diff mbox series

[4/5] arm64: dts: imx93: add cpuidle node

Message ID 20230510083153.3769140-5-peng.fan@oss.nxp.com
State New
Headers show
Series [1/5] arm64: dts: imx93: add watchdog node | expand

Commit Message

Peng Fan (OSS) May 10, 2023, 8:31 a.m. UTC 
From: Peng Fan <peng.fan@nxp.com>

Add cpuidle node to support cpu idle.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 5c5652ae4ee0..dc444ca394af 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -46,12 +46,27 @@  cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		idle-states {
+			entry-method = "psci";
+
+			cpu_pd_wait: cpu-pd-wait {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010033>;
+				local-timer-stop;
+				entry-latency-us = <10000>;
+				exit-latency-us = <7000>;
+				min-residency-us = <27000>;
+				wakeup-latency-us = <15000>;
+			};
+		};
+
 		A55_0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a55";
 			reg = <0x0>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 		};
 
 		A55_1: cpu@100 {
@@ -60,6 +75,7 @@  A55_1: cpu@100 {
 			reg = <0x100>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 		};
 
 	};