linux-kernel - Re: [PATCH 6/6] drm/msm/dpu: Disable broken YUV on QSEED2 hardware

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Message-ID: <uoavlz3rejw4ntnyq5kwf3fy7zjtbnrldqvwj5tqtahee6kxne@nhx5wgo4zizv>
Date: Wed, 29 Oct 2025 00:14:09 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Vladimir Lypak <vladimir.lypak@...il.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Kalyan Thota <quic_kalyant@...cinc.com>,
        Vinod Polimera <quic_vpolimer@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Barnabás Czémán <barnabas.czeman@...nlining.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] drm/msm/dpu: Disable broken YUV on QSEED2 hardware

On Sat, Oct 18, 2025 at 02:33:43PM +0000, Vladimir Lypak wrote:
> YUV formats on this hardware needs scaling for chroma planes. However it
> is not implemented for QSEED2 which breaks display pipeline if YUV format
> is used (causing partial and corrupted output with PPDONE timeouts).
> This patch temporarily disables YUV by switching affected sub-block to
> RGB only format list.
> 
> Fixes: daf9a92daeb8 ("drm/msm/dpu: Add support for MSM8996")
> Signed-off-by: Vladimir Lypak <vladimir.lypak@...il.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry