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2c22584627
Add a v4l2_fill_pixfmt_mp_aligned helper which allows the user to specify a custom stride alignment in bytes. This is necessary for hardware like the Rockchip RGA3, which requires the stride value to be aligned to a 16 bytes boundary. The code makes some assumptions about the v4l2 format to simplify the calculation. They currently hold for all known v4l2 formats. v4l2_format_plane_stride uses an unsigned int as argument type to avoid the later multiplication from overflowing the u8 value. All other places use u8, as no practical use cases for a larger alignment are known at the moment. Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>