nvidia,tegra-audio-wm8903.txt

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    1 NVIDIA Tegra audio complex
    2 
    3 Required properties:
    4 - compatible : "nvidia,tegra-audio-wm8903"
    5 - clocks : Must contain an entry for each entry in clock-names.
    6   See ../clocks/clock-bindings.txt for details.
    7 - clock-names : Must include the following entries:
    8   - pll_a
    9   - pll_a_out0
   10   - mclk (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
   11 - nvidia,model : The user-visible name of this sound complex.
   12 - nvidia,audio-routing : A list of the connections between audio components.
   13   Each entry is a pair of strings, the first being the connection's sink,
   14   the second being the connection's source. Valid names for sources and
   15   sinks are the WM8903's pins (documented in the WM8903 binding document),
   16   and the jacks on the board:
   17 
   18   * Headphone Jack
   19   * Int Spk
   20   * Mic Jack
   21   * Int Mic
   22 
   23 - nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
   24 - nvidia,audio-codec : The phandle of the WM8903 audio codec
   25 
   26 Optional properties:
   27 - nvidia,spkr-en-gpios : The GPIO that enables the speakers
   28 - nvidia,hp-mute-gpios : The GPIO that mutes the headphones
   29 - nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
   30 - nvidia,int-mic-en-gpios : The GPIO that enables the internal microphone
   31 - nvidia,ext-mic-en-gpios : The GPIO that enables the external microphone
   32 - nvidia,headset : The Mic Jack represents state of the headset microphone pin
   33 
   34 Example:
   35 
   36 sound {
   37         compatible = "nvidia,tegra-audio-wm8903-harmony",
   38                      "nvidia,tegra-audio-wm8903"
   39         nvidia,model = "tegra-wm8903-harmony";
   40 
   41         nvidia,audio-routing =
   42                 "Headphone Jack", "HPOUTR",
   43                 "Headphone Jack", "HPOUTL",
   44                 "Int Spk", "ROP",
   45                 "Int Spk", "RON",
   46                 "Int Spk", "LOP",
   47                 "Int Spk", "LON",
   48                 "Mic Jack", "MICBIAS",
   49                 "IN1L", "Mic Jack";
   50 
   51         nvidia,i2s-controller = <&i2s1>;
   52         nvidia,audio-codec = <&wm8903>;
   53 
   54         nvidia,spkr-en-gpios = <&codec 2 0>;
   55         nvidia,hp-det-gpios = <&gpio 178 0>; /* gpio PW2 */
   56         nvidia,int-mic-en-gpios = <&gpio 184 0>; /*gpio PX0 */
   57         nvidia,ext-mic-en-gpios = <&gpio 185 0>; /* gpio PX1 */
   58 
   59         clocks = <&tegra_car 112>, <&tegra_car 113>, <&tegra_car 93>;
   60         clock-names = "pll_a", "pll_a_out0", "mclk";
   61 };
   62

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/nvidia,tegra-audio-wm8903.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/nvidia,tegra-audio-wm8903.txt