[RFC,6/7] arm64: dts: Add cpu idle states for 8916

Message ID 1429314549-6730-7-git-send-email-lina.iyer@linaro.org
State New
Headers show

Commit Message

Lina Iyer April 17, 2015, 11:49 p.m.
Add ARM common idle states device bindings for cpuidle support for 8916
SOC.

Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index a3232be..3c46898 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -52,6 +52,7 @@ 
 			qcom,acc = <&acc0>;
 			next-level-cache = <&L2_0>;
 			qcom,saw = <&saw0>;
+			cpu-idle-states = <&CPU_SPC>;
 			L2_0: l2-cache {
 			      compatible = "arm,arch-cache";
 			      cache-level = <2>;
@@ -67,6 +68,7 @@ 
 			qcom,acc = <&acc1>;
 			next-level-cache = <&L2_0>;
 			qcom,saw = <&saw1>;
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU2: cpu@2 {
@@ -77,6 +79,7 @@ 
 			qcom,acc = <&acc2>;
 			next-level-cache = <&L2_0>;
 			qcom,saw = <&saw2>;
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU3: cpu@3 {
@@ -87,6 +90,17 @@ 
 			qcom,acc = <&acc3>;
 			next-level-cache = <&L2_0>;
 			qcom,saw = <&saw3>;
+			cpu-idle-states = <&CPU_SPC>;
+		};
+
+		idle-states {
+			CPU_SPC: spc {
+				compatible = "qcom,idle-state-spc",
+						"arm,idle-state";
+				entry-latency-us = <130>;
+				exit-latency-us = <150>;
+				min-residency-us = <2000>;
+			};
 		};
 	};