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

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Message-Id: <20250815-imx9-dts-v1-11-e609eb4e3105@nxp.com>
Date: Fri, 15 Aug 2025 17:03:57 +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 11/13] 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.

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 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