From: Niklas Cassel <niklas.cassel@xxxxxxxxxx>
Add device bindings for cpuidle states for cpu devices.
[amit: rename the idle-states to more generic names and fixups]
Signed-off-by: Niklas Cassel <niklas.cassel@xxxxxxxxxx>
Reviewed-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qcs404.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index e8fd26633d57..369c59c35bc7 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
@@ -30,6 +30,7 @@
compatible = "arm,cortex-a53";
reg = <0x100>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
};
@@ -38,6 +39,7 @@
compatible = "arm,cortex-a53";
reg = <0x101>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
};
@@ -46,6 +48,7 @@
compatible = "arm,cortex-a53";
reg = <0x102>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
};
@@ -54,6 +57,7 @@
compatible = "arm,cortex-a53";
reg = <0x103>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
};
@@ -61,6 +65,20 @@
compatible = "cache";
cache-level = <2>;
};
+
+ idle-states {
+ entry-method="psci";
+
+ CPU_SLEEP_0: cpu-sleep-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "standalone-power-collapse";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <125>;
+ exit-latency-us = <180>;
+ min-residency-us = <595>;
+ local-timer-stop;
+ };
+ };
};
firmware {
--
2.17.1
