diff mbox series

arm64: dts: hi3660: Add property for fixing CPUIdle

Message ID 20250310093708.9332-1-leo.yan@arm.com (mailing list archive)
State New
Headers show
Series arm64: dts: hi3660: Add property for fixing CPUIdle | expand

Commit Message

Leo Yan March 10, 2025, 9:37 a.m. UTC 
During CPU low power modes, ETM components will lose their context.  Add
the "arm,coresight-loses-context-with-cpu" property to ETM nodes to save
and restore ETM context for CPU idle states.

Signed-off-by: Leo Yan <leo.yan@arm.com>
---
 arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
index 79a55a0fa2f1..4c6a075908d1 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
@@ -17,6 +17,7 @@  etm@ecc40000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu0>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -34,6 +35,7 @@  etm@ecd40000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu1>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -51,6 +53,7 @@  etm@ece40000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu2>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -68,6 +71,7 @@  etm@ecf40000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu3>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -160,6 +164,7 @@  etm@ed440000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu4>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -177,6 +182,7 @@  etm@ed540000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu5>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -194,6 +200,7 @@  etm@ed640000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu6>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -211,6 +218,7 @@  etm@ed740000 {
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu7>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {