linux-kernel - Re: [PATCH RESEND V11 4/4] arm64: dts: imx: add i.MX8QXP thermal support

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Message-ID: <13bc5836-cc0e-82f7-60ef-3ef544aa8ec2@linaro.org>
Date:   Mon, 15 Apr 2019 22:14:20 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Anson Huang <anson.huang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "edubezval@...il.com" <edubezval@...il.com>,
        Aisheng Dong <aisheng.dong@....com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        Peng Fan <peng.fan@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "horms+renesas@...ge.net.au" <horms+renesas@...ge.net.au>,
        "heiko@...ech.de" <heiko@...ech.de>,
        Andy Gross <andy.gross@...aro.org>,
        "maxime.ripard@...tlin.com" <maxime.ripard@...tlin.com>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
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        "marc.w.gonzalez@...e.fr" <marc.w.gonzalez@...e.fr>,
        "olof@...om.net" <olof@...om.net>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Cc:     dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH RESEND V11 4/4] arm64: dts: imx: add i.MX8QXP thermal
 support

On 10/04/2019 09:43, Anson Huang wrote:
> Add i.MX8QXP CPU thermal zone support.
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> Changes since V10:
> 	- remove property "imx,sensor-resource-id" and put HW resource ID inside each
> 	  thermal-sensors' phandle argument.
> ---
>  arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 33 ++++++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> index 70ef3db..cc1d877 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> @@ -10,6 +10,7 @@
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/pinctrl/pads-imx8qxp.h>
> +#include <dt-bindings/thermal/thermal.h>
>  
>  / {
>  	interrupt-parent = <&gic>;
> @@ -149,6 +150,11 @@
>  		rtc: rtc {
>  			compatible = "fsl,imx8qxp-sc-rtc";
>  		};
> +
> +		tsens: thermal-sensor {
> +			compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
> +			#thermal-sensor-cells = <1>;
> +		};
>  	};
>  
>  	timer {
> @@ -484,4 +490,31 @@
>  			power-domains = <&pd IMX_SC_R_GPIO_7>;
>  		};
>  	};
> +
> +	thermal_zones: thermal-zones {
> +		cpu-thermal0 {
> +			polling-delay-passive = <250>;
> +			polling-delay = <2000>;
> +			thermal-sensors = <&tsens IMX_SC_R_SYSTEM>;
> +			trips {
> +				cpu_alert0: trip0 {
> +					temperature = <107000>;
> +					hysteresis = <2000>;
> +					type = "passive";
> +				};
> +				cpu_crit0: trip1 {
> +					temperature = <127000>;
> +					hysteresis = <2000>;
> +					type = "critical";
> +				};
> +			};
> +			cooling-maps {
> +				map0 {
> +					trip = <&cpu_alert0>;
> +					cooling-device =
> +						<&A35_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;

	<&A35_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
	<&A35_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
	<&A35_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
	<&A35_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;


> +				};
> +			};
> +		};
> +	};
>  };
> 


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