linux/Documentation/devicetree/bindings/sound/omap-twl4030.txt
Peter Ujfalusi bd0b286e83 ASoC: omap-twl4030: Add support for routing, voice port and jack detect
Update the common machine driver to support more boards including Zoom2 and
SDP3430.
- Support for voice port of twl4030
- HS jack plug detection support
- The audio routing can be fine tuned via pdata or via provided routing
  table from DT.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-02 13:04:25 +00:00

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* Texas Instruments SoC with twl4030 based audio setups
Required properties:
- compatible: "ti,omap-twl4030"
- ti,model: Name of the sound card (for example "omap3beagle")
- ti,mcbsp: phandle for the McBSP node
- ti,codec: phandle for the twl4030 audio node
Optional properties:
- ti,mcbsp-voice: phandle for the McBSP node connected to the voice port of twl
- ti, jack-det-gpio: Jack detect GPIO
- ti,audio-routing: List of 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.
If the routing is not provided all possible connection will be available
Available audio endpoints for the audio-routing table:
Board connectors:
* Headset Stereophone
* Earpiece Spk
* Handsfree Spk
* Ext Spk
* Main Mic
* Sub Mic
* Headset Mic
* Carkit Mic
* Digital0 Mic
* Digital1 Mic
* Line In
twl4030 pins:
* HSOL
* HSOR
* EARPIECE
* HFL
* HFR
* PREDRIVEL
* PREDRIVER
* CARKITL
* CARKITR
* MAINMIC
* SUBMIC
* HSMIC
* DIGIMIC0
* DIGIMIC1
* CARKITMIC
* AUXL
* AUXR
* Headset Mic Bias
* Mic Bias 1 /* Used for Main Mic or Digimic0 */
* Mic Bias 2 /* Used for Sub Mic or Digimic1 */
Example:
sound {
compatible = "ti,omap-twl4030";
ti,model = "omap3beagle";
ti,mcbsp = <&mcbsp2>;
ti,codec = <&twl_audio>;
};