mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 02:21:36 +00:00
fdbcb3cba5
Description of the Asoc machine driver for an at91sam9x5 based board with a wm8731 audio DAC. Wm8731 is clocked by a crystal and used as a master on the SSC/I2S interface. Its connections are a headphone jack and an Line input jack. [Richard: this is based on an old patch from Nicolas that I forward ported and reworked to use only device tree] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
36 lines
980 B
Plaintext
36 lines
980 B
Plaintext
* Atmel at91sam9x5ek wm8731 audio complex
|
|
|
|
Required properties:
|
|
- compatible: "atmel,sam9x5-wm8731-audio"
|
|
- atmel,model: The user-visible name of this sound complex.
|
|
- atmel,ssc-controller: The phandle of the SSC controller
|
|
- atmel,audio-codec: The phandle of the WM8731 audio codec
|
|
- atmel,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.
|
|
|
|
Available audio endpoints for the audio-routing table:
|
|
|
|
Board connectors:
|
|
* Headphone Jack
|
|
* Line In Jack
|
|
|
|
wm8731 pins:
|
|
cf Documentation/devicetree/bindings/sound/wm8731.txt
|
|
|
|
Example:
|
|
sound {
|
|
compatible = "atmel,sam9x5-wm8731-audio";
|
|
|
|
atmel,model = "wm8731 @ AT91SAM9X5EK";
|
|
|
|
atmel,audio-routing =
|
|
"Headphone Jack", "RHPOUT",
|
|
"Headphone Jack", "LHPOUT",
|
|
"LLINEIN", "Line In Jack",
|
|
"RLINEIN", "Line In Jack";
|
|
|
|
atmel,ssc-controller = <&ssc0>;
|
|
atmel,audio-codec = <&wm8731>;
|
|
};
|