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[88.156.142.199]) by smtp.gmail.com with ESMTPSA id q13-20020a056512210d00b0049c29292250sm1932529lfr.149.2022.11.08.13.10.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Nov 2022 13:10:30 -0800 (PST) Message-ID: Date: Tue, 8 Nov 2022 22:10:29 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 Subject: Re: [PATCH v2 02/18] dt-bindings: msm: dsi-controller-main: Fix power-domain constraint Content-Language: en-US To: Bryan O'Donoghue , robdclark@gmail.com, quic_abhinavk@quicinc.com, dmitry.baryshkov@linaro.org, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org, quic_mkrishn@quicinc.com, linux-arm-msm@vger.kernel.org Cc: Sean Paul , David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20221107235654.1769462-1-bryan.odonoghue@linaro.org> <20221107235654.1769462-3-bryan.odonoghue@linaro.org> From: Krzysztof Kozlowski In-Reply-To: <20221107235654.1769462-3-bryan.odonoghue@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 08/11/2022 00:56, Bryan O'Donoghue wrote: > power-domain is required for the sc7180 dispcc GDSC but not every qcom SoC > has a similar dependency for example the aqp8064. > > Most Qcom SoC's using mdss-dsi-ctrl seem to have the ability to > power-collapse the MDP without collapsing DSI. > > For example the qcom vendor kernel commit for apq8084, msm8226, msm8916, msm8974 > > https://review.carbonrom.org/plugins/gitiles/CarbonROM/android_kernel_oneplus_msm8994/+/7b5c011a770daa2811778937ed646237a28a8694 > > "ARM: dts: msm: add mdss gdsc supply to dsi controller device > > It is possible for the DSI controller to be active when MDP is > power collapsed. DSI controller needs to have it's own vote for > mdss gdsc to ensure that gdsc remains on in such cases." > > This however doesn't appear to be the case for the apq8064 so we shouldn't > be marking power-domain as required in yaml checks. > > Fixes: 4dbe55c97741 ("dt-bindings: msm: dsi: add yaml schemas for DSI bindings") > Reviewed-by: Dmitry Baryshkov > Cc: Rob Clark > Cc: Abhinav Kumar > Cc: Dmitry Baryshkov > Cc: Sean Paul > Cc: David Airlie > Cc: Daniel Vetter > Cc: Rob Herring > Cc: Krzysztof Kozlowski > Cc: linux-arm-msm@vger.kernel.org > Cc: dri-devel@lists.freedesktop.org > Cc: freedreno@lists.freedesktop.org > Cc: devicetree@vger.kernel.org > Cc: linux-kernel@vger.kernel.org Your Cc list is huge and not necessary to store in git log. For example I am appearing there twice. Please keep it under '---'. Acked-by: Krzysztof Kozlowski Best regards, Krzysztof