Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/loongson,ls-audio-card.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Loongson 7axxx/2kxxx ASoC audio sound card driver
   8
   9 maintainers:
  10   - Yingkun Meng <mengyingkun@loongson.cn>
  11
  12 description:
  13   The binding describes the sound card present in loongson
  14   7axxx/2kxxx platform. The sound card is an ASoC component
  15   which uses Loongson I2S controller to transfer the audio data.
  16
  17 properties:
  18   compatible:
  19     const: loongson,ls-audio-card
  20
  21   model:
  22     $ref: /schemas/types.yaml#/definitions/string
  23     description: User specified audio sound card name
  24
  25   mclk-fs:
  26     $ref: simple-card.yaml#/definitions/mclk-fs
  27
  28   cpu:
  29     description: Holds subnode which indicates cpu dai.
  30     type: object
  31     additionalProperties: false
  32     properties:
  33       sound-dai:
  34         maxItems: 1
  35     required:
  36       - sound-dai
  37
  38   codec:
  39     description: Holds subnode which indicates codec dai.
  40     type: object
  41     additionalProperties: false
  42     properties:
  43       sound-dai:
  44         maxItems: 1
  45     required:
  46       - sound-dai
  47
  48 required:
  49   - compatible
  50   - model
  51   - mclk-fs
  52   - cpu
  53   - codec
  54
  55 additionalProperties: false
  56
  57 examples:
  58   - |
  59     sound {
  60         compatible = "loongson,ls-audio-card";
  61         model = "loongson-audio";
  62         mclk-fs = <512>;
  63
  64         cpu {
  65             sound-dai = <&i2s>;
  66         };
  67         codec {
  68              sound-dai = <&es8323>;
  69         };
  70     };