Commit 954b585e authored by Nathan Morrisson's avatar Nathan Morrisson Committed by Nishanth Menon
Browse files

arm64: dts: ti: am64-phyboard-electra: Add overlay to enable a GPIO fan 



The phyBOARD-Electra has a GPIO fan header. This overlay enables the fan
header and sets the fan to turn on at 65C.

Signed-off-by: default avatarNathan Morrisson <nmorrisson@phytec.com>
Reviewed-by: default avatarWadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20240419193114.3090084-1-nmorrisson@phytec.com


Signed-off-by: default avatarNishanth Menon <nm@ti.com>
parent 04c6dd34

arch/arm64/boot/dts/ti/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb 
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-pcie.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-usb3.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-gpio-fan.dtbo

dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
@@ -131,6 +132,8 @@ k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \ 
	k3-am62x-sk-csi2-tevi-ov5640.dtbo

k3-am642-evm-icssg1-dualemac-dtbs := \

	k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo

k3-am642-phyboard-electra-gpio-fan-dtbs := \

	k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo

k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \

	k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo

k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \
@@ -174,6 +177,7 @@ DTC_FLAGS_k3-am62-lp-sk += -@ 
DTC_FLAGS_k3-am62a7-sk += -@

DTC_FLAGS_k3-am62p5-sk += -@

DTC_FLAGS_k3-am642-evm += -@

DTC_FLAGS_k3-am642-phyboard-electra-rdk += -@

DTC_FLAGS_k3-am642-tqma64xxl-mbax4xxl += -@

DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@

DTC_FLAGS_k3-am68-sk-base-board += -@

arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso

0 → 100644
+50 −0
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// SPDX-License-Identifier: GPL-2.0-only OR MIT

/*

 * Copyright (C) 2024 PHYTEC America LLC

 * Author: Nathan Morrisson <nmorrisson@phytec.com>

 */



/dts-v1/;

/plugin/;



#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/thermal/thermal.h>

#include "k3-pinctrl.h"



&{/} {

	fan: gpio-fan {

		compatible = "gpio-fan";

		gpio-fan,speed-map = <0 0 8600 1>;

		gpios = <&main_gpio0 28 GPIO_ACTIVE_LOW>;

		#cooling-cells = <2>;

		pinctrl-names = "default";

		pinctrl-0 = <&gpio_fan_pins_default>;

	};

};



&main_pmx0 {

	gpio_fan_pins_default: gpio-fan-default-pins {

		pinctrl-single,pins = <

			AM64X_IOPAD(0x070, PIN_OUTPUT, 7) /* (V18) GPMC0_AD13.GPIO0_28 */

		>;

	};

};



&thermal_zones {

	main0_thermal: main0-thermal {

		trips {

			main0_thermal_trip0: main0-thermal-trip {

				temperature = <65000>;  /* millicelsius */

				hysteresis = <2000>;    /* millicelsius */

				type = "active";

			};

		};



		cooling-maps {

			map0 {

				trip = <&main0_thermal_trip0>;

				cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;

			};

		};

	};

};