Documentation/devicetree/bindings/sound/sirf-audio.txt

   1 * SiRF atlas6 and prima2 internal audio codec and port based audio setups
   2
   3 Required properties:
   4 - compatible: "sirf,sirf-audio-card"
   5 - sirf,audio-platform: phandle for the platform node
   6 - sirf,audio-codec: phandle for the SiRF internal codec node
   7
   8 Optional properties:
   9 - hp-pa-gpios: Need to be present if the board need control external
  10   headphone amplifier.
  11 - spk-pa-gpios: Need to be present if the board need control external
  12   speaker amplifier.
  13 - hp-switch-gpios: Need to be present if the board capable to detect jack
  14   insertion, removal.
  15
  16 Available audio endpoints for the audio-routing table:
  17
  18 Board connectors:
  19  * Headset Stereophone
  20  * Ext Spk
  21  * Line In
  22  * Mic
  23
  24 SiRF internal audio codec pins:
  25  * HPOUTL
  26  * HPOUTR
  27  * SPKOUT
  28  * Ext Mic
  29  * Mic Bias
  30
  31 Example:
  32
  33 sound {
  34                 compatible = "sirf,sirf-audio-card";
  35                 sirf,audio-codec = <&audiocodec>;
  36                 sirf,audio-platform = <&audioport>;
  37                 hp-pa-gpios = <&gpio 44 0>;
  38                 spk-pa-gpios = <&gpio 46 0>;
  39                 hp-switch-gpios = <&gpio 45 0>;
  40 };
  41