lkml.org 
[lkml]   [2019]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 8/9] arm64: dts: qcom: sdm845: Add PSCI cpuidle low power states
    Date
    From: "Raju P.L.S.S.S.N" <rplsssn@codeaurora.org>

    Add device bindings for cpuidle states for cpu devices.

    Cc: <mkshah@codeaurora.org>
    Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
    Reviewed-by: Evan Green <evgreen@chromium.org>
    [amit: rename the idle-states to more generic names and fixups]
    Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
    Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
    ---
    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
    \
     
     \ /
      Last update: 2019-05-21 11:36    [W:4.238 / U:0.160 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site