dt-bindings: leds: Add Qualcomm Light Pulse Generator binding

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/leds/leds-qcom-lpg.yaml#

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

title: Qualcomm Light Pulse Generator

maintainers:

  - Bjorn Andersson <bjorn.andersson@linaro.org>

description: >

  The Qualcomm Light Pulse Generator consists of three different hardware blocks;

  a ramp generator with lookup table, the light pulse generator and a three

  channel current sink. These blocks are found in a wide range of Qualcomm PMICs.

properties:

  compatible:

    enum:

      - qcom,pm8150b-lpg

      - qcom,pm8150l-lpg

      - qcom,pm8916-pwm

      - qcom,pm8941-lpg

      - qcom,pm8994-lpg

      - qcom,pmc8180c-lpg

      - qcom,pmi8994-lpg

      - qcom,pmi8998-lpg

  "#pwm-cells":

    const: 2

  "#address-cells":

    const: 1

  "#size-cells":

    const: 0

  qcom,power-source:

    $ref: /schemas/types.yaml#/definitions/uint32

    description:

      power-source used to drive the output, as defined in the datasheet.

      Should be specified if the TRILED block is present

    enum: [0, 1, 3]

  qcom,dtest:

    $ref: /schemas/types.yaml#/definitions/uint32-matrix

    description: >

      A list of integer pairs, where each pair represent the dtest line the

      particular channel should be connected to and the flags denoting how the

      value should be outputed, as defined in the datasheet. The number of

      pairs should be the same as the number of channels.

    items:

      items:

        - description: dtest line to attach

        - description: flags for the attachment

  multi-led:

    type: object

    $ref: leds-class-multicolor.yaml#

    properties:

      "#address-cells":

        const: 1

      "#size-cells":

        const: 0

    patternProperties:

      "^led@[0-9a-f]$":

        type: object

        $ref: common.yaml#

patternProperties:

  "^led@[0-9a-f]$":

    type: object

    $ref: common.yaml#

    properties:

      reg: true

    required:

      - reg

required:

  - compatible

additionalProperties: false

examples:

  - |

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

    led-controller {

      compatible = "qcom,pmi8994-lpg";

      #address-cells = <1>;

      #size-cells = <0>;

      qcom,power-source = <1>;

      qcom,dtest = <0 0>,

                   <0 0>,

                   <0 0>,

                   <4 1>;

      led@1 {

        reg = <1>;

        color = <LED_COLOR_ID_GREEN>;

        function = LED_FUNCTION_INDICATOR;

        function-enumerator = <1>;

      };

      led@2 {

        reg = <2>;

        color = <LED_COLOR_ID_GREEN>;

        function = LED_FUNCTION_INDICATOR;

        function-enumerator = <0>;

        default-state = "on";

      };

      led@3 {

        reg = <3>;

        color = <LED_COLOR_ID_GREEN>;

        function = LED_FUNCTION_INDICATOR;

        function-enumerator = <2>;

      };

      led@4 {

        reg = <4>;

        color = <LED_COLOR_ID_GREEN>;

        function = LED_FUNCTION_INDICATOR;

        function-enumerator = <3>;

      };

    };

  - |

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

    led-controller {

      compatible = "qcom,pmi8994-lpg";

      #address-cells = <1>;

      #size-cells = <0>;

      qcom,power-source = <1>;

      multi-led {

        color = <LED_COLOR_ID_RGB>;

        function = LED_FUNCTION_STATUS;

        #address-cells = <1>;

        #size-cells = <0>;

        led@1 {

          reg = <1>;

          color = <LED_COLOR_ID_RED>;

        };

        led@2 {

          reg = <2>;

          color = <LED_COLOR_ID_GREEN>;

        };

        led@3 {

          reg = <3>;

          color = <LED_COLOR_ID_BLUE>;

        };

      };

    };

  - |

    pwm-controller {

      compatible = "qcom,pm8916-pwm";

      #pwm-cells = <2>;

    };

...