Commit 5a71917f authored by Linus Walleij's avatar Linus Walleij Committed by Pavel Machek
Browse files

dt-bindings: leds: Add regulator-led binding 



The regulator is a LED connected directly to a regulator and with
its brightness controlled by the voltage of the regulator.

Cc: devicetree@vger.kernel.org
Cc: Antonio Ospite <ao2@ao2.it>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
parent c55f75c4

Documentation/devicetree/bindings/leds/regulator-led.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/regulator-led.yaml#

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



title: Device Tree Bindings for Regulator LEDs



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



description: |

  Regulator LEDs are powered by a single regulator such that they can

  be turned on or off by enabling or disabling the regulator. The available

  brightness settings will be inferred from the available voltages on the

  regulator, and any constraints on the voltage or current will need to be

  specified on the regulator.



allOf:

  - $ref: common.yaml#



properties:

  $nodename:

    pattern: '^led.*$'



  compatible:

    const: regulator-led



  vled-supply:

    description:

      The regulator controlling the current to the LED.



  function: true

  color: true

  linux,default-trigger: true

  default-state: true



required:

  - compatible

  - vled-supply



additionalProperties: false



examples:

  - |

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



    led-heartbeat {

        compatible = "regulator-led";

        vled-supply = <&regulator>;

        function = LED_FUNCTION_STATUS;

        color = <LED_COLOR_ID_BLUE>;

        linux,default-trigger = "heartbeat";

    };

...