xref: /linux/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml (revision c16c8bfa09d5f318c1bd65698d058d3739970c24) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/leds/cznic,turris-omnia-leds.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: CZ.NIC's Turris Omnia LEDs driver
8
9maintainers:
10  - Marek Behún <kabel@kernel.org>
11
12description:
13  This module adds support for the RGB LEDs found on the front panel of the
14  Turris Omnia router. There are 12 RGB LEDs that are controlled by a
15  microcontroller that communicates via the I2C bus. Each LED is described
16  as a subnode of this I2C device.
17
18properties:
19  compatible:
20    const: cznic,turris-omnia-leds
21
22  reg:
23    description: I2C slave address of the microcontroller.
24    maxItems: 1
25
26  "#address-cells":
27    const: 1
28
29  "#size-cells":
30    const: 0
31
32patternProperties:
33  "^multi-led@[0-9a-b]$":
34    type: object
35    $ref: leds-class-multicolor.yaml#
36    description:
37      This node represents one of the RGB LED devices on Turris Omnia.
38      No subnodes need to be added for subchannels since this controller only
39      supports RGB LEDs.
40
41    properties:
42      reg:
43        minimum: 0
44        maximum: 11
45        description:
46          This property identifies one of the LEDs on the front panel of the
47          Turris Omnia router.
48
49    required:
50      - reg
51
52additionalProperties: false
53
54examples:
55  - |
56
57    #include <dt-bindings/leds/common.h>
58
59    i2c0 {
60        #address-cells = <1>;
61        #size-cells = <0>;
62
63        led-controller@2b {
64            compatible = "cznic,turris-omnia-leds";
65            reg = <0x2b>;
66            #address-cells = <1>;
67            #size-cells = <0>;
68
69            multi-led@0 {
70                /*
71                 * No subnodes are needed, this controller only supports RGB
72                 * LEDs.
73                 */
74                reg = <0>;
75                color = <LED_COLOR_ID_MULTI>;
76                function = LED_FUNCTION_POWER;
77                linux,default-trigger = "heartbeat";
78            };
79
80            multi-led@a {
81                reg = <0xa>;
82                color = <LED_COLOR_ID_MULTI>;
83                function = LED_FUNCTION_INDICATOR;
84                function-enumerator = <1>;
85            };
86        };
87    };
88
89...
90