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Date: Tue, 21 May 2019 20:59:46 -0700 From: Bjorn Andersson <bjorn.andersson@...aro.org> To: Amit Kucheria <amit.kucheria@...aro.org> Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, agross@...nel.org, niklas.cassel@...aro.org, marc.w.gonzalez@...e.fr, sibis@...eaurora.org, daniel.lezcano@...aro.org, Andy Gross <andy.gross@...aro.org>, David Brown <david.brown@...aro.org>, Li Yang <leoyang.li@....com>, Shawn Guo <shawnguo@...nel.org>, "Raju P.L.S.S.S.N" <rplsssn@...eaurora.org>, mkshah@...eaurora.org, devicetree@...r.kernel.org Subject: Re: [PATCH v2 8/9] arm64: dts: qcom: sdm845: Add PSCI cpuidle low power states On Tue 21 May 02:35 PDT 2019, Amit Kucheria wrote: > From: "Raju P.L.S.S.S.N" <rplsssn@...eaurora.org> > > Add device bindings for cpuidle states for cpu devices. > > Cc: <mkshah@...eaurora.org> > Signed-off-by: Raju P.L.S.S.S.N <rplsssn@...eaurora.org> > Reviewed-by: Evan Green <evgreen@...omium.org> > [amit: rename the idle-states to more generic names and fixups] > Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org> > Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org> > --- 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 >
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