[media] v4l: Add support for DV timings ioctls on subdev nodes

Validate the pad field in the core code whenever specified.

Signed-off-by: Laurent Pinchart <[email protected]>
Reviewed-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
4 files changed