linux-kernel - RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: add one more thermal zone support

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Message-ID: <DBBPR04MB60908EAB2DB840CF87C79B84F3B00@DBBPR04MB6090.eurprd04.prod.outlook.com>
Date:   Tue, 26 May 2020 02:45:05 +0000
From:   Andy Tang <andy.tang@....com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: add one more thermal zone
 support



-----Original Message-----
From: Daniel Lezcano <daniel.lezcano@...aro.org> 
Sent: 2020年5月25日 19:08
To: Andy Tang <andy.tang@....com>; shawnguo@...nel.org; robh+dt@...nel.org; mark.rutland@....com; catalin.marinas@....com; will.deacon@....com
Cc: devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
Subject: [EXT] Re: [PATCH] arm64: dts: ls1028a: add one more thermal zone support

Caution: EXT Email

On 25/05/2020 09:38, Yuantian Tang wrote:
> There are 2 thermal zones in ls1028a soc. Current dts only includes 
> one. This patch adds the other thermal zone node in dts to enable it.

For my personal information, is there a cooling device for the DDR?

A: There is only one cooling device which is used by core-cluster sensor zone.
So there is no cooling device for DDR.

BR,
Andy 

> Signed-off-by: Yuantian Tang <andy.tang@....com>
> ---
>  .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 22 
> ++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi 
> b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 055f114cf848..bc6f0c0f85da 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -129,11 +129,31 @@
>       };
>
>       thermal-zones {
> -             core-cluster {
> +             ddr-controller {
>                       polling-delay-passive = <1000>;
>                       polling-delay = <5000>;
>                       thermal-sensors = <&tmu 0>;
>
> +                     trips {
> +                             ddr-ctrler-alert {
> +                                     temperature = <85000>;
> +                                     hysteresis = <2000>;
> +                                     type = "passive";
> +                             };
> +
> +                             ddr-ctrler-crit {
> +                                     temperature = <95000>;
> +                                     hysteresis = <2000>;
> +                                     type = "critical";
> +                             };
> +                     };
> +             };
> +
> +             core-cluster {
> +                     polling-delay-passive = <1000>;
> +                     polling-delay = <5000>;
> +                     thermal-sensors = <&tmu 1>;
> +
>                       trips {
>                               core_cluster_alert: core-cluster-alert {
>                                       temperature = <85000>;
>


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