| Message ID | 20221124004801.361232-3-bryan.odonoghue@linaro.org |
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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
devicetree@vger.kernel.org
Cc: robdclark@gmail.com, quic_abhinavk@quicinc.com,
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Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH v3 02/18] dt-bindings: msm: dsi-controller-main: Fix
power-domain constraint
Date: Thu, 24 Nov 2022 00:47:45 +0000
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| Series |
mdss-dsi-ctrl binding and dts fixes
|
|
Commit Message
Bryan O'Donoghue
Nov. 24, 2022, 12:47 a.m. UTC
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>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.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(-)
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