[media] vb2: drop v4l2_format argument from queue_setup

The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.

After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.

To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index 276beaefca7c..8889b299a742 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -469,21 +469,15 @@ static void mx2_camera_clock_stop(struct soc_camera_host *ici)
  *  Videobuf operations
  */
 static int mx2_videobuf_setup(struct vb2_queue *vq,
-			const void *parg,
 			unsigned int *count, unsigned int *num_planes,
 			unsigned int sizes[], void *alloc_ctxs[])
 {
-	const struct v4l2_format *fmt = parg;
 	struct soc_camera_device *icd = soc_camera_from_vb2q(vq);
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 	struct mx2_camera_dev *pcdev = ici->priv;
 
 	dev_dbg(icd->parent, "count=%d, size=%d\n", *count, sizes[0]);
 
-	/* TODO: support for VIDIOC_CREATE_BUFS not ready */
-	if (fmt != NULL)
-		return -ENOTTY;
-
 	alloc_ctxs[0] = pcdev->alloc_ctx;
 
 	sizes[0] = icd->sizeimage;