0001 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/leds/cznic,turris-omnia-leds.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: CZ.NIC's Turris Omnia LEDs driver
0008
0009 maintainers:
0010 - Marek Behún <kabel@kernel.org>
0011
0012 description:
0013 This module adds support for the RGB LEDs found on the front panel of the
0014 Turris Omnia router. There are 12 RGB LEDs that are controlled by a
0015 microcontroller that communicates via the I2C bus. Each LED is described
0016 as a subnode of this I2C device.
0017
0018 properties:
0019 compatible:
0020 const: cznic,turris-omnia-leds
0021
0022 reg:
0023 description: I2C slave address of the microcontroller.
0024 maxItems: 1
0025
0026 "#address-cells":
0027 const: 1
0028
0029 "#size-cells":
0030 const: 0
0031
0032 patternProperties:
0033 "^multi-led@[0-9a-b]$":
0034 type: object
0035 $ref: leds-class-multicolor.yaml#
0036 unevaluatedProperties: false
0037
0038 description:
0039 This node represents one of the RGB LED devices on Turris Omnia.
0040 No subnodes need to be added for subchannels since this controller only
0041 supports RGB LEDs.
0042
0043 properties:
0044 reg:
0045 minimum: 0
0046 maximum: 11
0047 description:
0048 This property identifies one of the LEDs on the front panel of the
0049 Turris Omnia router.
0050
0051 required:
0052 - reg
0053
0054 additionalProperties: false
0055
0056 examples:
0057 - |
0058
0059 #include <dt-bindings/leds/common.h>
0060
0061 i2c0 {
0062 #address-cells = <1>;
0063 #size-cells = <0>;
0064
0065 led-controller@2b {
0066 compatible = "cznic,turris-omnia-leds";
0067 reg = <0x2b>;
0068 #address-cells = <1>;
0069 #size-cells = <0>;
0070
0071 multi-led@0 {
0072 /*
0073 * No subnodes are needed, this controller only supports RGB
0074 * LEDs.
0075 */
0076 reg = <0>;
0077 color = <LED_COLOR_ID_MULTI>;
0078 function = LED_FUNCTION_POWER;
0079 linux,default-trigger = "heartbeat";
0080 };
0081
0082 multi-led@a {
0083 reg = <0xa>;
0084 color = <LED_COLOR_ID_MULTI>;
0085 function = LED_FUNCTION_INDICATOR;
0086 function-enumerator = <1>;
0087 };
0088 };
0089 };
0090
0091 ...
