xref: /freebsd/sys/contrib/device-tree/Bindings/leds/cznic,turris-omnia-leds.yaml (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71) 
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 <marek.behun@nic.cz>
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    allOf:
36      - $ref: leds-class-multicolor.yaml#
37    description:
38      This node represents one of the RGB LED devices on Turris Omnia.
39      No subnodes need to be added for subchannels since this controller only
40      supports RGB LEDs.
41
42    properties:
43      reg:
44        minimum: 0
45        maximum: 11
46        description:
47          This property identifies one of the LEDs on the front panel of the
48          Turris Omnia router.
49
50    required:
51      - reg
52
53additionalProperties: false
54
55examples:
56  - |
57
58    #include <dt-bindings/leds/common.h>
59
60    i2c0 {
61        #address-cells = <1>;
62        #size-cells = <0>;
63
64        led-controller@2b {
65            compatible = "cznic,turris-omnia-leds";
66            reg = <0x2b>;
67            #address-cells = <1>;
68            #size-cells = <0>;
69
70            multi-led@0 {
71                /*
72                 * No subnodes are needed, this controller only supports RGB
73                 * LEDs.
74                 */
75                reg = <0>;
76                color = <LED_COLOR_ID_MULTI>;
77                function = LED_FUNCTION_POWER;
78                linux,default-trigger = "heartbeat";
79            };
80
81            multi-led@a {
82                reg = <0xa>;
83                color = <LED_COLOR_ID_MULTI>;
84                function = LED_FUNCTION_INDICATOR;
85                function-enumerator = <1>;
86            };
87        };
88    };
89
90...
91