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Message-ID: <b781b14a-0bc0-3e3a-e803-a54f24cd58d3@linaro.org>
Date:   Tue, 18 Apr 2023 15:30:39 +0200
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Subject: Re: [PATCH v2 1/5] dt-bindings: display/msm: Add reg bus interconnect
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To:     Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Clark <robdclark@gmail.com>,
        Abhinav Kumar <quic_abhinavk@quicinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
        Sean Paul <sean@poorly.run>, David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Krishna Manikandan <quic_mkrishn@quicinc.com>
Cc:     Marijn Suijten <marijn.suijten@somainline.org>,
        linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
        freedreno@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <20230417-topic-dpu_regbus-v2-0-91a66d04898e@linaro.org>
 <20230417-topic-dpu_regbus-v2-1-91a66d04898e@linaro.org>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20230417-topic-dpu_regbus-v2-1-91a66d04898e@linaro.org>
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On 18/04/2023 14:10, Konrad Dybcio wrote:
> Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there's
> another path that needs to be handled to ensure MDSS functions properly,
> namely the "reg bus", a.k.a the CPU-MDSS interconnect.
> 
> Gating that path may have a variety of effects.. from none to otherwise
> inexplicable DSI timeouts..
> 
> Describe it in bindings to allow for use in device trees.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof