Define power domain and the power states for the domain as defined by
the PSCI firmware.
Signed-off-by: Lina Iyer <lina.iyer@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/msm8916.dtsi | 48 ++++++++++++++++++++++++++++++++++-
1 file changed, 47 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 5806438..3ea8126 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -47,12 +47,32 @@
#address-cells = <1>;
#size-cells = <0>;
+ cpu-map {
+ cluster0 {
+ cluster = <&CLUSTER0>;
+
+ core0 {
+ cpu = <&CPU0>;
+ };
+ core1 {
+ cpu = <&CPU1>;
+ };
+ core2 {
+ cpu = <&CPU2>;
+ };
+ core3 {
+ cpu = <&CPU3>;
+ };
+ };
+ };
+
CPU0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CLUSTER0>;
};
CPU1: cpu@1 {
@@ -61,6 +81,7 @@
reg = <0x1>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CLUSTER0>;
};
CPU2: cpu@2 {
@@ -69,6 +90,7 @@
reg = <0x2>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CLUSTER0>;
};
CPU3: cpu@3 {
@@ -77,6 +99,7 @@
reg = <0x3>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CLUSTER0>;
};
idle-states {
@@ -89,8 +112,31 @@
min-residency-us = <2000>;
};
};
+
+ CLUSTER0: cluster@0 {
+ #power-domain-cells = <0>;
+ power-states = <&CLUSTER_RET>, <&CLUSTER_PWR_DWN>;
+ };
+
+ cluster-power-states {
+ CLUSTER_RET: power-state@1 {
+ compatible = "linux,domain-state";
+ state-param = <0x1000010>;
+ entry-latency-us = <500>;
+ exit-latency-us = <500>;
+ residency-us = <2000>;
+ };
+
+ CLUSTER_PWR_DWN: power-state@2 {
+ compatible = "linux,domain-state";
+ state-param = <0x1000030>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ residency-us = <6000>;
+ };
+ };
};
-
+
psci {
compatible = "arm,psci-1.0";
method = "smc";
--
2.1.4
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