kernel/Documentation/devicetree/bindings/sound/atmel-wm8904.txt

   1 Atmel ASoC driver with wm8904 audio codec complex
   2
   3 Required properties:
   4   - compatible: "atmel,asoc-wm8904"
   5   - atmel,model: The user-visible name of this sound complex.
   6   - atmel,audio-routing: A list of the connections between audio components.
   7     Each entry is a pair of strings, the first being the connection's sink,
   8     the second being the connection's source. Valid names for sources and
   9     sinks are the WM8904's pins, and the jacks on the board:
  10
  11     WM8904 pins:
  12
  13     * IN1L
  14     * IN1R
  15     * IN2L
  16     * IN2R
  17     * IN3L
  18     * IN3R
  19     * HPOUTL
  20     * HPOUTR
  21     * LINEOUTL
  22     * LINEOUTR
  23     * MICBIAS
  24
  25     Board connectors:
  26
  27     * Headphone Jack
  28     * Line In Jack
  29     * Mic
  30
  31   - atmel,ssc-controller: The phandle of the SSC controller
  32   - atmel,audio-codec: The phandle of the WM8904 audio codec
  33
  34 Optional properties:
  35   - pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
  36
  37 Example:
  38 sound {
  39         compatible = "atmel,asoc-wm8904";
  40         pinctrl-names = "default";
  41         pinctrl-0 = <&pinctrl_pck0_as_mck>;
  42
  43         atmel,model = "wm8904 @ AT91SAM9N12EK";
  44
  45         atmel,audio-routing =
  46                 "Headphone Jack", "HPOUTL",
  47                 "Headphone Jack", "HPOUTR",
  48                 "IN2L", "Line In Jack",
  49                 "IN2R", "Line In Jack",
  50                 "Mic", "MICBIAS",
  51                 "IN1L", "Mic";
  52
  53         atmel,ssc-controller = <&ssc0>;
  54         atmel,audio-codec = <&wm8904>;
  55 };