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drm/sun4i: Fix V3s YUV scanline size

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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: 2586de70c1 ("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>
This commit is contained in:
Jernej Skrabec 2026-08-03 18:10:39 +02:00 committed by Chen-Yu Tsai
parent 2d5e8c2167
commit abffce8b1e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/sun4i/sun8i_mixer.c
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@ -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,