Merge tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - v4l core: subdev frame interval now supports which field

 - v4l kapi: moves and renames the init_cfg pad op to init_state as an
   internal op.

 - new sensor drivers: gc0308, gc2145, Avnet Alvium, ov64a40, tw9900

 - new camera driver: STM32 DCMIPP

 - s5p-mfc has gained MFC v12 support

 - new ISP driver added to staging: Starfive

 - new stateful encoder/decoded: Wave5 codec It is found on the J721S2
   SoC, JH7100 SoC, ssd202d SoC. Etc.

 - fwnode gained support for MIPI "DisCo for Imaging"
   (https://www.mipi.org/specifications/mipi-disco-imaging)

 - as usual, lots of cleanups, fixups and driver improvements.

* tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (309 commits)
  media: i2c: thp7312: select CONFIG_FW_LOADER
  media: i2c: mt9m114: use fsleep() in place of udelay()
  media: videobuf2: core: Rename min_buffers_needed field in vb2_queue
  media: i2c: thp7312: Store frame interval in subdev state
  media: docs: uAPI: Fix documentation of 'which' field for routing ioctls
  media: docs: uAPI: Expand error documentation for invalid 'which' value
  media: docs: uAPI: Clarify error documentation for invalid 'which' value
  media: v4l2-subdev: Store frame interval in subdev state
  media: v4l2-subdev: Add which field to struct v4l2_subdev_frame_interval
  media: v4l2-subdev: Turn .[gs]_frame_interval into pad operations
  media: v4l: subdev: Move out subdev state lock macros outside CONFIG_MEDIA_CONTROLLER
  media: s5p-mfc: DPB Count Independent of VIDIOC_REQBUF
  media: s5p-mfc: Load firmware for each run in MFCv12.
  media: s5p-mfc: Set context for valid case before calling try_run
  media: s5p-mfc: Add support for DMABUF for encoder
  media: s5p-mfc: Add support for UHD encoding.
  media: s5p-mfc: Add support for rate controls in MFCv12
  media: s5p-mfc: Add YV12 and I420 multiplanar format support
  media: s5p-mfc: Add initial support for MFCv12
  media: s5p-mfc: Rename IS_MFCV10 macro
  ...

25 files changed, 124 insertions, 93 deletions

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 09a193bb87df..511f013cc338 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -1536,13 +1536,11 @@ static void buf_cleanup(struct vb2_buffer *vb)
 
 static int start_streaming(struct vb2_queue *q, unsigned int count)
 {
-	int ret = 1;
 	int seqnr = 0;
 	struct bttv_buffer *buf;
 	struct bttv *btv = vb2_get_drv_priv(q);
 
-	ret = check_alloc_btres_lock(btv, RESOURCE_VIDEO_STREAM);
-	if (ret == 0) {
+	if (!check_alloc_btres_lock(btv, RESOURCE_VIDEO_STREAM)) {
 		if (btv->field_count)
 			seqnr++;
 		while (!list_empty(&btv->capture)) {
@@ -1553,7 +1551,7 @@ static int start_streaming(struct vb2_queue *q, unsigned int count)
 			vb2_buffer_done(&buf->vbuf.vb2_buf,
 					VB2_BUF_STATE_QUEUED);
 		}
-		return !ret;
+		return -EBUSY;
 	}
 	if (!vb2_is_streaming(&btv->vbiq)) {
 		init_irqreg(btv);
@@ -2774,6 +2772,27 @@ bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
 		return;
 	wakeup->vbuf.vb2_buf.timestamp = ktime_get_ns();
 	wakeup->vbuf.sequence = btv->field_count >> 1;
+
+	/*
+	 * Ugly hack for backwards compatibility.
+	 * Some applications expect that the last 4 bytes of
+	 * the VBI data contains the sequence number.
+	 *
+	 * This makes it possible to associate the VBI data
+	 * with the video frame if you use read() to get the
+	 * VBI data.
+	 */
+	if (vb2_fileio_is_active(wakeup->vbuf.vb2_buf.vb2_queue)) {
+		u32 *vaddr = vb2_plane_vaddr(&wakeup->vbuf.vb2_buf, 0);
+		unsigned long size =
+			vb2_get_plane_payload(&wakeup->vbuf.vb2_buf, 0) / 4;
+
+		if (vaddr && size) {
+			vaddr += size - 1;
+			*vaddr = wakeup->vbuf.sequence;
+		}
+	}
+
 	vb2_buffer_done(&wakeup->vbuf.vb2_buf, state);
 	if (btv->field_count == 0)
 		btor(BT848_INT_VSYNC, BT848_INT_MASK);
@@ -3094,7 +3113,7 @@ static int vdev_init(struct bttv *btv, struct video_device *vfd,
 	q->gfp_flags = __GFP_DMA32;
 	q->buf_struct_size = sizeof(struct bttv_buffer);
 	q->lock = &btv->lock;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->dev = &btv->c.pci->dev;
 	err = vb2_queue_init(q);
 	if (err)
diff --git a/drivers/media/pci/bt8xx/bttv-vbi.c b/drivers/media/pci/bt8xx/bttv-vbi.c
index ab213e51ec95..e489a3acb4b9 100644
--- a/drivers/media/pci/bt8xx/bttv-vbi.c
+++ b/drivers/media/pci/bt8xx/bttv-vbi.c
@@ -123,14 +123,12 @@ static void buf_cleanup_vbi(struct vb2_buffer *vb)
 
 static int start_streaming_vbi(struct vb2_queue *q, unsigned int count)
 {
-	int ret;
 	int seqnr = 0;
 	struct bttv_buffer *buf;
 	struct bttv *btv = vb2_get_drv_priv(q);
 
 	btv->framedrop = 0;
-	ret = check_alloc_btres_lock(btv, RESOURCE_VBI);
-	if (ret == 0) {
+	if (!check_alloc_btres_lock(btv, RESOURCE_VBI)) {
 		if (btv->field_count)
 			seqnr++;
 		while (!list_empty(&btv->vcapture)) {
@@ -141,13 +139,13 @@ static int start_streaming_vbi(struct vb2_queue *q, unsigned int count)
 			vb2_buffer_done(&buf->vbuf.vb2_buf,
 					VB2_BUF_STATE_QUEUED);
 		}
-		return !ret;
+		return -EBUSY;
 	}
 	if (!vb2_is_streaming(&btv->capq)) {
 		init_irqreg(btv);
 		btv->field_count = 0;
 	}
-	return !ret;
+	return 0;
 }
 
 static void stop_streaming_vbi(struct vb2_queue *q)
diff --git a/drivers/media/pci/cobalt/cobalt-v4l2.c b/drivers/media/pci/cobalt/cobalt-v4l2.c
index 26bf58d17a3d..77ba08ace29f 100644
--- a/drivers/media/pci/cobalt/cobalt-v4l2.c
+++ b/drivers/media/pci/cobalt/cobalt-v4l2.c
@@ -1260,7 +1260,7 @@ static int cobalt_node_register(struct cobalt *cobalt, int node)
 	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->min_queued_buffers = 2;
 	q->lock = &s->lock;
 	q->dev = &cobalt->pci_dev->dev;
 	vdev->queue = q;
diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c
index 597472754c4c..acc6418db425 100644
--- a/drivers/media/pci/cx18/cx18-streams.c
+++ b/drivers/media/pci/cx18/cx18-streams.c
@@ -104,6 +104,7 @@ static int cx18_queue_setup(struct vb2_queue *vq,
 			    unsigned int *nbuffers, unsigned int *nplanes,
 			    unsigned int sizes[], struct device *alloc_devs[])
 {
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 	struct cx18_stream *s = vb2_get_drv_priv(vq);
 	struct cx18 *cx = s->cx;
 	unsigned int szimage;
@@ -121,8 +122,8 @@ static int cx18_queue_setup(struct vb2_queue *vq,
 	 * Let's request at least three buffers: two for the
 	 * DMA engine and one for userspace.
 	 */
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	if (*nplanes) {
 		if (*nplanes != 1 || sizes[0] < szimage)
@@ -286,7 +287,7 @@ static int cx18_stream_init(struct cx18 *cx, int type)
 		s->vidq.ops = &cx18_vb2_qops;
 		s->vidq.mem_ops = &vb2_vmalloc_memops;
 		s->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-		s->vidq.min_buffers_needed = 2;
+		s->vidq.min_queued_buffers = 2;
 		s->vidq.gfp_flags = GFP_DMA32;
 		s->vidq.dev = &cx->pci_dev->dev;
 		s->vidq.lock = &cx->serialize_lock;
diff --git a/drivers/media/pci/cx23885/cx23885-417.c b/drivers/media/pci/cx23885/cx23885-417.c
index 434677bd4ad1..fdb96f80c036 100644
--- a/drivers/media/pci/cx23885/cx23885-417.c
+++ b/drivers/media/pci/cx23885/cx23885-417.c
@@ -1525,7 +1525,7 @@ int cx23885_417_register(struct cx23885_dev *dev)
 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx23885_buffer);
 	q->ops = &cx23885_qops;
diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c
index 7551ca4a322a..3d01cdc4c7f3 100644
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -2667,7 +2667,7 @@ int cx23885_dvb_register(struct cx23885_tsport *port)
 		q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 		q->gfp_flags = GFP_DMA32;
-		q->min_buffers_needed = 2;
+		q->min_queued_buffers = 2;
 		q->drv_priv = port;
 		q->buf_struct_size = sizeof(struct cx23885_buffer);
 		q->ops = &dvb_qops;
diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c
index 9af2c5596121..42fdcf992e48 100644
--- a/drivers/media/pci/cx23885/cx23885-video.c
+++ b/drivers/media/pci/cx23885/cx23885-video.c
@@ -1321,7 +1321,7 @@ int cx23885_video_register(struct cx23885_dev *dev)
 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx23885_buffer);
 	q->ops = &cx23885_video_qops;
@@ -1338,7 +1338,7 @@ int cx23885_video_register(struct cx23885_dev *dev)
 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx23885_buffer);
 	q->ops = &cx23885_vbi_qops;
diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c
index 1b80c990cb94..0bee4b728a60 100644
--- a/drivers/media/pci/cx25821/cx25821-video.c
+++ b/drivers/media/pci/cx25821/cx25821-video.c
@@ -730,7 +730,7 @@ int cx25821_video_register(struct cx25821_dev *dev)
 		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
 		q->io_modes |= is_output ? VB2_WRITE : VB2_READ;
 		q->gfp_flags = GFP_DMA32;
-		q->min_buffers_needed = 2;
+		q->min_queued_buffers = 2;
 		q->drv_priv = chan;
 		q->buf_struct_size = sizeof(struct cx25821_buffer);
 		q->ops = &cx25821_video_qops;
diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index c1b41a9283c1..d55df8fdb3b6 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -1195,7 +1195,7 @@ static int cx8802_blackbird_probe(struct cx8802_driver *drv)
 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx88_buffer);
 	q->ops = &blackbird_qops;
diff --git a/drivers/media/pci/cx88/cx88-dvb.c b/drivers/media/pci/cx88/cx88-dvb.c
index 2087f2491c42..b33b3a5e32ec 100644
--- a/drivers/media/pci/cx88/cx88-dvb.c
+++ b/drivers/media/pci/cx88/cx88-dvb.c
@@ -1776,7 +1776,7 @@ static int cx8802_dvb_probe(struct cx8802_driver *drv)
 		q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 		q->gfp_flags = GFP_DMA32;
-		q->min_buffers_needed = 2;
+		q->min_queued_buffers = 2;
 		q->drv_priv = dev;
 		q->buf_struct_size = sizeof(struct cx88_buffer);
 		q->ops = &dvb_qops;
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index c0ef03ed74f9..cefb6b25e921 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1411,7 +1411,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx88_buffer);
 	q->ops = &cx8800_video_qops;
@@ -1428,7 +1428,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
 	q->gfp_flags = GFP_DMA32;
-	q->min_buffers_needed = 2;
+	q->min_queued_buffers = 2;
 	q->drv_priv = dev;
 	q->buf_struct_size = sizeof(struct cx88_buffer);
 	q->ops = &cx8800_vbi_qops;
diff --git a/drivers/media/pci/ddbridge/ddbridge-main.c b/drivers/media/pci/ddbridge/ddbridge-main.c
index 91733ab9f58c..363badab7cf0 100644
--- a/drivers/media/pci/ddbridge/ddbridge-main.c
+++ b/drivers/media/pci/ddbridge/ddbridge-main.c
@@ -238,7 +238,7 @@ fail:
 	ddb_unmap(dev);
 	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
-	return -1;
+	return stat;
 }
 
 /****************************************************************************/
diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c
index 548156b199cc..dff853e73fdc 100644
--- a/drivers/media/pci/dt3155/dt3155.c
+++ b/drivers/media/pci/dt3155/dt3155.c
@@ -128,8 +128,6 @@ dt3155_queue_setup(struct vb2_queue *vq,
 	struct dt3155_priv *pd = vb2_get_drv_priv(vq);
 	unsigned size = pd->width * pd->height;
 
-	if (vq->num_buffers + *nbuffers < 2)
-		*nbuffers = 2 - vq->num_buffers;
 	if (*num_planes)
 		return sizes[0] < size ? -EINVAL : 0;
 	*num_planes = 1;
@@ -519,7 +517,7 @@ static int dt3155_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	pd->vidq.ops = &q_ops;
 	pd->vidq.mem_ops = &vb2_dma_contig_memops;
 	pd->vidq.drv_priv = pd;
-	pd->vidq.min_buffers_needed = 2;
+	pd->vidq.min_queued_buffers = 2;
 	pd->vidq.gfp_flags = GFP_DMA32;
 	pd->vidq.lock = &pd->mux; /* for locking v4l2_file_operations */
 	pd->vidq.dev = &pdev->dev;
diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c
index e38198e259c0..f980e3125a7b 100644
--- a/drivers/media/pci/intel/ipu-bridge.c
+++ b/drivers/media/pci/intel/ipu-bridge.c
@@ -53,7 +53,7 @@ static const struct ipu_sensor_config ipu_supported_sensors[] = {
 	/* Omnivision ov8856 */
 	IPU_SENSOR_CONFIG("OVTI8856", 3, 180000000, 360000000, 720000000),
 	/* Omnivision ov2740 */
-	IPU_SENSOR_CONFIG("INT3474", 1, 360000000),
+	IPU_SENSOR_CONFIG("INT3474", 1, 180000000),
 	/* Hynix hi556 */
 	IPU_SENSOR_CONFIG("INT3537", 1, 437000000),
 	/* Omnivision ov13b10 */
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
index 5dd69a251b6a..ed08bf4178f0 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
@@ -1205,23 +1205,16 @@ static int cio2_subdev_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 	};
 
 	/* Initialize try_fmt */
-	format = v4l2_subdev_get_try_format(sd, fh->state, CIO2_PAD_SINK);
+	format = v4l2_subdev_state_get_format(fh->state, CIO2_PAD_SINK);
 	*format = fmt_default;
 
 	/* same as sink */
-	format = v4l2_subdev_get_try_format(sd, fh->state, CIO2_PAD_SOURCE);
+	format = v4l2_subdev_state_get_format(fh->state, CIO2_PAD_SOURCE);
 	*format = fmt_default;
 
 	return 0;
 }
 
-/*
- * cio2_subdev_get_fmt - Handle get format by pads subdev method
- * @sd : pointer to v4l2 subdev structure
- * @cfg: V4L2 subdev pad config
- * @fmt: pointer to v4l2 subdev format structure
- * return -EINVAL or zero on success
- */
 static int cio2_subdev_get_fmt(struct v4l2_subdev *sd,
 			       struct v4l2_subdev_state *sd_state,
 			       struct v4l2_subdev_format *fmt)
@@ -1231,8 +1224,8 @@ static int cio2_subdev_get_fmt(struct v4l2_subdev *sd,
 	mutex_lock(&q->subdev_lock);
 
 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
-		fmt->format = *v4l2_subdev_get_try_format(sd, sd_state,
-							  fmt->pad);
+		fmt->format = *v4l2_subdev_state_get_format(sd_state,
+							    fmt->pad);
 	else
 		fmt->format = q->subdev_fmt;
 
@@ -1241,13 +1234,6 @@ static int cio2_subdev_get_fmt(struct v4l2_subdev *sd,
 	return 0;
 }
 
-/*
- * cio2_subdev_set_fmt - Handle set format by pads subdev method
- * @sd : pointer to v4l2 subdev structure
- * @cfg: V4L2 subdev pad config
- * @fmt: pointer to v4l2 subdev format structure
- * return -EINVAL or zero on success
- */
 static int cio2_subdev_set_fmt(struct v4l2_subdev *sd,
 			       struct v4l2_subdev_state *sd_state,
 			       struct v4l2_subdev_format *fmt)
@@ -1265,7 +1251,7 @@ static int cio2_subdev_set_fmt(struct v4l2_subdev *sd,
 		return cio2_subdev_get_fmt(sd, sd_state, fmt);
 
 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
-		mbus = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
+		mbus = v4l2_subdev_state_get_format(sd_state, fmt->pad);
 	else
 		mbus = &q->subdev_fmt;
 
@@ -1603,7 +1589,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
 	vbq->mem_ops = &vb2_dma_sg_memops;
 	vbq->buf_struct_size = sizeof(struct cio2_buffer);
 	vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-	vbq->min_buffers_needed = 1;
+	vbq->min_queued_buffers = 1;
 	vbq->drv_priv = cio2;
 	vbq->lock = &q->lock;
 	r = vb2_queue_init(vbq);
diff --git a/drivers/media/pci/intel/ivsc/mei_csi.c b/drivers/media/pci/intel/ivsc/mei_csi.c
index 2a6b828fd8dd..15b905f66ab7 100644
--- a/drivers/media/pci/intel/ivsc/mei_csi.c
+++ b/drivers/media/pci/intel/ivsc/mei_csi.c
@@ -338,7 +338,7 @@ mei_csi_get_pad_format(struct v4l2_subdev *sd,
 
 	switch (which) {
 	case V4L2_SUBDEV_FORMAT_TRY:
-		return v4l2_subdev_get_try_format(sd, sd_state, pad);
+		return v4l2_subdev_state_get_format(sd_state, pad);
 	case V4L2_SUBDEV_FORMAT_ACTIVE:
 		return &csi->format_mbus[pad];
 	default:
@@ -346,8 +346,8 @@ mei_csi_get_pad_format(struct v4l2_subdev *sd,
 	}
 }
 
-static int mei_csi_init_cfg(struct v4l2_subdev *sd,
-			    struct v4l2_subdev_state *sd_state)
+static int mei_csi_init_state(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state)
 {
 	struct v4l2_mbus_framefmt *mbusformat;
 	struct mei_csi *csi = sd_to_csi(sd);
@@ -356,7 +356,7 @@ static int mei_csi_init_cfg(struct v4l2_subdev *sd,
 	mutex_lock(&csi->lock);
 
 	for (i = 0; i < sd->entity.num_pads; i++) {
-		mbusformat = v4l2_subdev_get_try_format(sd, sd_state, i);
+		mbusformat = v4l2_subdev_state_get_format(sd_state, i);
 		*mbusformat = mei_csi_format_mbus_default;
 	}
 
@@ -554,7 +554,6 @@ static const struct v4l2_subdev_video_ops mei_csi_video_ops = {
 };
 
 static const struct v4l2_subdev_pad_ops mei_csi_pad_ops = {
-	.init_cfg = mei_csi_init_cfg,
 	.get_fmt = mei_csi_get_fmt,
 	.set_fmt = mei_csi_set_fmt,
 };
@@ -564,6 +563,10 @@ static const struct v4l2_subdev_ops mei_csi_subdev_ops = {
 	.pad = &mei_csi_pad_ops,
 };
 
+static const struct v4l2_subdev_internal_ops mei_csi_internal_ops = {
+	.init_state = mei_csi_init_state,
+};
+
 static const struct media_entity_operations mei_csi_entity_ops = {
 	.link_validate = v4l2_subdev_link_validate,
 };
@@ -645,47 +648,66 @@ static int mei_csi_parse_firmware(struct mei_csi *csi)
 	};
 	struct device *dev = &csi->cldev->dev;
 	struct v4l2_async_connection *asd;
-	struct fwnode_handle *fwnode;
-	struct fwnode_handle *ep;
+	struct fwnode_handle *sink_ep, *source_ep;
 	int ret;
 
-	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, 0);
-	if (!ep) {
-		dev_err(dev, "not connected to subdevice\n");
+	sink_ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, 0);
+	if (!sink_ep) {
+		dev_err(dev, "can't obtain sink endpoint\n");
 		return -EINVAL;
 	}
 
-	ret = v4l2_fwnode_endpoint_parse(ep, &v4l2_ep);
+	v4l2_async_subdev_nf_init(&csi->notifier, &csi->subdev);
+	csi->notifier.ops = &mei_csi_notify_ops;
+
+	ret = v4l2_fwnode_endpoint_parse(sink_ep, &v4l2_ep);
 	if (ret) {
-		dev_err(dev, "could not parse v4l2 endpoint\n");
-		fwnode_handle_put(ep);
-		return -EINVAL;
+		dev_err(dev, "could not parse v4l2 sink endpoint\n");
+		goto out_nf_cleanup;
 	}
 
-	fwnode = fwnode_graph_get_remote_endpoint(ep);
-	fwnode_handle_put(ep);
+	csi->nr_of_lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes;
 
-	v4l2_async_subdev_nf_init(&csi->notifier, &csi->subdev);
-	csi->notifier.ops = &mei_csi_notify_ops;
+	source_ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 1, 0, 0);
+	if (!source_ep) {
+		ret = -ENOTCONN;
+		dev_err(dev, "can't obtain source endpoint\n");
+		goto out_nf_cleanup;
+	}
 
-	asd = v4l2_async_nf_add_fwnode(&csi->notifier, fwnode,
-				       struct v4l2_async_connection);
-	if (IS_ERR(asd)) {
-		fwnode_handle_put(fwnode);
-		return PTR_ERR(asd);
+	ret = v4l2_fwnode_endpoint_parse(source_ep, &v4l2_ep);
+	fwnode_handle_put(source_ep);
+	if (ret) {
+		dev_err(dev, "could not parse v4l2 source endpoint\n");
+		goto out_nf_cleanup;
 	}
 
-	ret = v4l2_fwnode_endpoint_alloc_parse(fwnode, &v4l2_ep);
-	fwnode_handle_put(fwnode);
-	if (ret)
-		return ret;
-	csi->nr_of_lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes;
+	if (csi->nr_of_lanes != v4l2_ep.bus.mipi_csi2.num_data_lanes) {
+		ret = -EINVAL;
+		dev_err(dev,
+			"the number of lanes does not match (%u vs. %u)\n",
+			csi->nr_of_lanes, v4l2_ep.bus.mipi_csi2.num_data_lanes);
+		goto out_nf_cleanup;
+	}
+
+	asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, sink_ep,
+					      struct v4l2_async_connection);
+	if (IS_ERR(asd)) {
+		ret = PTR_ERR(asd);
+		goto out_nf_cleanup;
+	}
 
 	ret = v4l2_async_nf_register(&csi->notifier);
 	if (ret)
-		v4l2_async_nf_cleanup(&csi->notifier);
+		goto out_nf_cleanup;
+
+	fwnode_handle_put(sink_ep);
 
-	v4l2_fwnode_endpoint_free(&v4l2_ep);
+	return 0;
+
+out_nf_cleanup:
+	v4l2_async_nf_cleanup(&csi->notifier);
+	fwnode_handle_put(sink_ep);
 
 	return ret;
 }
@@ -728,6 +750,7 @@ static int mei_csi_probe(struct mei_cl_device *cldev,
 
 	csi->subdev.dev = &cldev->dev;
 	v4l2_subdev_init(&csi->subdev, &mei_csi_subdev_ops);
+	csi->subdev.internal_ops = &mei_csi_internal_ops;
 	v4l2_set_subdevdata(&csi->subdev, csi);
 	csi->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE |
 			    V4L2_SUBDEV_FL_HAS_EVENTS;
diff --git a/drivers/media/pci/ivtv/ivtv-driver.h b/drivers/media/pci/ivtv/ivtv-driver.h
index ce3a7ca51736..a6ffa99e16bc 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.h
+++ b/drivers/media/pci/ivtv/ivtv-driver.h
@@ -619,6 +619,7 @@ struct ivtv {
 	u32 hw_flags;			/* hardware description of the board */
 	v4l2_std_id tuner_std;		/* the norm of the card's tuner (fixed) */
 	struct v4l2_subdev *sd_video;	/* controlling video decoder subdev */
+	bool sd_video_is_streaming;	/* is video already streaming? */
 	struct v4l2_subdev *sd_audio;	/* controlling audio subdev */
 	struct v4l2_subdev *sd_muxer;	/* controlling audio muxer subdev */
 	resource_size_t base_addr;      /* PCI resource base address */
diff --git a/drivers/media/pci/ivtv/ivtv-streams.c b/drivers/media/pci/ivtv/ivtv-streams.c
index 13d7d55e6594..af9e6235c74d 100644
--- a/drivers/media/pci/ivtv/ivtv-streams.c
+++ b/drivers/media/pci/ivtv/ivtv-streams.c
@@ -623,10 +623,12 @@ int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s)
 		/* Avoid tinny audio problem - ensure audio clocks are going */
 		v4l2_subdev_call(itv->sd_audio, audio, s_stream, 1);
 		/* Avoid unpredictable PCI bus hang - disable video clocks */
-		v4l2_subdev_call(itv->sd_video, video, s_stream, 0);
+		if (itv->sd_video_is_streaming)
+			v4l2_subdev_call(itv->sd_video, video, s_stream, 0);
 		ivtv_msleep_timeout(300, 0);
 		ivtv_vapi(itv, CX2341X_ENC_INITIALIZE_INPUT, 0);
 		v4l2_subdev_call(itv->sd_video, video, s_stream, 1);
+		itv->sd_video_is_streaming = true;
 	}
 
 	/* begin_capture */
diff --git a/drivers/media/pci/mgb4/mgb4_vin.c b/drivers/media/pci/mgb4/mgb4_vin.c
index d72b07b87cd1..2cd78c539889 100644
--- a/drivers/media/pci/mgb4/mgb4_vin.c
+++ b/drivers/media/pci/mgb4/mgb4_vin.c
@@ -849,7 +849,7 @@ struct mgb4_vin_dev *mgb4_vin_create(struct mgb4_dev *mgbdev, int id)
 	vindev->queue.mem_ops = &vb2_dma_sg_memops;
 	vindev->queue.gfp_flags = GFP_DMA32;
 	vindev->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-	vindev->queue.min_buffers_needed = 2;
+	vindev->queue.min_queued_buffers = 2;
 	vindev->queue.drv_priv = vindev;
 	vindev->queue.lock = &vindev->lock;
 	vindev->queue.dev = dev;
diff --git a/drivers/media/pci/mgb4/mgb4_vout.c b/drivers/media/pci/mgb4/mgb4_vout.c
index 857fc7bbd21a..241353ee77a5 100644
--- a/drivers/media/pci/mgb4/mgb4_vout.c
+++ b/drivers/media/pci/mgb4/mgb4_vout.c
@@ -523,7 +523,7 @@ struct mgb4_vout_dev *mgb4_vout_create(struct mgb4_dev *mgbdev, int id)
 	voutdev->queue.mem_ops = &vb2_dma_sg_memops;
 	voutdev->queue.gfp_flags = GFP_DMA32;
 	voutdev->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-	voutdev->queue.min_buffers_needed = 2;
+	voutdev->queue.min_queued_buffers = 2;
 	voutdev->queue.drv_priv = voutdev;
 	voutdev->queue.lock = &voutdev->lock;
 	voutdev->queue.dev = dev;
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index d85bfbb77a25..557985ba25db 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -293,12 +293,13 @@ static int netup_unidvb_queue_setup(struct vb2_queue *vq,
 				    struct device *alloc_devs[])
 {
 	struct netup_dma *dma = vb2_get_drv_priv(vq);
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
 	dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
 
 	*nplanes = 1;
-	if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
-		*nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < VIDEO_MAX_FRAME)
+		*nbuffers = VIDEO_MAX_FRAME - q_num_bufs;
 	sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
 	dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
 		__func__, *nbuffers, sizes[0]);
diff --git a/drivers/media/pci/tw5864/tw5864-video.c b/drivers/media/pci/tw5864/tw5864-video.c
index 197ed8978102..8b1aae4b6319 100644
--- a/drivers/media/pci/tw5864/tw5864-video.c
+++ b/drivers/media/pci/tw5864/tw5864-video.c
@@ -1114,7 +1114,7 @@ static int tw5864_video_input_init(struct tw5864_input *input, int video_nr)
 	input->vidq.gfp_flags = 0;
 	input->vidq.buf_struct_size = sizeof(struct tw5864_buf);
 	input->vidq.lock = &input->lock;
-	input->vidq.min_buffers_needed = 2;
+	input->vidq.min_queued_buffers = 2;
 	input->vidq.dev = &input->root->pci->dev;
 	ret = vb2_queue_init(&input->vidq);
 	if (ret)
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 773a18702d36..cdf5d733b863 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -360,13 +360,14 @@ static int tw68_queue_setup(struct vb2_queue *q,
 			   unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct tw68_dev *dev = vb2_get_drv_priv(q);
-	unsigned tot_bufs = q->num_buffers + *num_buffers;
+	unsigned int q_num_bufs = vb2_get_num_buffers(q);
+	unsigned int tot_bufs = q_num_bufs + *num_buffers;
 	unsigned size = (dev->fmt->depth * dev->width * dev->height) >> 3;
 
 	if (tot_bufs < 2)
 		tot_bufs = 2;
 	tot_bufs = tw68_buffer_count(size, tot_bufs);
-	*num_buffers = tot_bufs - q->num_buffers;
+	*num_buffers = tot_bufs - q_num_bufs;
 	/*
 	 * We allow create_bufs, but only if the sizeimage is >= as the
 	 * current sizeimage. The tw68_buffer_count calculation becomes quite
@@ -951,7 +952,7 @@ int tw68_video_init2(struct tw68_dev *dev, int video_nr)
 	dev->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM;
 	dev->vidq.buf_struct_size = sizeof(struct tw68_buf);
 	dev->vidq.lock = &dev->lock;
-	dev->vidq.min_buffers_needed = 2;
+	dev->vidq.min_queued_buffers = 2;
 	dev->vidq.dev = &dev->pci->dev;
 	ret = vb2_queue_init(&dev->vidq);
 	if (ret)
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c
index 3ebf7a2c95f0..63be95fce83d 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -423,6 +423,7 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
 			      unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct tw686x_video_channel *vc = vb2_get_drv_priv(vq);
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 	unsigned int szimage =
 		(vc->width * vc->height * vc->format->depth) >> 3;
 
@@ -430,8 +431,8 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
 	 * Let's request at least three buffers: two for the
 	 * DMA engine and one for userspace.
 	 */
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	if (*nplanes) {
 		if (*nplanes != 1 || sizes[0] < szimage)
@@ -1221,7 +1222,7 @@ int tw686x_video_init(struct tw686x_dev *dev)
 		vc->vidq.ops = &tw686x_video_qops;
 		vc->vidq.mem_ops = dev->dma_ops->mem_ops;
 		vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-		vc->vidq.min_buffers_needed = 2;
+		vc->vidq.min_queued_buffers = 2;
 		vc->vidq.lock = &vc->vb_mutex;
 		vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ?
 				     GFP_DMA32 : 0;
diff --git a/drivers/media/pci/zoran/zoran_driver.c b/drivers/media/pci/zoran/zoran_driver.c
index fa672cc8bc67..5c05e64c71a9 100644
--- a/drivers/media/pci/zoran/zoran_driver.c
+++ b/drivers/media/pci/zoran/zoran_driver.c
@@ -749,8 +749,8 @@ static int zr_vb2_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsi
 
 	zr->buf_in_reserve = 0;
 
-	if (*nbuffers < vq->min_buffers_needed)
-		*nbuffers = vq->min_buffers_needed;
+	if (*nbuffers < vq->min_queued_buffers)
+		*nbuffers = vq->min_queued_buffers;
 
 	if (*nplanes) {
 		if (sizes[0] < size)
@@ -971,7 +971,7 @@ int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir)
 	vq->mem_ops = &vb2_dma_contig_memops;
 	vq->gfp_flags = GFP_DMA32;
 	vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-	vq->min_buffers_needed = 9;
+	vq->min_queued_buffers = 9;
 	vq->lock = &zr->lock;
 	err = vb2_queue_init(vq);
 	if (err)