kernel/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-codec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 Codec Device Tree Bindings

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

properties:
  "#sound-dai-cells":
    const: 0

  compatible:
    enum:
      - allwinner,sun4i-a10-codec
      - allwinner,sun6i-a31-codec
      - allwinner,sun7i-a20-codec
      - allwinner,sun8i-a23-codec
      - allwinner,sun8i-h3-codec
      - allwinner,sun8i-v3s-codec

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: Bus Clock
      - description: Module Clock

  clock-names:
    items:
      - const: apb
      - const: codec

  dmas:
    items:
      - description: RX DMA Channel
      - description: TX DMA Channel

  dma-names:
    items:
      - const: rx
      - const: tx

  resets:
    maxItems: 1

  allwinner,audio-routing:
    description: |-
      A list of the connections between audio components.  Each entry
      is a pair of strings, the first being the connection's sink, the
      second being the connection's source.
    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
    minItems: 2
    maxItems: 18
    items:
      enum:
        # Audio Pins on the SoC
        - HP
        - HPCOM
        - LINEIN
        - LINEOUT
        - MIC1
        - MIC2
        - MIC3

        # Microphone Biases from the SoC
        - HBIAS
        - MBIAS

        # Board Connectors
        - Headphone
        - Headset Mic
        - Line In
        - Line Out
        - Mic
        - Speaker

  allwinner,codec-analog-controls:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: Phandle to the codec analog controls in the PRCM

  allwinner,pa-gpios:
    maxItems: 1
    description: GPIO to enable the external amplifier

required:
  - "#sound-dai-cells"
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - dmas
  - dma-names

allOf:
  - if:
      properties:
        compatible:
          enum:
            - allwinner,sun6i-a31-codec
            - allwinner,sun8i-a23-codec
            - allwinner,sun8i-h3-codec
            - allwinner,sun8i-v3s-codec

    then:
      if:
        properties:
          compatible:
            const: allwinner,sun6i-a31-codec

      then:
        required:
          - resets
          - allwinner,audio-routing

      else:
        required:
          - resets
          - allwinner,audio-routing
          - allwinner,codec-analog-controls

  - if:
      properties:
        compatible:
          enum:
            - allwinner,sun6i-a31-codec

    then:
      properties:
        allwinner,audio-routing:
          items:
            enum:
              - HP
              - HPCOM
              - LINEIN
              - LINEOUT
              - MIC1
              - MIC2
              - MIC3
              - HBIAS
              - MBIAS
              - Headphone
              - Headset Mic
              - Line In
              - Line Out
              - Mic
              - Speaker

  - if:
      properties:
        compatible:
          enum:
            - allwinner,sun8i-a23-codec

    then:
      properties:
        allwinner,audio-routing:
          items:
            enum:
              - HP
              - HPCOM
              - LINEIN
              - MIC1
              - MIC2
              - HBIAS
              - MBIAS
              - Headphone
              - Headset Mic
              - Line In
              - Line Out
              - Mic
              - Speaker

  - if:
      properties:
        compatible:
          enum:
            - allwinner,sun8i-h3-codec

    then:
      properties:
        allwinner,audio-routing:
          items:
            enum:
              - HP
              - HPCOM
              - LINEIN
              - LINEOUT
              - MIC1
              - MIC2
              - HBIAS
              - MBIAS
              - Headphone
              - Headset Mic
              - Line In
              - Line Out
              - Mic
              - Speaker

  - if:
      properties:
        compatible:
          enum:
            - allwinner,sun8i-v3s-codec

    then:
      properties:
        allwinner,audio-routing:
          items:
            enum:
              - HP
              - HPCOM
              - MIC1
              - HBIAS
              - Headphone
              - Headset Mic
              - Line In
              - Line Out
              - Mic
              - Speaker

additionalProperties: false

examples:
  - |
    codec@1c22c00 {
        #sound-dai-cells = <0>;
        compatible = "allwinner,sun7i-a20-codec";
        reg = <0x01c22c00 0x40>;
        interrupts = <0 30 4>;
        clocks = <&apb0_gates 0>, <&codec_clk>;
        clock-names = "apb", "codec";
        dmas = <&dma 0 19>, <&dma 0 19>;
        dma-names = "rx", "tx";
    };

  - |
    codec@1c22c00 {
        #sound-dai-cells = <0>;
        compatible = "allwinner,sun6i-a31-codec";
        reg = <0x01c22c00 0x98>;
        interrupts = <0 29 4>;
        clocks = <&ccu 61>, <&ccu 135>;
        clock-names = "apb", "codec";
        resets = <&ccu 42>;
        dmas = <&dma 15>, <&dma 15>;
        dma-names = "rx", "tx";
        allwinner,audio-routing =
            "Headphone", "HP",
            "Speaker", "LINEOUT",
            "LINEIN", "Line In",
            "MIC1", "MBIAS",
            "MIC1", "Mic",
            "MIC2", "HBIAS",
            "MIC2", "Headset Mic";
    };

...