[v2,1/2] dt-bindings: leds: add cznic,turris-omnia-leds binding

diff --git a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/cznic,turris-omnia-leds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CZ.NIC's Turris Omnia LEDs driver
+
+maintainers:
+  - Marek Behún <marek.behun@nic.cz>
+
+description:
+  This module adds support for the RGB LEDs found on the fron panel of the
+  Turris Omnia router. There are 12 RGB LEDs, they are controlled by device's
+  microcontroller with which the system communicates via I2C. Each LED is
+  described as a subnode of this I2C device.
+
+properties:
+  compatible:
+    const: cznic,turris-omnia-leds
+
+  reg:
+    description: I2C slave address of the microcontroller.
+    maxItems: 1
+
+patternProperties:
+  "^led[0-9][0-9]?$":
+    type: object
+    allOf:
+      - $ref: /schemas/leds/common.yaml#
+    description:
+      This node can either represent one channel of a RGB LED or a whole RGB
+      LED.
+
+    properties:
+      led-sources:
+        description:
+          List of device current outputs the LED connects to. If one number is
+          given, the device described by this node will control one channel of a
+          RGB LED. If three numbers are given (one for each channel of a RGB
+          LED), the device described by this node will control one RGB LED. In
+          this case the numbers must increase by one and the first must be a
+          multiple of 3.
+        allOf:
+          - $ref: /schemas/leds/common.yaml#/properties/led-sources
+          - oneOf:
+              - items:
+                  minimum: 0
+                  maximum: 35
+                minItems: 1
+                maxItems: 1
+              - items:
+                  enum: [ [ 0, 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] ]
+
+      color:
+        description:
+          Should be one of LED_COLOR_ID_*. Allowed values are red, green or blue
+          if there is one item in led-sources, otherwise white.
+        allOf:
+          - $ref: /schemas/leds/common.yaml#/properties/color
+          - enum: [ 0, 1, 2, 3 ]
+
+    required:
+      - led-sources
+      - color
+
+examples:
+  - |
+
+    #include <dt-bindings/leds/common.h>
+
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@2b {
+            compatible = "cznic,turris-omnia-leds";
+            reg = <0x2b>;
+
+            led0 {
+                led-sources = <33 34 35>;
+                color = <LED_COLOR_ID_WHITE>;
+                function = LED_FUNCTION_POWER;
+                linux,default-trigger = "heartbeat";
+            };
+
+            led1 {
+                led-sources = <3>;
+                color = <LED_COLOR_ID_RED>;
+                function = LED_FUNCTION_INDICATOR;
+                function-enumerator = <1>;
+            };
+
+            led2 {
+                led-sources = <4>;
+                color = <LED_COLOR_ID_GREEN>;
+                function = LED_FUNCTION_INDICATOR;
+                function-enumerator = <1>;
+            };
+
+            led3 {
+                led-sources = <5>;
+                color = <LED_COLOR_ID_BLUE>;
+                function = LED_FUNCTION_INDICATOR;
+                function-enumerator = <1>;
+            };
+        };
+    };
+
+...