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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
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Required properties:
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- compatible: "atmel,sam9x5-wm8731-audio"
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- atmel,model: The user-visible name of this sound complex.
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- atmel,ssc-controller: The phandle of the SSC controller
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- atmel,audio-codec: The phandle of the WM8731 audio codec
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- atmel,audio-routing: A list of the connections between audio components.
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Each entry is a pair of strings, the first being the connection's sink,
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the second being the connection's source.
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Available audio endpoints for the audio-routing table:
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Board connectors:
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* Headphone Jack
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* Line In Jack
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wm8731 pins:
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cf Documentation/devicetree/bindings/sound/wm8731.txt
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Example:
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sound {
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compatible = "atmel,sam9x5-wm8731-audio";
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atmel,model = "wm8731 @ AT91SAM9X5EK";
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atmel,audio-routing =
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"Headphone Jack", "RHPOUT",
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"Headphone Jack", "LHPOUT",
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"LLINEIN", "Line In Jack",
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"RLINEIN", "Line In Jack";
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atmel,ssc-controller = <&ssc0>;
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atmel,audio-codec = <&wm8731>;
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};
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