linux-kernel - [PATCH 5/8] arm64: dts: imx8qm-mek: add pmic thermal-zones

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Message-Id: <20251028-b4_qm_dts-v1-5-51ba94389c1f@nxp.com>
Date: Tue, 28 Oct 2025 16:30:46 -0400
From: Frank Li <Frank.Li@....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>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH 5/8] arm64: dts: imx8qm-mek: add pmic thermal-zones

Add pmic thermal-zones.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 32 ++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
index a88e8600999adf53e66785e608c6231bee53b162..90daa3de24c6697554a75ab5176682ba8fbf5ada 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
@@ -912,6 +912,38 @@ &vpu_dsp {
 	status = "okay";
 };
 
+&thermal_zones {
+	pmic-thermal {
+		polling-delay-passive = <250>;
+		polling-delay = <2000>;
+		thermal-sensors = <&tsens IMX_SC_R_PMIC_0>;
+
+		trips {
+			pmic_alert0: trip0 {
+				temperature = <110000>;
+				hysteresis = <2000>;
+				type = "passive";
+			};
+
+			pmic_crit0: trip1 {
+				temperature = <125000>;
+				hysteresis = <2000>;
+				type = "critical";
+			};
+		};
+
+		cooling-maps {
+			map0 {
+				trip = <&pmic_alert0>;
+				cooling-device = <&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						 <&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						 <&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						 <&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+			};
+		};
+	};
+};
+
 &iomuxc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_hog>;

-- 
2.34.1