From: Frank Li <Frank.Li@nxp.com>
Date: Mon, 1 Jul 2024 20:07:28 +0000 (-0400)
Subject: arm64: dts: imx95-19x19-evk: add pwm fan control
X-Git-Tag: v6.12-rc1~188^2~21^2~111
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7500e5b3706e4f9a35aba017a0fd705d999e4285;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: imx95-19x19-evk: add pwm fan control

Add pwm fan and overwrite default thermal nodes.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index 2b820a961c173..37a1d4ca1b207 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/pwm/pwm.h>
 #include "imx95.dtsi"
 
 / {
@@ -31,6 +32,13 @@
 		reg = <0x0 0x80000000 0 0x80000000>;
 	};
 
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		#cooling-cells = <2>;
+		pwms = <&tpm6 2 4000000 PWM_POLARITY_INVERTED>;
+		cooling-levels = <64 128 192 255>;
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -463,6 +471,12 @@
 		>;
 	};
 
+	pinctrl_tpm6: tpm6grp {
+		fsl,pins = <
+			IMX95_PAD_GPIO_IO19__TPM6_CH2			0x51e
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			IMX95_PAD_UART1_RXD__AONMIX_TOP_LPUART1_RX      0x31e
@@ -566,3 +580,50 @@
 		>;
 	};
 };
+
+&thermal_zones {
+	a55-thermal {
+		trips {
+			atrip2: trip2 {
+				temperature = <55000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+
+			atrip3: trip3 {
+				temperature = <65000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+
+			atrip4: trip4 {
+				temperature = <75000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+		};
+
+		cooling-maps {
+			map1 {
+				trip = <&atrip2>;
+				cooling-device = <&fan0 0 1>;
+			};
+
+			map2 {
+				trip = <&atrip3>;
+				cooling-device = <&fan0 1 2>;
+			};
+
+			map3 {
+				trip = <&atrip4>;
+				cooling-device = <&fan0 2 3>;
+			};
+		};
+	};
+};
+
+&tpm6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_tpm6>;
+	status = "okay";
+};