arm64: dts: msm8916: Properly deal with ETMv4 power management (ef71fdb2) · Commits · 戴 / test

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 −0

Original line number	Diff line number	Diff line
		@@ -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>;

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