Documentation/devicetree/bindings/leds/regulator-led.yaml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/regulator-led.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Device Tree Bindings for Regulator LEDs

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

description: |
  Regulator LEDs are powered by a single regulator such that they can
  be turned on or off by enabling or disabling the regulator. The available
  brightness settings will be inferred from the available voltages on the
  regulator, and any constraints on the voltage or current will need to be
  specified on the regulator.

allOf:
  - $ref: common.yaml#

properties:
  $nodename:
    pattern: '^led.*$'

  compatible:
    const: regulator-led

  vled-supply:
    description:
      The regulator controlling the current to the LED.

  function: true
  color: true
  linux,default-trigger: true
  default-state: true

required:
  - compatible
  - vled-supply

additionalProperties: false

examples:
  - |
    #include <dt-bindings/leds/common.h>

    led-heartbeat {
        compatible = "regulator-led";
        vled-supply = <&regulator>;
        function = LED_FUNCTION_STATUS;
        color = <LED_COLOR_ID_BLUE>;
        linux,default-trigger = "heartbeat";
    };
...