From ef71fdb266d78bc800877978ad982e2f004b7bee Mon Sep 17 00:00:00 2001 From: Mathieu Poirier <mathieu.poirier@linaro.org> Date: Tue, 11 Feb 2020 11:30:11 -0700 Subject: [PATCH] arm64: dts: msm8916: Properly deal with ETMv4 power management Properly deal with ETMv4 power management by adding the "coresight-loses-context-with-cpu" property. Otherwise tracer configuration is lost when CPUs enter deep idle states, resulting in the failure of the trace session. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200211183011.24720-1-mathieu.poirier@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- arch/arm64/boot/dts/qcom/msm8916.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index 9f31064f2374e..cabfa3547d283 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -1415,6 +1415,7 @@ clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>; clock-names = "apb_pclk", "atclk"; + arm,coresight-loses-context-with-cpu; cpu = <&CPU0>; @@ -1433,6 +1434,7 @@ clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>; clock-names = "apb_pclk", "atclk"; + arm,coresight-loses-context-with-cpu; cpu = <&CPU1>; @@ -1451,6 +1453,7 @@ clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>; clock-names = "apb_pclk", "atclk"; + arm,coresight-loses-context-with-cpu; cpu = <&CPU2>; @@ -1469,6 +1472,7 @@ clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>; clock-names = "apb_pclk", "atclk"; + arm,coresight-loses-context-with-cpu; cpu = <&CPU3>; -- 2.30.2