On Tue, Sep 13, 2022 at 03:43:06PM +0100, Brian Starkey wrote:
> These formats are not subsampled, but that means hsub and vsub should be
> 1, not 0.
>
> Fixes: 94b292b27734 ("drm: drm_fourcc: add NV15, Q410, Q401 YUV formats")
> Reported-by: George Kennedy <george.kenn...@oracle.com>
> Reported-by: butt3rflyh4ck <butterflyhuan...@gmail.com>
> Signed-off-by: Brian Starkey <brian.star...@arm.com>
Reviewed-by: Liviu Dudau <liviu.du...@arm.com>
Should this be backported into stable releases? How far back to we go?
Best regards,
Liviu
> ---
> drivers/gpu/drm/drm_fourcc.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> Sorry, I lost track of this - I thought it got fixed after the previous
> thread[1].
>
> -Brian
>
> [1]
> https://lore.kernel.org/all/26fdb955-10c8-a5d6-07b6-85a4374e7...@oracle.com/
>
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index 07741b678798..6768b7d18b6f 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -263,12 +263,12 @@ const struct drm_format_info *__drm_format_info(u32
> format)
> .vsub = 2, .is_yuv = true },
> { .format = DRM_FORMAT_Q410, .depth = 0,
> .num_planes = 3, .char_per_block = { 2, 2, 2 },
> - .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
> - .vsub = 0, .is_yuv = true },
> + .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
> + .vsub = 1, .is_yuv = true },
> { .format = DRM_FORMAT_Q401, .depth = 0,
> .num_planes = 3, .char_per_block = { 2, 2, 2 },
> - .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
> - .vsub = 0, .is_yuv = true },
> + .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
> + .vsub = 1, .is_yuv = true },
> { .format = DRM_FORMAT_P030, .depth = 0,
> .num_planes = 2,
> .char_per_block = { 4, 8, 0 }, .block_w = { 3, 3, 0 },
> .block_h = { 1, 1, 0 },
> .hsub = 2, .vsub = 2, .is_yuv = true},
> --
> 2.25.1
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
