From 805b4db8076d47a181032a87db8a732fc8d94596 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sun, 28 Apr 2013 22:49:52 +0200 Subject: [PATCH] ARM: bcm2835: Add Raspberry Pi's ACT LED to DT The Raspberry Pi board has one GPIO-controlled LED labeled "ACT". Add it to the DT via the gpio-leds driver, so users can control it from userspace. If CONFIG_LEDS_TRIGGER_HEARTBEAT is set, the LED will also signal some sign of life. The GPIO circuitry is low-active. And as the bootloader may decide to switch the LED on at boot time, the default state is 'keep'. Signed-off-by: Daniel Mack Signed-off-by: Stephen Warren --- arch/arm/boot/dts/bcm2835-rpi-b.dts | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index aafda174a605..6e9deb786a7d 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts @@ -8,6 +8,17 @@ memory { reg = <0 0x10000000>; }; + + leds { + compatible = "gpio-leds"; + + act { + label = "ACT"; + gpios = <&gpio 16 1>; + default-state = "keep"; + linux,default-trigger = "heartbeat"; + }; + }; }; &gpio { -- 2.20.1