| 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 */ |
| }; |
| |
