[v7,1/3] dt-bindings: leds: add cznic,turris-omnia-leds binding

Add device-tree bindings documentation for Turris Omnia RGB LEDs.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
---
 .../leds/cznic,turris-omnia-leds.yaml         | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml

On Thu, Jul 23, 2020 at 6:53 AM Marek Behún <marek.behun@nic.cz> wrote:
>
> Add device-tree bindings documentation for Turris Omnia RGB LEDs.
>
> Signed-off-by: Marek Behún <marek.behun@nic.cz>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> ---
>  .../leds/cznic,turris-omnia-leds.yaml         | 90 +++++++++++++++++++
>  1 file changed, 90 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
>
> diff --git a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
> new file mode 100644
> index 000000000000..24ad1446445e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
> @@ -0,0 +1,90 @@
> +# 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 front panel of the
> +  Turris Omnia router. There are 12 RGB LEDs that are controlled by a
> +  microcontroller that communicates via the I2C bus. 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
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^multi-led[0-9a-f]$":

Doesn't match the example:

Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.example.dt.yaml:
led-controller@2b: 'multi-led@0', 'multi-led@a' do not match any of
the regexes: '^multi-led[0-9a-f]$', 'pinctrl-[0-9]+'

> +    type: object
> +    allOf:
> +      - $ref: leds-class-multicolor.yaml#
> +    description:
> +      This node represents one of the RGB LED devices on Turris Omnia.
> +      No subnodes need to be added for subchannels since this controller only
> +      supports RGB LEDs.
> +
> +    properties:
> +      reg:
> +        minimum: 0
> +        maximum: 11
> +        description:
> +          This property identifies one of the LEDs on the front panel of the
> +          Turris Omnia router.
> +
> +    required:
> +      - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +
> +    #include <dt-bindings/leds/common.h>
> +
> +    i2c0 {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        led-controller@2b {
> +            compatible = "cznic,turris-omnia-leds";
> +            reg = <0x2b>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            multi-led@0 {
> +                /*
> +                 * No subnodes are needed, this controller only supports RGB
> +                 * LEDs.
> +                 */
> +                reg = <0>;
> +                color = <LED_COLOR_ID_MULTI>;
> +                function = LED_FUNCTION_POWER;
> +                linux,default-trigger = "heartbeat";
> +            };
> +
> +            multi-led@a {
> +                reg = <0xa>;
> +                color = <LED_COLOR_ID_MULTI>;
> +                function = LED_FUNCTION_INDICATOR;
> +                function-enumerator = <1>;
> +            };
> +        };
> +    };
> +
> +...
> --
> 2.26.2
>