| Message ID | 20221107235654.1769462-3-bryan.odonoghue@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,01/18] dt-bindings: msm: dsi-controller-main: Fix operating-points-v2 constraint | expand |
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 <dmitry.baryshkov@linaro.org> > Cc: Rob Clark <robdclark@gmail.com> > Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> > Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > Cc: Sean Paul <sean@poorly.run> > Cc: David Airlie <airlied@gmail.com> > Cc: Daniel Vetter <daniel@ffwll.ch> > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> > 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 <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml index 27ebfd5ffb22f..cf782c5f5bdb0 100644 --- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml +++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml @@ -134,7 +134,6 @@ required: - phys - assigned-clocks - assigned-clock-parents - - power-domains - ports additionalProperties: false
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 <dmitry.baryshkov@linaro.org> Cc: Rob Clark <robdclark@gmail.com> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rob Herring <robh+dt@kernel.org> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> 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 Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> --- .../devicetree/bindings/display/msm/dsi-controller-main.yaml | 1 - 1 file changed, 1 deletion(-)