Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 23 Apr 2024 14:46:14 +0200 | Subject | Re: [PATCH] arm64: dts: ti: am64-phyboard-electra: Add overlay to enable a GPIO fan | From | Wadim Egorov <> |
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Am 19.04.24 um 21:31 schrieb Nathan Morrisson: > 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: Nathan Morrisson <nmorrisson@phytec.com>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
> --- > arch/arm64/boot/dts/ti/Makefile | 4 ++ > .../k3-am642-phyboard-electra-gpio-fan.dtso | 50 +++++++++++++++++++ > 2 files changed, 54 insertions(+) > create mode 100644 arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso > > diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile > index 9a722c2473fb..fd91cf40af6d 100644 > --- a/arch/arm64/boot/dts/ti/Makefile > +++ b/arch/arm64/boot/dts/ti/Makefile > @@ -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 += -@ > diff --git a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso > new file mode 100644 > index 000000000000..5057658061b4 > --- /dev/null > +++ b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso > @@ -0,0 +1,50 @@ > +// 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>; > + }; > + }; > + }; > +};
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