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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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