diff mbox

[v2,14/14] ARM64: dts: Define CPU power domain for MSM8916

Message ID 1469829385-11511-15-git-send-email-lina.iyer@linaro.org
State New
Headers show

Commit Message

Lina Iyer July 29, 2016, 9:56 p.m. UTC
Define power domain and the power states for the domain as defined by
the PSCI firmware. The 8916 firmware supports OS initiated method of
powering off the CPU clusters.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>

---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

-- 
2.7.4

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diff mbox

Patch

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 3029773..d122fa1 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -64,6 +64,7 @@ 
 			next-level-cache = <&L2_0>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SPC>;
+			power-domains = <&CPU_PD>;
 		};
 
 		CPU1: cpu@1 {
@@ -73,6 +74,7 @@ 
 			next-level-cache = <&L2_0>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SPC>;
+			power-domains = <&CPU_PD>;
 		};
 
 		CPU2: cpu@2 {
@@ -82,6 +84,7 @@ 
 			next-level-cache = <&L2_0>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SPC>;
+			power-domains = <&CPU_PD>;
 		};
 
 		CPU3: cpu@3 {
@@ -91,6 +94,7 @@ 
 			next-level-cache = <&L2_0>;
 			enable-method = "psci";
 			cpu-idle-states = <&CPU_SPC>;
+			power-domains = <&CPU_PD>;
 		};
 
 		L2_0: l2-cache {
@@ -110,6 +114,29 @@ 
 		};
 	};
 
+	CPU_PD: cpu-pd@0 {
+		#power-domain-cells = <0>;
+		domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWR_DWN>;
+	};
+
+	cpu-domain-states {
+		CLUSTER_RET: domain_ret {
+			compatible = "arm,idle-state";
+			arm,psci-suspend-param = <0x1000010>;
+			entry-latency-us = <500>;
+			exit-latency-us = <500>;
+			residency-us = <2000>;
+		 };
+
+		CLUSTER_PWR_DWN: domain_gdhs {
+			compatible = "arm,idle-state";
+			arm,psci-suspend-param = <0x1000030>;
+			entry-latency-us = <2000>;
+			exit-latency-us = <2000>;
+			residency-us = <6000>;
+		};
+	};
+
 	psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";