[PATCH v4 6/6] arm64: dts: qcom: sc7180: Add cpuidle low power states
From: Maulik Shah
Date: Wed Feb 05 2020 - 07:27:16 EST
Add device bindings for cpuidle states for cpu devices.
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 135 +++++++++++++++++++++++++++++++++++
1 file changed, 135 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 8011c5f..844a25a 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -86,6 +86,8 @@
compatible = "arm,armv8";
reg = <0x0 0x0>;
enable-method = "psci";
+ power-domains = <&CPU_PD0>;
+ power-domain-names = "psci";
next-level-cache = <&L2_0>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -103,6 +105,8 @@
compatible = "arm,armv8";
reg = <0x0 0x100>;
enable-method = "psci";
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
next-level-cache = <&L2_100>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -117,6 +121,8 @@
compatible = "arm,armv8";
reg = <0x0 0x200>;
enable-method = "psci";
+ power-domains = <&CPU_PD2>;
+ power-domain-names = "psci";
next-level-cache = <&L2_200>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -131,6 +137,8 @@
compatible = "arm,armv8";
reg = <0x0 0x300>;
enable-method = "psci";
+ power-domains = <&CPU_PD3>;
+ power-domain-names = "psci";
next-level-cache = <&L2_300>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -145,6 +153,8 @@
compatible = "arm,armv8";
reg = <0x0 0x400>;
enable-method = "psci";
+ power-domains = <&CPU_PD4>;
+ power-domain-names = "psci";
next-level-cache = <&L2_400>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -159,6 +169,8 @@
compatible = "arm,armv8";
reg = <0x0 0x500>;
enable-method = "psci";
+ power-domains = <&CPU_PD5>;
+ power-domain-names = "psci";
next-level-cache = <&L2_500>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 0>;
@@ -173,6 +185,8 @@
compatible = "arm,armv8";
reg = <0x0 0x600>;
enable-method = "psci";
+ power-domains = <&CPU_PD6>;
+ power-domain-names = "psci";
next-level-cache = <&L2_600>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 1>;
@@ -187,6 +201,8 @@
compatible = "arm,armv8";
reg = <0x0 0x700>;
enable-method = "psci";
+ power-domains = <&CPU_PD7>;
+ power-domain-names = "psci";
next-level-cache = <&L2_700>;
#cooling-cells = <2>;
qcom,freq-domain = <&cpufreq_hw 1>;
@@ -195,6 +211,60 @@
next-level-cache = <&L3_0>;
};
};
+
+ idle-states {
+ entry-method = "psci";
+
+ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <549>;
+ exit-latency-us = <901>;
+ min-residency-us = <1774>;
+ local-timer-stop;
+ };
+
+ LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "little-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <702>;
+ exit-latency-us = <915>;
+ min-residency-us = <4001>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-power-down";
+ arm,psci-suspend-param = <0x40000003>;
+ entry-latency-us = <523>;
+ exit-latency-us = <1244>;
+ min-residency-us = <2207>;
+ local-timer-stop;
+ };
+
+ BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
+ compatible = "arm,idle-state";
+ idle-state-name = "big-rail-power-down";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <526>;
+ exit-latency-us = <1854>;
+ min-residency-us = <5555>;
+ local-timer-stop;
+ };
+
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "cluster-power-down";
+ arm,psci-suspend-param = <0x40003444>;
+ entry-latency-us = <3263>;
+ exit-latency-us = <6562>;
+ min-residency-us = <9926>;
+ local-timer-stop;
+ };
+ };
};
memory@80000000 {
@@ -297,6 +367,70 @@
psci {
compatible = "arm,psci-1.0";
method = "smc";
+
+ CPU_PD0: cpu-pd0 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD1: cpu-pd1 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD2: cpu-pd2 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD3: cpu-pd3 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD4: cpu-pd4 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD5: cpu-pd5 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>,
+ <&LITTLE_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD6: cpu-pd6 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>,
+ <&BIG_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
+
+ CPU_PD7: cpu-pd7 {
+ #power-domain-cells = <0>;
+ power-domains = <&apps_rsc>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>,
+ <&BIG_CPU_SLEEP_1>,
+ <&CLUSTER_SLEEP_0>;
+ };
};
soc: soc {
@@ -1417,6 +1551,7 @@
<SLEEP_TCS 3>,
<WAKE_TCS 3>,
<CONTROL_TCS 1>;
+ #power-domain-cells = <0>;
rpmhcc: clock-controller {
compatible = "qcom,sc7180-rpmh-clk";
--
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