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SubjectRe: [PATCH 04/10] arm64: dts: qcom: sm8450: Update cpuidle states parameters
On Sun, 9 Jan 2022 at 18:25, Maulik Shah <quic_mkshah@quicinc.com> wrote:
>
> This change updates/corrects below cpuidle parameters
>
> 1. entry-latency, exit-latency and residency for various idle states.
> 2. arm,psci-suspend-param which is same for CLUSTER_SLEEP_0/1 states.
> 3. Add CLUSTER_SLEEP_1 in CLUSTER_PD.
>
> Cc: devicetree@vger.kernel.org
> Fixes: 5188049c9b36 ("arm64: dts: qcom: Add base SM8450 DTSI")
> Signed-off-by: Maulik Shah <quic_mkshah@quicinc.com>
> ---
> arch/arm64/boot/dts/qcom/sm8450.dtsi | 28 ++++++++++++++--------------
> 1 file changed, 14 insertions(+), 14 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 10c25ad..5e329f8 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -203,9 +203,9 @@
> compatible = "arm,idle-state";
> idle-state-name = "silver-rail-power-collapse";
> arm,psci-suspend-param = <0x40000004>;
> - entry-latency-us = <274>;
> - exit-latency-us = <480>;
> - min-residency-us = <3934>;
> + entry-latency-us = <800>;
> + exit-latency-us = <750>;
> + min-residency-us = <4090>;
> local-timer-stop;
> };
>
> @@ -213,9 +213,9 @@
> compatible = "arm,idle-state";
> idle-state-name = "gold-rail-power-collapse";
> arm,psci-suspend-param = <0x40000004>;
> - entry-latency-us = <327>;
> - exit-latency-us = <1502>;
> - min-residency-us = <4488>;
> + entry-latency-us = <600>;
> + exit-latency-us = <1550>;
> + min-residency-us = <4791>;
> local-timer-stop;
> };
> };
> @@ -224,10 +224,10 @@
> CLUSTER_SLEEP_0: cluster-sleep-0 {
> compatible = "domain-idle-state";
> idle-state-name = "cluster-l3-off";
> - arm,psci-suspend-param = <0x4100c344>;
> - entry-latency-us = <584>;
> - exit-latency-us = <2332>;
> - min-residency-us = <6118>;
> + arm,psci-suspend-param = <0x41000044>;
> + entry-latency-us = <1050>;
> + exit-latency-us = <2500>;
> + min-residency-us = <5309>;
> local-timer-stop;
> };
>
> @@ -235,9 +235,9 @@
> compatible = "domain-idle-state";
> idle-state-name = "cluster-power-collapse";
> arm,psci-suspend-param = <0x4100c344>;
> - entry-latency-us = <2893>;
> - exit-latency-us = <4023>;
> - min-residency-us = <9987>;
> + entry-latency-us = <2700>;
> + exit-latency-us = <3500>;
> + min-residency-us = <13959>;
> local-timer-stop;
> };
> };
> @@ -315,7 +315,7 @@
>
> CLUSTER_PD: cpu-cluster0 {
> #power-domain-cells = <0>;
> - domain-idle-states = <&CLUSTER_SLEEP_0>;
> + domain-idle-states = <&CLUSTER_SLEEP_0 &CLUSTER_SLEEP_1>;

Should this be like the below instead?

<&CLUSTER_SLEEP_0>, <&CLUSTER_SLEEP_1>;

> };
> };
>
> --
> 2.7.4
>

Other than the above, feel free to add:

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

Kind regards
Uffe

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