[PATCH v6 05/11] arm64: dts: qcom: ipq5210: Add C3 CPU idle state

[Varadarajan Narayanan]

Add the PSCI-backed C3 idle state for the Cortex-A53 CPUs and wire it to
all CPU nodes.

Signed-off-by: Varadarajan Narayanan <varadarajan.narayanan@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/ipq5210.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5210.dtsi b/arch/arm64/boot/dts/qcom/ipq5210.dtsi
index 3183182d1cc7..331589a9c1ff 100644
--- a/arch/arm64/boot/dts/qcom/ipq5210.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5210.dtsi
@@ -36,6 +36,7 @@ cpu0: cpu@0 {
 			compatible = "arm,cortex-a53";
 			reg = <0x0>;
 			enable-method = "psci";
+			cpu-idle-states = <&cpu_sleep_0>;
 			next-level-cache = <&l2_0>;
 			#cooling-cells = <2>;
 			clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
@@ -47,6 +48,7 @@ cpu1: cpu@1 {
 			compatible = "arm,cortex-a53";
 			reg = <0x1>;
 			enable-method = "psci";
+			cpu-idle-states = <&cpu_sleep_0>;
 			next-level-cache = <&l2_0>;
 			#cooling-cells = <2>;
 			clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
@@ -58,6 +60,7 @@ cpu2: cpu@2 {
 			compatible = "arm,cortex-a53";
 			reg = <0x2>;
 			enable-method = "psci";
+			cpu-idle-states = <&cpu_sleep_0>;
 			next-level-cache = <&l2_0>;
 			#cooling-cells = <2>;
 			clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
@@ -69,6 +72,7 @@ cpu3: cpu@3 {
 			compatible = "arm,cortex-a53";
 			reg = <0x3>;
 			enable-method = "psci";
+			cpu-idle-states = <&cpu_sleep_0>;
 			next-level-cache = <&l2_0>;
 			#cooling-cells = <2>;
 			clocks = <&apcs_glb APCS_ALIAS0_CORE_CLK>;
@@ -80,6 +84,20 @@ l2_0: l2-cache {
 			cache-level = <2>;
 			cache-unified;
 		};
+
+		idle-states {
+			entry-method = "psci";
+
+			cpu_sleep_0: cpu-sleep-c3 { /* C3 */
+				compatible = "arm,idle-state";
+				idle-state-name = "power-down";
+				arm,psci-suspend-param = <0x40000003>;
+				entry-latency-us = <181>;
+				exit-latency-us = <149>;
+				min-residency-us = <703>;
+				local-timer-stop;
+			};
+		};
 	};
 
 	firmware {

-- 
2.34.1