linux-kernel - [PATCH v2 10/11] arm64: dts: imx95-19x19-evk: Add pf09 and pf53 thermal zones

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Message-Id: <20250818-imx9-dts-v2-10-8ba787fb5280@nxp.com>
Date: Mon, 18 Aug 2025 09:25:40 +0800
From: Peng Fan <peng.fan@....com>
To: 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>, Frank Li <Frank.Li@....com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Peng Fan <peng.fan@....com>
Subject: [PATCH v2 10/11] arm64: dts: imx95-19x19-evk: Add pf09 and pf53
 thermal zones

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.

Reviewed-by: Frank Li <Frank.Li@....com>
Signed-off-by: Peng Fan <peng.fan@....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 11393bd57582dd9097732c84e6281be2662145f7..d0c7c9fa43beda4aed83c4b4ecfc4e7f65ae0386 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -1058,6 +1058,79 @@ 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