Re: [PATCH] arm64: dts: qcom: sc7180: Add cpuidle low power states

[Maulik Shah]

Hi Matthias,

Yes, i will post new version very soon.

Thanks,

Maulik


On 1/22/2020 5:14 AM, Matthias Kaehlcke wrote:
> Hi Maulik,
>
> what is the state of this patch? Sudeep and Stephen had comments requesting
> minor changes, do you plan to send a v2 soon?
>
> Thanks
>
> Matthias
>
> On Wed, Oct 30, 2019 at 09:35:18AM +0530, Maulik Shah wrote:
> > 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 | 78 ++++++++++++++++++++++++++++++++++++
> >   1 file changed, 78 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> > index fceac50..69d5e2c 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> > @@ -70,6 +70,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x0>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_0>;
> >   			L2_0: l2-cache {
> >   				compatible = "cache";
> > @@ -85,6 +88,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x100>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_100>;
> >   			L2_100: l2-cache {
> >   				compatible = "cache";
> > @@ -97,6 +103,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x200>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_200>;
> >   			L2_200: l2-cache {
> >   				compatible = "cache";
> > @@ -109,6 +118,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x300>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_300>;
> >   			L2_300: l2-cache {
> >   				compatible = "cache";
> > @@ -121,6 +133,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x400>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_400>;
> >   			L2_400: l2-cache {
> >   				compatible = "cache";
> > @@ -133,6 +148,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x500>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> > +					   &LITTLE_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_500>;
> >   			L2_500: l2-cache {
> >   				compatible = "cache";
> > @@ -145,6 +163,9 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x600>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&BIG_CPU_SLEEP_0
> > +					   &BIG_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_600>;
> >   			L2_600: l2-cache {
> >   				compatible = "cache";
> > @@ -157,12 +178,69 @@
> >   			compatible = "arm,armv8";
> >   			reg = <0x0 0x700>;
> >   			enable-method = "psci";
> > +			cpu-idle-states = <&BIG_CPU_SLEEP_0
> > +					   &BIG_CPU_SLEEP_1
> > +					   &CLUSTER_SLEEP_0>;
> >   			next-level-cache = <&L2_700>;
> >   			L2_700: l2-cache {
> >   				compatible = "cache";
> >   				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;
> > +			};
> > +		};
> >   	};
> >   
> >   	memory@80000000 {
> > --
> > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> > of Code Aurora Forum, hosted by The Linux Foundation
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation