linux/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
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   1NVIDIA Tegra audio complex
   2
   3Required properties:
   4- compatible : "nvidia,tegra-audio-wm9712"
   5- clocks : Must contain an entry for each entry in clock-names.
   6- clock-names : Must include the following entries:
   7  "pll_a" (The Tegra clock of that name),
   8  "pll_a_out0" (The Tegra clock of that name),
   9  "mclk" (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
  10- nvidia,model : The user-visible name of this sound complex.
  11- nvidia,audio-routing : A list of the connections between audio components.
  12  Each entry is a pair of strings, the first being the connection's sink,
  13  the second being the connection's source. Valid names for sources and
  14  sinks are the WM9712's pins, and the jacks on the board:
  15
  16  WM9712 pins:
  17
  18  * MONOOUT
  19  * HPOUTL
  20  * HPOUTR
  21  * LOUT2
  22  * ROUT2
  23  * OUT3
  24  * LINEINL
  25  * LINEINR
  26  * PHONE
  27  * PCBEEP
  28  * MIC1
  29  * MIC2
  30  * Mic Bias
  31
  32  Board connectors:
  33
  34  * Headphone
  35  * LineIn
  36  * Mic
  37
  38- nvidia,ac97-controller : The phandle of the Tegra AC97 controller
  39
  40
  41Example:
  42
  43sound {
  44        compatible = "nvidia,tegra-audio-wm9712-colibri_t20",
  45                         "nvidia,tegra-audio-wm9712";
  46        nvidia,model = "Toradex Colibri T20";
  47
  48        nvidia,audio-routing =
  49                "Headphone", "HPOUTL",
  50                "Headphone", "HPOUTR",
  51                "LineIn", "LINEINL",
  52                "LineIn", "LINEINR",
  53                "Mic", "MIC1";
  54
  55        nvidia,ac97-controller = <&ac97>;
  56
  57        clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
  58        clock-names = "pll_a", "pll_a_out0", "mclk";
  59};
  60