* [PATCH] arm64: dts: qcom: sdm845: use dispcc AHB clock for mdss node
@ 2022-05-31 12:47 Dmitry Baryshkov
2022-06-27 20:02 ` (subset) " Bjorn Andersson
0 siblings, 1 reply; 2+ messages in thread
From: Dmitry Baryshkov @ 2022-05-31 12:47 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Rob Herring, Krzysztof Kozlowski
Cc: linux-arm-msm, devicetree, Abhinav Kumar, Taniya Das, freedreno
It was noticed that on sdm845 after an MDSS suspend/resume cycle the
driver can not read HW_REV registers properly (they will return 0
instead). Chaning the "iface" clock from <&gcc GCC_DISP_AHB_CLK> to
<&dispcc DISP_CC_MDSS_AHB_CLK> fixes the issue.
Fixes: 08c2a076d18f ("arm64: dts: qcom: sdm845: Add dpu to sdm845 dts file")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index b31bf62e8680..ad21cf465c98 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -4238,7 +4238,7 @@ mdss: mdss@ae00000 {
power-domains = <&dispcc MDSS_GDSC>;
- clocks = <&gcc GCC_DISP_AHB_CLK>,
+ clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
<&dispcc DISP_CC_MDSS_MDP_CLK>;
clock-names = "iface", "core";
--
2.35.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: (subset) [PATCH] arm64: dts: qcom: sdm845: use dispcc AHB clock for mdss node
2022-05-31 12:47 [PATCH] arm64: dts: qcom: sdm845: use dispcc AHB clock for mdss node Dmitry Baryshkov
@ 2022-06-27 20:02 ` Bjorn Andersson
0 siblings, 0 replies; 2+ messages in thread
From: Bjorn Andersson @ 2022-06-27 20:02 UTC (permalink / raw)
To: Rob Herring, Andy Gross, Krzysztof Kozlowski, Dmitry Baryshkov
Cc: freedreno, linux-arm-msm, Abhinav Kumar, devicetree, Taniya Das
On Tue, 31 May 2022 15:47:35 +0300, Dmitry Baryshkov wrote:
> It was noticed that on sdm845 after an MDSS suspend/resume cycle the
> driver can not read HW_REV registers properly (they will return 0
> instead). Chaning the "iface" clock from <&gcc GCC_DISP_AHB_CLK> to
> <&dispcc DISP_CC_MDSS_AHB_CLK> fixes the issue.
>
>
Applied, thanks!
[1/1] arm64: dts: qcom: sdm845: use dispcc AHB clock for mdss node
commit: 3ba500dee327e0261e728edec8a4f2f563d2760c
Best regards,
--
Bjorn Andersson <bjorn.andersson@linaro.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-05-31 12:47 [PATCH] arm64: dts: qcom: sdm845: use dispcc AHB clock for mdss node Dmitry Baryshkov
2022-06-27 20:02 ` (subset) " Bjorn Andersson
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