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From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: devicetree@vger.kernel.org,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Mike Leach <mike.leach@linaro.org>
Subject: [PATCH] arm64: dts: qcom: sdm845: Support ETMv4 power management
Date: Tue, 21 Jul 2020 12:43:43 +0530	[thread overview]
Message-ID: <20200721071343.2898-1-saiprakash.ranjan@codeaurora.org> (raw)

Add "arm,coresight-loses-context-with-cpu" property to coresight
ETM nodes to avoid failure of trace session because of losing
context on entering deep idle states.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index e506793407d8..0b5f063dcaea 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3016,6 +3016,7 @@ etm@7040000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3035,6 +3036,7 @@ etm@7140000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3054,6 +3056,7 @@ etm@7240000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3073,6 +3076,7 @@ etm@7340000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3092,6 +3096,7 @@ etm@7440000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3111,6 +3116,7 @@ etm@7540000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3130,6 +3136,7 @@ etm@7640000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -3149,6 +3156,7 @@ etm@7740000 {
 
 			clocks = <&aoss_qmp>;
 			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation


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             reply	other threads:[~2020-07-21  7:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-21  7:13 Sai Prakash Ranjan [this message]
2020-07-21 15:01 ` [PATCH] arm64: dts: qcom: sdm845: Support ETMv4 power management Mathieu Poirier

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