39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Stefan Agner <stefan@agner.ch>
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Date: Mon, 11 Jan 2021 11:38:54 +0100
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Subject: arm64: dts: meson: g12b: add GPIO fan support
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Add simple GPIO fan node to support a fan on GPIO J8. Unfortunately the
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pad used to control the fan does not support real PWM, hence the RPM
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cannot be modulated.
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Signed-off-by: Stefan Agner <stefan@agner.ch>
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Tested-by: Ricardo Pardini <ricardo@pardini.net>
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---
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arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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index 667d2b774924..e896bac3c5c1 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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@@ -47,6 +47,15 @@ fan: gpio-fan {
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#cooling-cells = <2>;
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};
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+ /* 5V 80x80x10.8mm cooling fan from Hardkernel shop... */
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+ fan0: gpio-fan {
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+ #cooling-cells = <2>;
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+ compatible = "gpio-fan";
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+ gpio-fan,speed-map = <0 0 1600 1>;
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+ gpios = <&gpio_ao GPIOAO_10 GPIO_ACTIVE_HIGH>;
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+ status = "okay";
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+ };
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+
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leds {
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compatible = "gpio-leds";
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--
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Armbian
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