mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-03-12 01:24:40 -04:00
Exynos4x12 has limitations regarding setting chroma subsampling of an output JPEG image. It cannot be lower than the subsampling of the raw source image. Also in case of V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY option the source image fourcc has to be V4L2_PIX_FMT_GREY. This patch implements try_ctrl callback containing mechanism that prevents setting invalid value of the V4L2_CID_JPEG_CHROMA_SUBSAMPLING control. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>