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| author | Jernej Skrabec <jernej.skrabec@gmail.com> | 2026-08-03 18:10:39 +0200 |
|---|---|---|
| committer | Chen-Yu Tsai <wens@kernel.org> | 2026-08-06 14:22:50 +0800 |
| commit | abffce8b1eb5e119efccc51fc6a18ba38e2f6db6 (patch) | |
| tree | e0aca29d8768b0f4f69b74c863ad5aa7af1d37d4 /drivers/gpu | |
| parent | 2d5e8c2167ab7af17535cd7a6f5bda995e85c7b2 (diff) | |
| download | linux-abffce8b1eb5e119efccc51fc6a18ba38e2f6db6.tar.gz linux-abffce8b1eb5e119efccc51fc6a18ba38e2f6db6.zip | |
drm/sun4i: Fix V3s YUV scanline size
The VI scaler line buffer on V3s can hold 1024 pixels for subsampled
formats, not 2048 as currently claimed. Since coarse horizontal scaling
is engaged only once the source width exceeds that limit, YUV layers
wider than 1024 pixels are passed to the scaler unchanged and the
output is corrupted.
Use the value from the vendor driver.
Fixes: 2586de70c15c ("drm/sun4i: Add VI scaler line size quirk for DE2/DE3")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Chen-Yu Tsai <wens@kernel.org>
Link: https://patch.msgid.link/75ad4947981f2dc33fd42c05ae0b0cedda7647bd.1785772659.git.jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c index 4e4226295010..b6cd7352e76c 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -785,7 +785,7 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = { .de_type = SUN8I_MIXER_DE2, .vi_scaler_num = 2, .scaler_mask = 0x3, - .scanline_yuv = 2048, + .scanline_yuv = 1024, }, .de_type = SUN8I_MIXER_DE2, .mod_rate = 150000000, |