dt-bindings: leds: tca6507: convert to YAML

LEDs connected to tca6507

Required properties:

- compatible : should be : "ti,tca6507".

- #address-cells: must be 1

- #size-cells: must be 0

- reg: typically 0x45.

Optional properties:

- gpio-controller: allows lines to be used as output-only GPIOs.

- #gpio-cells: if present, must not be 0.

Each led is represented as a sub-node of the ti,tca6507 device.

LED sub-node properties:

- label : (optional) see Documentation/devicetree/bindings/leds/common.txt

- reg : number of LED line (could be from 0 to 6)

- linux,default-trigger : (optional)

   see Documentation/devicetree/bindings/leds/common.txt

- compatible: either "led" (the default) or "gpio".

Examples:

tca6507@45 {

	compatible = "ti,tca6507";

	#address-cells = <1>;

	#size-cells = <0>;

	reg = <0x45>;

	gpio-controller;

	#gpio-cells = <2>;

	led0: red-aux@0 {

		label = "red:aux";

		reg = <0x0>;

	};

	led1: green-aux@1 {

		label = "green:aux";

		reg = <0x5>;

		linux,default-trigger = "default-on";

	};

	wifi-reset@6 {

		reg = <0x6>;

		compatible = "gpio";

	};

};

# SPDX-License-Identifier: GPL-2.0-only

%YAML 1.2

---

$id: http://devicetree.org/schemas/leds/ti,tca6507.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TCA6507 LED and GPIO controller

maintainers:

  - NeilBrown <neilb@suse.de>

description:

  The TCA6507 is a programmable LED controller connected via I2C that can drive

  7 separate lines either by holding them low, or by pulsing them with modulated

  width.

properties:

  compatible:

    const: ti,tca6507

  reg:

    description: I2C slave address of the controller.

    maxItems: 1

  "#address-cells":

    const: 1

  "#size-cells":

    const: 0

  gpio-controller: true

  "#gpio-cells":

    const: 2

  gpio-line-names: true

patternProperties:

  "^led@[0-6]$":

    type: object

    $ref: common.yaml#

    properties:

      reg:

        minimum: 0

        maximum: 6

    required:

      - reg

  "^gpio@[0-6]$":

    type: object

    properties:

      compatible:

        const: gpio

      reg:

        minimum: 0

        maximum: 6

    additionalProperties: false

    required:

      - reg

      - compatible

if:

  patternProperties:

    "^gpio@[0-6]$":

      properties:

        compatible:

          contains:

            const: gpio

then:

  required:

    - gpio-controller

    - "#gpio-cells"

additionalProperties: false

examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    #include <dt-bindings/leds/common.h>

    i2c0 {

        #address-cells = <1>;

        #size-cells = <0>;

        led-controller@45 {

            compatible = "ti,tca6507";

            #address-cells = <1>;

            #size-cells = <0>;

            reg = <0x45>;

            gpio-controller;

            #gpio-cells = <2>;

            gpio-line-names = "wifi_reset@6";

            led@0 {

                label = "gta04:red:aux";

                reg = <0x0>;

            };

            led@1 {

                label = "gta04:green:aux";

                reg = <0x1>;

            };

            led@3 {

                reg = <0x3>;

                color = <LED_COLOR_ID_RED>;

                function = LED_FUNCTION_POWER;

                linux,default-trigger = "default-on";

            };

            led@4 {

                color = <LED_COLOR_ID_GREEN>;

                function = LED_FUNCTION_POWER;

                reg = <0x4>;

            };

            gpio@6 {

                compatible = "gpio";

                reg = <0x6>;

            };

        };

    };

...