Documentation / devicetree / bindings / sound / allwinner,sun4i-a10-i2s.yaml


Based on kernel version 6.11. Page generated on 2024-09-24 08:21 EST.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 I2S Controller

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

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

  compatible:
    oneOf:
      - const: allwinner,sun4i-a10-i2s
      - const: allwinner,sun6i-a31-i2s
      - const: allwinner,sun8i-a83t-i2s
      - const: allwinner,sun8i-h3-i2s
      - items:
          - const: allwinner,sun8i-r40-i2s
          - const: allwinner,sun8i-h3-i2s
      - items:
          - const: allwinner,sun8i-v3-i2s
          - const: allwinner,sun8i-h3-i2s
      - const: allwinner,sun50i-a64-codec-i2s
      - items:
          - const: allwinner,sun50i-a64-i2s
          - const: allwinner,sun8i-h3-i2s
      - const: allwinner,sun50i-h6-i2s
      - const: allwinner,sun50i-r329-i2s
      - items:
          - const: allwinner,sun20i-d1-i2s
          - const: allwinner,sun50i-r329-i2s

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

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

  clock-names:
    items:
      - const: apb
      - const: mod
 
  # Even though it only applies to subschemas under the conditionals,
  # not listing them here will trigger a warning because of the
  # additionalsProperties set to false.
  dmas: true
  dma-names: true
  resets:
    maxItems: 1

allOf:
  - $ref: dai-common.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - allwinner,sun6i-a31-i2s
              - allwinner,sun8i-a83t-i2s
              - allwinner,sun8i-h3-i2s
              - allwinner,sun50i-a64-codec-i2s
              - allwinner,sun50i-h6-i2s
              - allwinner,sun50i-r329-i2s

    then:
      required:
        - resets

  - if:
      properties:
        compatible:
          contains:
            enum:
              - allwinner,sun8i-a83t-i2s
              - allwinner,sun8i-h3-i2s

    then:
      properties:
        dmas:
          minItems: 1
          items:
            - description: RX DMA Channel
            - description: TX DMA Channel
          description:
            Some controllers cannot receive but can only transmit
            data. In such a case, the RX DMA channel is to be omitted.

        dma-names:
          oneOf:
            - items:
                - const: rx
                - const: tx
            - const: tx
          description:
            Some controllers cannot receive but can only transmit
            data. In such a case, the RX name is to be omitted.

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

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

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

unevaluatedProperties: false

examples:
  - |
    i2s0: i2s@1c22400 {
        #sound-dai-cells = <0>;
        compatible = "allwinner,sun4i-a10-i2s";
        reg = <0x01c22400 0x400>;
        interrupts = <0 16 4>;
        clocks = <&apb0_gates 3>, <&i2s0_clk>;
        clock-names = "apb", "mod";
        dmas = <&dma 0 3>, <&dma 0 3>;
        dma-names = "rx", "tx";
    };
 
...