Re: [PATCH v2 8/9] arm64: dts: qcom: sdm845: Add PSCI cpuidle low power states

[Bjorn Andersson]

On Tue 21 May 02:35 PDT 2019, Amit Kucheria wrote:

> From: "Raju P.L.S.S.S.N" <rplsssn@xxxxxxxxxxxxxx>
> 
> Add device bindings for cpuidle states for cpu devices.
> 
> Cc: <mkshah@xxxxxxxxxxxxxx>
> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@xxxxxxxxxxxxxx>
> Reviewed-by: Evan Green <evgreen@xxxxxxxxxxxx>
> [amit: rename the idle-states to more generic names and fixups]
> Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
> Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> ---

Applied

Thanks,
Bjorn

>  arch/arm64/boot/dts/qcom/sdm845.dtsi | 69 ++++++++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 5308f1671824..a0ae6bf033ee 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -119,6 +119,7 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x0>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 0>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_0>;
> @@ -136,6 +137,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x100>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 0>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_100>;
> @@ -150,6 +153,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x200>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 0>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_200>;
> @@ -164,6 +169,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x300>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 0>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_300>;
> @@ -178,6 +185,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x400>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 1>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_400>;
> @@ -192,6 +201,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x500>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 1>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_500>;
> @@ -206,6 +217,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x600>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 1>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_600>;
> @@ -220,6 +233,8 @@
>  			compatible = "qcom,kryo385";
>  			reg = <0x0 0x700>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1
> +					   &CLUSTER_SLEEP_0>;
>  			qcom,freq-domain = <&cpufreq_hw 1>;
>  			#cooling-cells = <2>;
>  			next-level-cache = <&L2_700>;
> @@ -228,6 +243,60 @@
>  				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 = <350>;
> +				exit-latency-us = <461>;
> +				min-residency-us = <1890>;
> +				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 = <360>;
> +				exit-latency-us = <531>;
> +				min-residency-us = <3934>;
> +				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 = <264>;
> +				exit-latency-us = <621>;
> +				min-residency-us = <952>;
> +				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 = <702>;
> +				exit-latency-us = <1061>;
> +				min-residency-us = <4488>;
> +				local-timer-stop;
> +			};
> +
> +			CLUSTER_SLEEP_0: cluster-sleep-0 {
> +				compatible = "arm,idle-state";
> +				idle-state-name = "cluster-power-down";
> +				arm,psci-suspend-param = <0x400000F4>;
> +				entry-latency-us = <3263>;
> +				exit-latency-us = <6562>;
> +				min-residency-us = <9987>;
> +				local-timer-stop;
> +			};
> +		};
>  	};
>  
>  	pmu {
> -- 
> 2.17.1
>