linux/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8753.txt
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   1NVIDIA Tegra audio complex
   2
   3Required properties:
   4- compatible : "nvidia,tegra-audio-wm8753"
   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 WM8753's pins, and the jacks on the board:
  15
  16  WM8753 pins:
  17
  18  * LOUT1
  19  * LOUT2
  20  * ROUT1
  21  * ROUT2
  22  * MONO1
  23  * MONO2
  24  * OUT3
  25  * OUT4
  26  * LINE1
  27  * LINE2
  28  * RXP
  29  * RXN
  30  * ACIN
  31  * ACOP
  32  * MIC1N
  33  * MIC1
  34  * MIC2N
  35  * MIC2
  36  * Mic Bias
  37
  38  Board connectors:
  39
  40  * Headphone Jack
  41  * Mic Jack
  42
  43- nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
  44- nvidia,audio-codec : The phandle of the WM8753 audio codec
  45Example:
  46
  47sound {
  48        compatible = "nvidia,tegra-audio-wm8753-whistler",
  49                     "nvidia,tegra-audio-wm8753"
  50        nvidia,model = "tegra-wm8753-harmony";
  51
  52        nvidia,audio-routing =
  53                "Headphone Jack", "LOUT1",
  54                "Headphone Jack", "ROUT1";
  55
  56        nvidia,i2s-controller = <&i2s1>;
  57        nvidia,audio-codec = <&wm8753>;
  58
  59        clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
  60        clock-names = "pll_a", "pll_a_out0", "mclk";
  61};
  62
  63