Add device bindings for CPUs to suspend using PSCI as the enable-method.
Signed-off-by: Lina Iyer <[email protected]>
---
arch/arm64/boot/dts/qcom/msm8916.dtsi | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi
b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 7be7c23..5806438 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -51,25 +51,49 @@
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SPC>;
};
CPU1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x1>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SPC>;
};
CPU2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x2>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SPC>;
};
CPU3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x3>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SPC>;
};
+
+ idle-states {
+ CPU_SPC: spc {
+ compatible = "qcom,idle-state-spc",
+ "arm,idle-state";
+ arm,psci-suspend-param = <0x40000002>;
+ entry-latency-us = <130>;
+ exit-latency-us = <150>;
+ min-residency-us = <2000>;
+ };
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
};
timer {
--
2.1.4
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