[PATCH] arm64: dts: msm8916: Properly deal with ETMv4 power management

[Mathieu Poirier]

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@xxxxxxxxxx>
---
 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 8686e101905c..846c5b4a53e8 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -1363,6 +1363,7 @@
 
 			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
 			clock-names = "apb_pclk", "atclk";
+			arm,coresight-loses-context-with-cpu;
 
 			cpu = <&CPU0>;
 
@@ -1381,6 +1382,7 @@
 
 			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
 			clock-names = "apb_pclk", "atclk";
+			arm,coresight-loses-context-with-cpu;
 
 			cpu = <&CPU1>;
 
@@ -1399,6 +1401,7 @@
 
 			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
 			clock-names = "apb_pclk", "atclk";
+			arm,coresight-loses-context-with-cpu;
 
 			cpu = <&CPU2>;
 
@@ -1417,6 +1420,7 @@
 
 			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
 			clock-names = "apb_pclk", "atclk";
+			arm,coresight-loses-context-with-cpu;
 
 			cpu = <&CPU3>;
 
-- 
2.20.1