+		return;
+
+	fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+	vmr = COBALT_CVI_VMR(cobalt, rx);
+	clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+	iowrite32(0, &vmr->control);
+	iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+	iowrite32(0, &fw->ctrl);
+	iowrite32(0, &clkloss->ctrl);
+}
+
+static const struct vb2_ops cobalt_qops = {
+	.queue_setup = cobalt_queue_setup,
+	.buf_init = cobalt_buf_init,
+	.buf_cleanup = cobalt_buf_cleanup,
+	.buf_prepare = cobalt_buf_prepare,
+	.buf_queue = cobalt_buf_queue,
+	.start_streaming = cobalt_start_streaming,
+	.stop_streaming = cobalt_stop_streaming,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+};
+
+/* V4L2 ioctls */
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int cobalt_cobaltc(struct cobalt *cobalt, unsigned int cmd, void *arg)
+{
+	struct v4l2_dbg_register *regs = arg;
+	void __iomem *adrs = cobalt->bar1 + regs->reg;
+
+	cobalt_info("cobalt_cobaltc: adrs = %p\n", adrs);
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	regs->size = 4;
+	if (cmd == VIDIOC_DBG_S_REGISTER)
+		iowrite32(regs->val, adrs);
+	else
+		regs->val = ioread32(adrs);
+	return 0;
+}
+
+static int cobalt_g_register(struct file *file, void *priv_fh,
+		struct v4l2_dbg_register *reg)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct cobalt *cobalt = s->cobalt;
+
+	return cobalt_cobaltc(cobalt, VIDIOC_DBG_G_REGISTER, reg);
+}
+
+static int cobalt_s_register(struct file *file, void *priv_fh,
+		const struct v4l2_dbg_register *reg)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct cobalt *cobalt = s->cobalt;
+
+	return cobalt_cobaltc(cobalt, VIDIOC_DBG_S_REGISTER,
+			(struct v4l2_dbg_register *)reg);
+}
+#endif
+
+static int cobalt_querycap(struct file *file, void *priv_fh,
+				struct v4l2_capability *vcap)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct cobalt *cobalt = s->cobalt;
+
+	strlcpy(vcap->driver, "cobalt", sizeof(vcap->driver));
+	strlcpy(vcap->card, "cobalt", sizeof(vcap->card));
+	snprintf(vcap->bus_info, sizeof(vcap->bus_info),
+		 "PCIe:%s", pci_name(cobalt->pci_dev));
+	vcap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+	if (s->is_output)
+		vcap->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
+	else
+		vcap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
+	vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS |
+		V4L2_CAP_VIDEO_CAPTURE;
+	if (cobalt->have_hsma_tx)
+		vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT;
+	return 0;
+}
+
+static void cobalt_video_input_status_show(struct cobalt_stream *s)
+{
+	struct m00389_cvi_regmap __iomem *cvi;
+	struct m00233_video_measure_regmap __iomem *vmr;
+	struct m00473_freewheel_regmap __iomem *fw;
+	struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+	struct m00235_fdma_packer_regmap __iomem *packer;
+	int rx = s->video_channel;
+	struct cobalt *cobalt = s->cobalt;
+	u32 cvi_ctrl, cvi_stat;
+	u32 vmr_ctrl, vmr_stat;
+
+	cvi = COBALT_CVI(cobalt, rx);
+	vmr = COBALT_CVI_VMR(cobalt, rx);
+	fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+	clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+	packer = COBALT_CVI_PACKER(cobalt, rx);
+	cvi_ctrl = ioread32(&cvi->control);
+	cvi_stat = ioread32(&cvi->status);
+	vmr_ctrl = ioread32(&vmr->control);
+	vmr_stat = ioread32(&vmr->control);
+	cobalt_info("rx%d: cvi resolution: %dx%d\n", rx,
+		    ioread32(&cvi->frame_width), ioread32(&cvi->frame_height));
+	cobalt_info("rx%d: cvi control: %s%s%s\n", rx,
+		(cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ?
+			"enable " : "disable ",
+		(cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
+			"HSync- " : "HSync+ ",
+		(cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
+			"VSync- " : "VSync+ ");
+	cobalt_info("rx%d: cvi status: %s%s\n", rx,
+		(cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ?
+			"lock " : "no-lock ",
+		(cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ?
+			"error " : "no-error ");
+
+	cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx,
+		(vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
+			"HSync- " : "HSync+ ",
+		(vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
+			"VSync- " : "VSync+ ",
+		(vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ?
+			"enabled " : "disabled ",
+		(vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ?
+			"irq-enabled " : "irq-disabled ",
+		(vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ?
+			"update-on-hsync " : "",
+		(vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ?
+			"hsync-timeout " : "",
+		(vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ?
+			"init-done" : "");
+	cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx,
+			ioread32(&vmr->irq_status) & 0xff,
+			ioread32(&vmr->irq_triggers) & 0xff);
+	cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time));
+	cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch));
+	cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area));
+	cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch));
+	cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time));
+	cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch));
+	cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area));
+	cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch));
+	cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx,
+		(ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ?
+			"enabled " : "disabled ",
+		(ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ?
+			"forced " : "",
+		(ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ?
+			"freewheeling " : "video-passthrough ");
+	iowrite32(0xff, &vmr->irq_status);
+	cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx,
+		(ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ?
+			"enabled " : "disabled ",
+		(ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ?
+			"clock-missing " : "found-clock ");
+	cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control));
+}
+
+static int cobalt_log_status(struct file *file, void *priv_fh)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct cobalt *cobalt = s->cobalt;
+	struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+		COBALT_TX_BASE(cobalt);
+	u8 stat;
+
+	cobalt_info("%s", cobalt->hdl_info);
+	cobalt_info("sysctrl: %08x, sysstat: %08x\n",
+			cobalt_g_sysctrl(cobalt),
+			cobalt_g_sysstat(cobalt));
+	cobalt_info("dma channel: %d, video channel: %d\n",
+			s->dma_channel, s->video_channel);
+	cobalt_pcie_status_show(cobalt);
+	cobalt_cpld_status(cobalt);
+	cobalt_irq_log_status(cobalt);
+	v4l2_subdev_call(s->sd, core, log_status);
+	if (!s->is_output) {
+		cobalt_video_input_status_show(s);
+		return 0;
+	}
+
+	stat = ioread32(&vo->rd_status);
+
+	cobalt_info("tx: status: %s%s\n",
+		(stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ?
+			"no_data " : "",
+		(stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ?
+			"ready_buffer_full " : "");
+	cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count));
+	return 0;
+}
+
+static int cobalt_enum_dv_timings(struct file *file, void *priv_fh,
+				    struct v4l2_enum_dv_timings *timings)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	if (s->input == 1) {
+		if (timings->index)
+			return -EINVAL;
+		memset(timings->reserved, 0, sizeof(timings->reserved));
+		timings->timings = cea1080p60;
+		return 0;
+	}
+	timings->pad = 0;
+	return v4l2_subdev_call(s->sd,
+			pad, enum_dv_timings, timings);
+}
+
+static int cobalt_s_dv_timings(struct file *file, void *priv_fh,
+				    struct v4l2_dv_timings *timings)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	int err;
+
+	if (s->input == 1) {
+		*timings = cea1080p60;
+		return 0;
+	}
+
+	if (v4l2_match_dv_timings(timings, &s->timings, 0))
+		return 0;
+
+	if (vb2_is_busy(&s->q))
+		return -EBUSY;
+
+	err = v4l2_subdev_call(s->sd,
+			video, s_dv_timings, timings);
+	if (!err) {
+		s->timings = *timings;
+		s->width = timings->bt.width;
+		s->height = timings->bt.height;
+		s->stride = timings->bt.width * s->bpp;
+	}
+	return err;
+}
+
+static int cobalt_g_dv_timings(struct file *file, void *priv_fh,
+				    struct v4l2_dv_timings *timings)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	if (s->input == 1) {
+		*timings = cea1080p60;
+		return 0;
+	}
+	return v4l2_subdev_call(s->sd,
+			video, g_dv_timings, timings);
+}
+
+static int cobalt_query_dv_timings(struct file *file, void *priv_fh,
+				    struct v4l2_dv_timings *timings)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	if (s->input == 1) {
+		*timings = cea1080p60;
+		return 0;
+	}
+	return v4l2_subdev_call(s->sd,
+			video, query_dv_timings, timings);
+}
+
+static int cobalt_dv_timings_cap(struct file *file, void *priv_fh,
+				    struct v4l2_dv_timings_cap *cap)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	cap->pad = 0;
+	return v4l2_subdev_call(s->sd,
+			pad, dv_timings_cap, cap);
+}
+
+static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh,
+		struct v4l2_fmtdesc *f)
+{
+	switch (f->index) {
+	case 0:
+		strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
+		f->pixelformat = V4L2_PIX_FMT_YUYV;
+		break;
+	case 1:
+		strlcpy(f->description, "RGB24", sizeof(f->description));
+		f->pixelformat = V4L2_PIX_FMT_RGB24;
+		break;
+	case 2:
+		strlcpy(f->description, "RGB32", sizeof(f->description));
+		f->pixelformat = V4L2_PIX_FMT_BGR32;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_subdev_format sd_fmt;
+
+	pix->width = s->width;
+	pix->height = s->height;
+	pix->bytesperline = s->stride;
+	pix->field = V4L2_FIELD_NONE;
+
+	if (s->input == 1) {
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+	} else {
+		sd_fmt.pad = s->pad_source;
+		sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+		v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
+		v4l2_fill_pix_format(pix, &sd_fmt.format);
+	}
+
+	pix->pixelformat = s->pixfmt;
+	pix->sizeimage = pix->bytesperline * pix->height;
+
+	return 0;
+}
+
+static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_subdev_format sd_fmt;
+
+	/* Check for min (QCIF) and max (Full HD) size */
+	if ((pix->width < 176) || (pix->height < 144)) {
+		pix->width = 176;
+		pix->height = 144;
+	}
+
+	if ((pix->width > 1920) || (pix->height > 1080)) {
+		pix->width = 1920;
+		pix->height = 1080;
+	}
+
+	/* Make width multiple of 4 */
+	pix->width &= ~0x3;
+
+	/* Make height multiple of 2 */
+	pix->height &= ~0x1;
+
+	if (s->input == 1) {
+		/* Generator => fixed format only */
+		pix->width = 1920;
+		pix->height = 1080;
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+	} else {
+		sd_fmt.pad = s->pad_source;
+		sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+		v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
+		v4l2_fill_pix_format(pix, &sd_fmt.format);
+	}
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+	default:
+		pix->bytesperline = max(pix->bytesperline & ~0x3,
+				pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
+		pix->pixelformat = V4L2_PIX_FMT_YUYV;
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		pix->bytesperline = max(pix->bytesperline & ~0x3,
+				pix->width * COBALT_BYTES_PER_PIXEL_RGB24);
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		pix->bytesperline = max(pix->bytesperline & ~0x3,
+				pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
+		break;
+	}
+
+	pix->sizeimage = pix->bytesperline * pix->height;
+	pix->field = V4L2_FIELD_NONE;
+	pix->priv = 0;
+
+	return 0;
+}
+
+static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+
+	if (vb2_is_busy(&s->q))
+		return -EBUSY;
+
+	if (cobalt_try_fmt_vid_cap(file, priv_fh, f))
+		return -EINVAL;
+
+	s->width = pix->width;
+	s->height = pix->height;
+	s->stride = pix->bytesperline;
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+		s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		s->bpp = COBALT_BYTES_PER_PIXEL_RGB24;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+		break;
+	default:
+		return -EINVAL;
+	}
+	s->pixfmt = pix->pixelformat;
+	cobalt_enable_input(s);
+
+	return 0;
+}
+
+static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+
+	/* Check for min (QCIF) and max (Full HD) size */
+	if ((pix->width < 176) || (pix->height < 144)) {
+		pix->width = 176;
+		pix->height = 144;
+	}
+
+	if ((pix->width > 1920) || (pix->height > 1080)) {
+		pix->width = 1920;
+		pix->height = 1080;
+	}
+
+	/* Make width multiple of 4 */
+	pix->width &= ~0x3;
+
+	/* Make height multiple of 2 */
+	pix->height &= ~0x1;
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+	default:
+		pix->bytesperline = max(pix->bytesperline & ~0x3,
+				pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
+		pix->pixelformat = V4L2_PIX_FMT_YUYV;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		pix->bytesperline = max(pix->bytesperline & ~0x3,
+				pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
+		break;
+	}
+
+	pix->sizeimage = pix->bytesperline * pix->height;
+	pix->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+
+	pix->width = s->width;
+	pix->height = s->height;
+	pix->bytesperline = s->stride;
+	pix->field = V4L2_FIELD_NONE;
+	pix->pixelformat = s->pixfmt;
+	pix->colorspace = s->colorspace;
+	pix->xfer_func = s->xfer_func;
+	pix->ycbcr_enc = s->ycbcr_enc;
+	pix->quantization = s->quantization;
+	pix->sizeimage = pix->bytesperline * pix->height;
+
+	return 0;
+}
+
+static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh,
+		struct v4l2_fmtdesc *f)
+{
+	switch (f->index) {
+	case 0:
+		strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
+		f->pixelformat = V4L2_PIX_FMT_YUYV;
+		break;
+	case 1:
+		strlcpy(f->description, "RGB32", sizeof(f->description));
+		f->pixelformat = V4L2_PIX_FMT_BGR32;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh,
+		struct v4l2_format *f)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_subdev_format sd_fmt = { 0 };
+	u32 code;
+
+	if (cobalt_try_fmt_vid_out(file, priv_fh, f))
+		return -EINVAL;
+
+	if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt ||
+	    pix->width != s->width || pix->height != s->height ||
+	    pix->bytesperline != s->stride))
+		return -EBUSY;
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+		s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+		code = MEDIA_BUS_FMT_UYVY8_1X16;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+		code = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+	default:
+		return -EINVAL;
+	}
+	s->width = pix->width;
+	s->height = pix->height;
+	s->stride = pix->bytesperline;
+	s->pixfmt = pix->pixelformat;
+	s->colorspace = pix->colorspace;
+	s->xfer_func = pix->xfer_func;
+	s->ycbcr_enc = pix->ycbcr_enc;
+	s->quantization = pix->quantization;
+	sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+	v4l2_fill_mbus_format(&sd_fmt.format, pix, code);
+	v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
+	return 0;
+}
+
+static int cobalt_enum_input(struct file *file, void *priv_fh,
+				 struct v4l2_input *inp)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	if (inp->index > 1)
+		return -EINVAL;
+	if (inp->index == 0)
+		snprintf(inp->name, sizeof(inp->name),
+				"HDMI-%d", s->video_channel);
+	else
+		snprintf(inp->name, sizeof(inp->name),
+				"Generator-%d", s->video_channel);
+	inp->type = V4L2_INPUT_TYPE_CAMERA;
+	inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+	if (inp->index == 1)
+		return 0;
+	return v4l2_subdev_call(s->sd,
+			video, g_input_status, &inp->status);
+}
+
+static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	*i = s->input;
+	return 0;
+}
+
+static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+
+	if (i >= 2)
+		return -EINVAL;
+	if (vb2_is_busy(&s->q))
+		return -EBUSY;
+	s->input = i;
+
+	cobalt_enable_input(s);
+
+	if (s->input == 1) /* Test Pattern Generator */
+		return 0;
+
+	return v4l2_subdev_call(s->sd, video, s_routing,
+			ADV76XX_PAD_HDMI_PORT_A, 0, 0);
+}
+
+static int cobalt_enum_output(struct file *file, void *priv_fh,
+				 struct v4l2_output *out)
+{
+	if (out->index)
+		return -EINVAL;
+	snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index);
+	out->type = V4L2_OUTPUT_TYPE_ANALOG;
+	out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
+	return 0;
+}
+
+static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i)
+{
+	return i ? -EINVAL : 0;
+}
+
+static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	u32 pad = edid->pad;
+	int ret;
+
+	if (edid->pad >= (s->is_output ? 1 : 2))
+		return -EINVAL;
+	edid->pad = 0;
+	ret = v4l2_subdev_call(s->sd, pad, get_edid, edid);
+	edid->pad = pad;
+	return ret;
+}
+
+static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+	struct cobalt_stream *s = video_drvdata(file);
+	u32 pad = edid->pad;
+	int ret;
+
+	if (edid->pad >= 2)
+		return -EINVAL;
+	edid->pad = 0;
+	ret = v4l2_subdev_call(s->sd, pad, set_edid, edid);
+	edid->pad = pad;
+	return ret;
+}
+
+static int cobalt_subscribe_event(struct v4l2_fh *fh,
+				  const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_event_subscribe(fh, sub, 4, NULL);
+	}
+	return v4l2_ctrl_subscribe_event(fh, sub);
+}
+
+static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	a->parm.capture.timeperframe.numerator = 1;
+	a->parm.capture.timeperframe.denominator = 60;
+	a->parm.capture.readbuffers = 3;
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
+	.vidioc_querycap		= cobalt_querycap,
+	.vidioc_g_parm			= cobalt_g_parm,
+	.vidioc_log_status		= cobalt_log_status,
+	.vidioc_streamon		= vb2_ioctl_streamon,
+	.vidioc_streamoff		= vb2_ioctl_streamoff,
+	.vidioc_enum_input		= cobalt_enum_input,
+	.vidioc_g_input			= cobalt_g_input,
+	.vidioc_s_input			= cobalt_s_input,
+	.vidioc_enum_fmt_vid_cap	= cobalt_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap		= cobalt_g_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap		= cobalt_s_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap		= cobalt_try_fmt_vid_cap,
+	.vidioc_enum_output		= cobalt_enum_output,
+	.vidioc_g_output		= cobalt_g_output,
+	.vidioc_s_output		= cobalt_s_output,
+	.vidioc_enum_fmt_vid_out	= cobalt_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out		= cobalt_g_fmt_vid_out,
+	.vidioc_s_fmt_vid_out		= cobalt_s_fmt_vid_out,
+	.vidioc_try_fmt_vid_out		= cobalt_try_fmt_vid_out,
+	.vidioc_s_dv_timings		= cobalt_s_dv_timings,
+	.vidioc_g_dv_timings		= cobalt_g_dv_timings,
+	.vidioc_query_dv_timings	= cobalt_query_dv_timings,
+	.vidioc_enum_dv_timings		= cobalt_enum_dv_timings,
+	.vidioc_dv_timings_cap		= cobalt_dv_timings_cap,
+	.vidioc_g_edid			= cobalt_g_edid,
+	.vidioc_s_edid			= cobalt_s_edid,
+	.vidioc_subscribe_event		= cobalt_subscribe_event,
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
+	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
+	.vidioc_querybuf		= vb2_ioctl_querybuf,
+	.vidioc_qbuf			= vb2_ioctl_qbuf,
+	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
+	.vidioc_expbuf			= vb2_ioctl_expbuf,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.vidioc_g_register              = cobalt_g_register,
+	.vidioc_s_register              = cobalt_s_register,
+#endif
+};
+
+static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = {
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.vidioc_g_register              = cobalt_g_register,
+	.vidioc_s_register              = cobalt_s_register,
+#endif
+};
+
+/* Register device nodes */
+
+static const struct v4l2_file_operations cobalt_fops = {
+	.owner = THIS_MODULE,
+	.open = v4l2_fh_open,
+	.unlocked_ioctl = video_ioctl2,
+	.release = vb2_fop_release,
+	.poll = vb2_fop_poll,
+	.mmap = vb2_fop_mmap,
+	.read = vb2_fop_read,
+};
+
+static const struct v4l2_file_operations cobalt_out_fops = {
+	.owner = THIS_MODULE,
+	.open = v4l2_fh_open,
+	.unlocked_ioctl = video_ioctl2,
+	.release = vb2_fop_release,
+	.poll = vb2_fop_poll,
+	.mmap = vb2_fop_mmap,
+	.write = vb2_fop_write,
+};
+
+static const struct v4l2_file_operations cobalt_empty_fops = {
+	.owner = THIS_MODULE,
+	.open = v4l2_fh_open,
+	.unlocked_ioctl = video_ioctl2,
+	.release = v4l2_fh_release,
+};
+
+static int cobalt_node_register(struct cobalt *cobalt, int node)
+{
+	static const struct v4l2_dv_timings dv1080p60 =
+		V4L2_DV_BT_CEA_1920X1080P60;
+	struct cobalt_stream *s = cobalt->streams + node;
+	struct video_device *vdev = &s->vdev;
+	struct vb2_queue *q = &s->q;
+	int ret;
+
+	mutex_init(&s->lock);
+	spin_lock_init(&s->irqlock);
+
+	snprintf(vdev->name, sizeof(vdev->name),
+			"%s-%d", cobalt->v4l2_dev.name, node);
+	s->width = 1920;
+	/* Audio frames are just 4 lines of 1920 bytes */
+	s->height = s->is_audio ? 4 : 1080;
+
+	if (s->is_audio) {
+		s->bpp = 1;
+		s->pixfmt = V4L2_PIX_FMT_GREY;
+	} else if (s->is_output) {
+		s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+		s->pixfmt = V4L2_PIX_FMT_BGR32;
+	} else {
+		s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+		s->pixfmt = V4L2_PIX_FMT_YUYV;
+	}
+	s->colorspace = V4L2_COLORSPACE_SRGB;
+	s->stride = s->width * s->bpp;
+
+	if (!s->is_audio) {
+		if (s->is_dummy)
+			cobalt_warn("Setting up dummy video node %d\n", node);
+		vdev->v4l2_dev = &cobalt->v4l2_dev;
+		if (s->is_dummy)
+			vdev->fops = &cobalt_empty_fops;
+		else
+			vdev->fops = s->is_output ? &cobalt_out_fops :
+						    &cobalt_fops;
+		vdev->release = video_device_release_empty;
+		vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX;
+		vdev->lock = &s->lock;
+		if (s->sd)
+			vdev->ctrl_handler = s->sd->ctrl_handler;
+		s->timings = dv1080p60;
+		v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings);
+		if (!s->is_output && s->sd)
+			cobalt_enable_input(s);
+		vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops :
+				  &cobalt_ioctl_ops;
+	}
+
+	INIT_LIST_HEAD(&s->bufs);
+	q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
+				 V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ;
+	q->drv_priv = s;
+	q->buf_struct_size = sizeof(struct cobalt_buffer);
+	q->ops = &cobalt_qops;
+	q->mem_ops = &vb2_dma_sg_memops;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->min_buffers_needed = 2;
+	q->lock = &s->lock;
+	vdev->queue = q;
+
+	video_set_drvdata(vdev, s);
+	ret = vb2_queue_init(q);
+	if (!s->is_audio && ret == 0)
+		ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+	else if (!s->is_dummy)
+		ret = cobalt_alsa_init(s);
+
+	if (ret < 0) {
+		if (!s->is_audio)
+			cobalt_err("couldn't register v4l2 device node %d\n",
+					node);
+		return ret;
+	}
+	cobalt_info("registered node %d\n", node);
+	return 0;
+}
+
+/* Initialize v4l2 variables and register v4l2 devices */
+int cobalt_nodes_register(struct cobalt *cobalt)
+{
+	int node, ret;
+
+	/* Setup V4L2 Devices */
+	for (node = 0; node < COBALT_NUM_STREAMS; node++) {
+		ret = cobalt_node_register(cobalt, node);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
+/* Unregister v4l2 devices */
+void cobalt_nodes_unregister(struct cobalt *cobalt)
+{
+	int node;
+
+	/* Teardown all streams */
+	for (node = 0; node < COBALT_NUM_STREAMS; node++) {
+		struct cobalt_stream *s = cobalt->streams + node;
+		struct video_device *vdev = &s->vdev;
+
+		if (!s->is_audio)
+			video_unregister_device(vdev);
+		else if (!s->is_dummy)
+			cobalt_alsa_exit(s);
+	}
+}