Introduce the C3 power state, which - to the best of my understanding -
gates the CPU clock, but does not shut off the power rail.
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm6375.dtsi | 36 ++++++++++++++++++++++++++++--------
1 file changed, 28 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm6375.dtsi b/arch/arm64/boot/dts/qcom/sm6375.dtsi
index 05d8d6a012b6..5a6661dbde08 100644
--- a/arch/arm64/boot/dts/qcom/sm6375.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6375.dtsi
@@ -207,6 +207,16 @@ core7 {
idle-states {
entry-method = "psci";
+ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "silver-power-collapse";
+ 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 = "silver-rail-power-collapse";
@@ -217,6 +227,16 @@ LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
local-timer-stop;
};
+ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "gold-power-collapse";
+ 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 = "gold-rail-power-collapse";
@@ -268,49 +288,49 @@ psci {
CPU_PD0: power-domain-cpu0 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD1: power-domain-cpu1 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD2: power-domain-cpu2 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD3: power-domain-cpu3 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD4: power-domain-cpu4 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD5: power-domain-cpu5 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&LITTLE_CPU_SLEEP_1>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
};
CPU_PD6: power-domain-cpu6 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&BIG_CPU_SLEEP_1>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
};
CPU_PD7: power-domain-cpu7 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&BIG_CPU_SLEEP_1>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
};
CLUSTER_PD: power-domain-cpu-cluster0 {
--
2.39.2
