Documentation/devicetree/bindings/sound/audio-graph-port.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/audio-graph-port.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Audio Graph Card 'port' Node Bindings
   8
   9 maintainers:
  10   - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  11
  12 select: false
  13
  14 properties:
  15   port:
  16     description: single OF-Graph subnode
  17     type: object
  18     properties:
  19       reg:
  20         maxItems: 1
  21       prefix:
  22         description: "device name prefix"
  23         $ref: /schemas/types.yaml#/definitions/string
  24       convert-rate:
  25         description: CPU to Codec rate convert.
  26         $ref: /schemas/types.yaml#/definitions/uint32
  27       convert-channels:
  28         description: CPU to Codec rate channels.
  29         $ref: /schemas/types.yaml#/definitions/uint32
  30     patternProperties:
  31       "^endpoint(@[0-9a-f]+)?":
  32         type: object
  33         properties:
  34           remote-endpoint:
  35             maxItems: 1
  36           mclk-fs:
  37             description: |
  38               Multiplication factor between stream rate and codec mclk.
  39               When defined, mclk-fs property defined in dai-link sub nodes are
  40               ignored.
  41             $ref: /schemas/types.yaml#/definitions/uint32
  42           frame-inversion:
  43             description: dai-link uses frame clock inversion
  44             $ref: /schemas/types.yaml#/definitions/flag
  45           bitclock-inversion:
  46             description: dai-link uses bit clock inversion
  47             $ref: /schemas/types.yaml#/definitions/flag
  48           frame-master:
  49             description: Indicates dai-link frame master.
  50             $ref: /schemas/types.yaml#/definitions/phandle
  51           bitclock-master:
  52             description: Indicates dai-link bit clock master
  53             $ref: /schemas/types.yaml#/definitions/phandle
  54           dai-format:
  55             description: audio format.
  56             items:
  57               enum:
  58                 - i2s
  59                 - right_j
  60                 - left_j
  61                 - dsp_a
  62                 - dsp_b
  63                 - ac97
  64                 - pdm
  65                 - msb
  66                 - lsb
  67           convert-rate:
  68             description: CPU to Codec rate convert.
  69             $ref: /schemas/types.yaml#/definitions/uint32
  70           convert-channels:
  71             description: CPU to Codec rate channels.
  72             $ref: /schemas/types.yaml#/definitions/uint32
  73
  74         required:
  75           - remote-endpoint
  76
  77   ports:
  78     description: multi OF-Graph subnode
  79     type: object
  80     patternProperties:
  81       "^port(@[0-9a-f]+)?":
  82         $ref: "#/properties/port"
  83
  84 additionalProperties: true