diff mbox series

[v2,5/7] arm64: dts: freescale: imx95: enable A55 cpuidle

Message ID 20240903-imx95-dts-new-v2-5-8ed795d61358@nxp.com (mailing list archive)
State New
Headers show
Series arm64: dts: freescale: imx95: add various nodes | expand

Commit Message

Peng Fan (OSS) Sept. 3, 2024, 7:17 a.m. UTC 
From: Peng Fan <peng.fan@nxp.com>

Add cpuidle node and enable cpuidle for A55.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx95.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index d031b9548aaf..a7e411f1daa6 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -22,12 +22,27 @@  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>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -45,6 +60,7 @@  A55_1: cpu@100 {
 			reg = <0x100>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -62,6 +78,7 @@  A55_2: cpu@200 {
 			reg = <0x200>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -79,6 +96,7 @@  A55_3: cpu@300 {
 			reg = <0x300>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -98,6 +116,7 @@  A55_4: cpu@400 {
 			power-domain-names = "perf";
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			i-cache-size = <32768>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <128>;
@@ -115,6 +134,7 @@  A55_5: cpu@500 {
 			power-domain-names = "perf";
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			i-cache-size = <32768>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <128>;