From abffce8b1eb5e119efccc51fc6a18ba38e2f6db6 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 3 Aug 2026 18:10:39 +0200 Subject: [PATCH] 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 Acked-by: Chen-Yu Tsai Link: https://patch.msgid.link/75ad4947981f2dc33fd42c05ae0b0cedda7647bd.1785772659.git.jernej.skrabec@gmail.com Signed-off-by: Chen-Yu Tsai --- drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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,