linux-kernel - [PATCH v2 05/10] arm64: dts: colibri-imx8x: Add PMIC thermal zone

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Message-Id: <20240901155721.7912-6-francesco@dolcini.it>
Date: Sun,  1 Sep 2024 17:57:16 +0200
From: Francesco Dolcini <francesco@...cini.it>
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: Francesco Dolcini <francesco.dolcini@...adex.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 05/10] arm64: dts: colibri-imx8x: Add PMIC thermal zone

From: Francesco Dolcini <francesco.dolcini@...adex.com>

Add PMIC thermal zones.

Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
v2: no changes
---
 .../boot/dts/freescale/imx8dx-colibri.dtsi    | 11 ++++++
 .../boot/dts/freescale/imx8x-colibri.dtsi     | 34 +++++++++++++++++--
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8dx-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8dx-colibri.dtsi
index 66b0fcc6687d..4d1ad052c5b6 100644
--- a/arch/arm64/boot/dts/freescale/imx8dx-colibri.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8dx-colibri.dtsi
@@ -9,3 +9,14 @@
 / {
 	model = "Toradex Colibri iMX8DX Module";
 };
+
+&thermal_zones {
+	pmic-thermal {
+		cooling-maps {
+			map0 {
+				cooling-device = <&A35_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						 <&A35_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
index 60cf4e400052..bc1577b5f1ea 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
@@ -88,8 +88,6 @@ &adc0 {
 	vref-supply = <&reg_module_vref_1v8>;
 };
 
-/* TODO Cooling maps for DX */
-
 &cpu_alert0 {
 	hysteresis = <2000>;
 	temperature = <90000>;
@@ -420,6 +418,38 @@ &sai0 {
 	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 {
+			pmic_cooling_map0: map0 {
+				trip = <&pmic_alert0>;
+				cooling-device = <&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>;
+			};
+		};
+	};
+};
+
 &usbotg1 {
 	adp-disable;
 	disable-over-current;
-- 
2.39.2