linux-kernel - Re: [PATCH v3 4/7] drm/msm/dpu: add PINGPONG

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Message-ID: <ebd22101-16de-f754-9304-6ce0532394c8@linaro.org>
Date:   Wed, 3 May 2023 00:21:48 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...il.com,
        agross@...nel.org, andersson@...nel.org
Cc:     quic_abhinavk@...cinc.com, quic_sbillaka@...cinc.com,
        marijn.suijten@...ainline.org, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/7] drm/msm/dpu: add PINGPONG_NONE to disconnect DSC
 from PINGPONG

On 03/05/2023 00:02, Kuogee Hsieh wrote:
> During DSC setup, the crossbar mux need to be programmed to engage
> DSC to specified PINGPONG. Hence during tear down, the crossbar mux
> need to be reset to disengage DSC from PINGPONG. This patch add
> PINGPONG_NONE to serve as disable to reset crossbar mux.
> 
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c  | 7 +++----
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h  | 1 -
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h | 3 ++-
>   4 files changed, 6 insertions(+), 7 deletions(-)
-- 
With best wishes
Dmitry