Re: [PATCH 01/13] drm/sun4i: Fix V3s YUV scanline size

Chen-Yu Tsai <[email protected]> Tue, 4 Aug 2026 00:13:27 +0800

Newsgroups	org.infradead.lists.linux-arm-kernel,dev.linux.lists.linux-sunxi,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-kernel
Message-ID	<CAGb2v66AJ1Oucec-gZue_SU_q2s4K8oB5=8rvOgcGPaXKuk0gA@mail.gmail.com>

On Tue, Aug 4, 2026 at 12:11 AM Jernej Skrabec <[email protected]> wrote:
>
> 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 <[email protected]>

Acked-by: Chen-Yu Tsai <[email protected]>