86 lines
2.1 KiB
YAML
86 lines
2.1 KiB
YAML
|
# SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/leds/leds-gpio.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: LEDs connected to GPIO lines
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Jacek Anaszewski <jacek.anaszewski@gmail.com>
|
||
|
|
- Pavel Machek <pavel@ucw.cz>
|
||
|
|
|
||
|
|
description:
|
||
|
|
Each LED is represented as a sub-node of the gpio-leds device. Each
|
||
|
|
node's name represents the name of the corresponding LED.
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
const: gpio-leds
|
||
|
|
|
||
|
|
patternProperties:
|
||
|
|
# The first form is preferred, but fall back to just 'led' anywhere in the
|
||
|
|
# node name to at least catch some child nodes.
|
||
|
|
"(^led-[0-9a-f]$|led)":
|
||
|
|
type: object
|
||
|
|
$ref: common.yaml#
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
properties:
|
||
|
|
gpios:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
retain-state-suspended:
|
||
|
|
description:
|
||
|
|
The suspend state can be retained.Such as charge-led gpio.
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
retain-state-shutdown:
|
||
|
|
description:
|
||
|
|
Retain the state of the LED on shutdown. Useful in BMC systems, for
|
||
|
|
example when the BMC is rebooted while the host remains up.
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
required:
|
||
|
|
- gpios
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
|
||
|
|
#include <dt-bindings/gpio/gpio.h>
|
||
|
|
#include <dt-bindings/leds/common.h>
|
||
|
|
|
||
|
|
leds {
|
||
|
|
compatible = "gpio-leds";
|
||
|
|
led-0 {
|
||
|
|
gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
|
||
|
|
linux,default-trigger = "disk-activity";
|
||
|
|
function = LED_FUNCTION_DISK;
|
||
|
|
};
|
||
|
|
|
||
|
|
led-1 {
|
||
|
|
gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
|
||
|
|
/* Keep LED on if BIOS detected hardware fault */
|
||
|
|
default-state = "keep";
|
||
|
|
function = LED_FUNCTION_FAULT;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
run-control {
|
||
|
|
compatible = "gpio-leds";
|
||
|
|
led-0 {
|
||
|
|
gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
|
||
|
|
color = <LED_COLOR_ID_RED>;
|
||
|
|
default-state = "off";
|
||
|
|
};
|
||
|
|
led-1 {
|
||
|
|
gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
|
||
|
|
color = <LED_COLOR_ID_GREEN>;
|
||
|
|
default-state = "on";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
...
|