linux-kernel - Re: [PATCH v2 02/17] drm/msm/dpu: Remove TE2 block and feature from DPU >= 7.0.0 hardware

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Message-ID: <0eb8eaf7-7649-13a1-edc4-049fd0f51dcb@linaro.org>
Date:   Thu, 20 Apr 2023 03:44:58 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Adam Skladowski <a39.skl@...il.com>,
        Loic Poulain <loic.poulain@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Robert Foss <rfoss@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Rajesh Yadav <ryadav@...eaurora.org>,
        Jeykumar Sankaran <jsanka@...eaurora.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Chandan Uddaraju <chandanu@...eaurora.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Jordan Crouse <jordan@...micpenguin.net>,
        Archit Taneja <architt@...eaurora.org>,
        Sravanthi Kollukuduru <skolluku@...eaurora.org>
Subject: Re: [PATCH v2 02/17] drm/msm/dpu: Remove TE2 block and feature from
 DPU >= 7.0.0 hardware

On 17/04/2023 23:21, Marijn Suijten wrote:
> No hardware beyond kona (sm8250) defines the TE2 PINGPONG sub-block
> offset downstream.  Even though neither downstream nor upstream utilizes
> these registers in any way, remove the erroneous specification for
> SC8280XP, SM8350 and SM8450 to prevent confusion.
> 
> Note that downstream enables the PPSPLIT (split-FIFO) topology (single
> LM for 2 PP and 2 INTF) based on the presence of a TE2 block.
> 
> Fixes: f0a1bdf64dd7 ("drm/msm/dpu: Introduce SC8280XP")
> Fixes: 0a72f23f6ef8 ("drm/msm/dpu: Add SM8350 to hw catalog")
> Fixes: 8cbbc3396065 ("drm/msm/dpu: add support for SM8450")
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h   |  4 ++--
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h | 12 ++++++------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h   |  4 ++--
>   3 files changed, 10 insertions(+), 10 deletions(-)

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

-- 
With best wishes
Dmitry