atmel-wm8904.txt

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    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 };

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sys/contrib/device-tree/Bindings/sound/atmel-wm8904.txt