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- NVIDIA Tegra audio complex
- Required properties:
- - compatible : "nvidia,tegra-audio-wm8903"
- - nvidia,model : The user-visible name of this sound complex.
- - nvidia,audio-routing : A list of the connections between audio components.
- Each entry is a pair of strings, the first being the connection's sink,
- the second being the connection's source. Valid names for sources and
- sinks are the WM8903's pins, and the jacks on the board:
- WM8903 pins:
- * IN1L
- * IN1R
- * IN2L
- * IN2R
- * IN3L
- * IN3R
- * DMICDAT
- * HPOUTL
- * HPOUTR
- * LINEOUTL
- * LINEOUTR
- * LOP
- * LON
- * ROP
- * RON
- * MICBIAS
- Board connectors:
- * Headphone Jack
- * Int Spk
- * Mic Jack
- - nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
- - nvidia,audio-codec : The phandle of the WM8903 audio codec
- Optional properties:
- - nvidia,spkr-en-gpios : The GPIO that enables the speakers
- - nvidia,hp-mute-gpios : The GPIO that mutes the headphones
- - nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
- - nvidia,int-mic-en-gpios : The GPIO that enables the internal microphone
- - nvidia,ext-mic-en-gpios : The GPIO that enables the external microphone
- Example:
- sound {
- compatible = "nvidia,tegra-audio-wm8903-harmony",
- "nvidia,tegra-audio-wm8903"
- nvidia,model = "tegra-wm8903-harmony";
- nvidia,audio-routing =
- "Headphone Jack", "HPOUTR",
- "Headphone Jack", "HPOUTL",
- "Int Spk", "ROP",
- "Int Spk", "RON",
- "Int Spk", "LOP",
- "Int Spk", "LON",
- "Mic Jack", "MICBIAS",
- "IN1L", "Mic Jack";
- nvidia,i2s-controller = <&i2s1>;
- nvidia,audio-codec = <&wm8903>;
- nvidia,spkr-en-gpios = <&codec 2 0>;
- nvidia,hp-det-gpios = <&gpio 178 0>; /* gpio PW2 */
- nvidia,int-mic-en-gpios = <&gpio 184 0>; /*gpio PX0 */
- nvidia,ext-mic-en-gpios = <&gpio 185 0>; /* gpio PX1 */
- };
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