linux-kernel - Re: [PATCH 11/13] arm64: dts: imx95-19x19-evk: Add pf09 and pf53 thermal zones

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Message-ID: <aJ9j4WxfYIbkcX14@lizhi-Precision-Tower-5810>
Date: Fri, 15 Aug 2025 12:44:17 -0400
From: Frank Li <Frank.li@....com>
To: Peng Fan <peng.fan@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/13] arm64: dts: imx95-19x19-evk: Add pf09 and pf53
 thermal zones

On Fri, Aug 15, 2025 at 05:03:57PM +0800, Peng Fan wrote:
> System Manager supports reading out pf09 and pf53 temperature and
> SCMI Agent could get the values through SCMI sensor protocol. So add
> the nodes to allow Linux to get the temperature.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---

Reviewed-by: Frank Li <Frank.Li@....com>

>  arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 73 +++++++++++++++++++++++
>  1 file changed, 73 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> index c35a5083c837379804e07f98163c0a5d4301abd7..0ad5707314fb225b74d8940908b53dc2a444ed5d 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> @@ -1078,6 +1078,79 @@ map3 {
>  			};
>  		};
>  	};
> +
> +	pf09-thermal {
> +		polling-delay = <2000>;
> +		polling-delay-passive = <250>;
> +		thermal-sensors = <&scmi_sensor 2>;
> +
> +		trips {
> +			pf09_alert: trip0 {
> +				hysteresis = <2000>;
> +				temperature = <140000>;
> +				type = "passive";
> +			};
> +
> +			pf09_crit: trip1 {
> +				hysteresis = <2000>;
> +				temperature = <155000>;
> +				type = "critical";
> +			};
> +		};
> +	};
> +
> +	pf53arm-thermal {
> +		polling-delay = <2000>;
> +		polling-delay-passive = <250>;
> +		thermal-sensors = <&scmi_sensor 4>;
> +
> +		cooling-maps {
> +			map0 {
> +				trip = <&pf5301_alert>;
> +				cooling-device =
> +					<&A55_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> +					<&A55_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> +					<&A55_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> +					<&A55_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> +					<&A55_4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> +					<&A55_5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> +			};
> +		};
> +
> +		trips {
> +			pf5301_alert: trip0 {
> +				hysteresis = <2000>;
> +				temperature = <140000>;
> +				type = "passive";
> +			};
> +
> +			pf5301_crit: trip1 {
> +				hysteresis = <2000>;
> +				temperature = <155000>;
> +				type = "critical";
> +			};
> +		};
> +	};
> +
> +	pf53soc-thermal {
> +		polling-delay = <2000>;
> +		polling-delay-passive = <250>;
> +		thermal-sensors = <&scmi_sensor 3>;
> +
> +		trips {
> +			pf5302_alert: trip0 {
> +				hysteresis = <2000>;
> +				temperature = <140000>;
> +				type = "passive";
> +			};
> +
> +			pf5302_crit: trip1 {
> +				hysteresis = <2000>;
> +				temperature = <155000>;
> +				type = "critical";
> +			};
> +		};
> +	};
>  };
>
>  &tpm6 {
>
> --
> 2.37.1
>