Documentation/devicetree/bindings/sound/simple-audio-mux.yaml

   1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/simple-audio-mux.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Simple Audio Multiplexer
   8
   9 maintainers:
  10   - Alexandre Belloni <aleandre.belloni@bootlin.com>
  11
  12 description: |
  13   Simple audio multiplexers are driven using gpios, allowing to select which of
  14   their input line is connected to the output line.
  15
  16 allOf:
  17   - $ref: dai-common.yaml#
  18
  19 properties:
  20   compatible:
  21     const: simple-audio-mux
  22
  23   mux-gpios:
  24     description: |
  25       GPIOs used to select the input line.
  26
  27   state-labels:
  28     description: State of input line. default is "Input 1", "Input 2"
  29     $ref: /schemas/types.yaml#/definitions/string-array
  30     maxItems: 2
  31
  32   idle-state:
  33     description: If present specifies the state when the mux is powered down
  34     $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
  35
  36   sound-name-prefix: true
  37
  38 required:
  39   - compatible
  40   - mux-gpios
  41
  42 additionalProperties: false
  43
  44 examples:
  45   - |
  46     mux {
  47         compatible = "simple-audio-mux";
  48         mux-gpios = <&gpio 3 0>;
  49         state-labels = "Label_A", "Label_B";
  50         idle-state = <0>;
  51     };