linux-kernel - Re: [Patch v4 7/7] arm64: dts: qcom: Indicate rpmhpd hosts a power domain that can be used as a warming device.

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Date:   Tue, 4 Feb 2020 18:40:37 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Thara Gopinath <thara.gopinath@...aro.org>
Cc:     Eduardo Valentin <edubezval@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Mark Rutland <mark.rutland@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Patch v4 7/7] arm64: dts: qcom: Indicate rpmhpd hosts a power
 domain that can be used as a warming device.

On Wed, 20 Nov 2019 at 13:57, Thara Gopinath <thara.gopinath@...aro.org> wrote:
>
> RPMh hosts mx power domain that can be used to warm up the SoC.  Indicate
> this by using #cooling-cells property.
>
> Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>

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

Kind regards
Uffe


> ---
> v3->v4:
>         - Removed subnode to indicate that mx power domain is a warming
>           device. Instead #cooling-cells is used as a power domain
>           provider property to indicate if the provider hosts a power
>           domain that can be used as a warming device.
>
>  arch/arm64/boot/dts/qcom/sdm845.dtsi | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 23260a0..71d6f91 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -3118,6 +3118,7 @@
>                         rpmhpd: power-controller {
>                                 compatible = "qcom,sdm845-rpmhpd";
>                                 #power-domain-cells = <1>;
> +                               #cooling-cells = <2>;
>                                 operating-points-v2 = <&rpmhpd_opp_table>;
>
>                                 rpmhpd_opp_table: opp-table {
> --
> 2.1.4
>