43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From b94a0698f21a2d8f6623b69fc17fe9491bc22a9b Mon Sep 17 00:00:00 2001
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Message-Id: <b94a0698f21a2d8f6623b69fc17fe9491bc22a9b.1622055679.git.stefan@agner.ch>
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In-Reply-To: <0955f7e64f302c5c331b90fd07fc48dfb677eab5.1622055679.git.stefan@agner.ch>
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References: <0955f7e64f302c5c331b90fd07fc48dfb677eab5.1622055679.git.stefan@agner.ch>
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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: [PATCH 08/11] 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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---
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arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 11 +++++++++++
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1 file changed, 11 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 9b1541ee2273..8ad7c3ee1aa3 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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@@ -39,6 +39,17 @@ emmc_pwrseq: emmc-pwrseq {
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reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
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};
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+ /*
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+ * 5V 80x80x10.8mm cooling fan from Hardkernel shop.
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+ */
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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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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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poll-interval = <100>;
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--
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2.31.1
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