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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>
28 lines
632 B
Plaintext
28 lines
632 B
Plaintext
WM8731 audio CODEC
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This device supports both I2C and SPI (configured with pin strapping
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on the board).
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Required properties:
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- compatible : "wlf,wm8731"
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- reg : the I2C address of the device for I2C, the chip select
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number for SPI.
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Example:
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codec: wm8731@1a {
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compatible = "wlf,wm8731";
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reg = <0x1a>;
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};
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Available audio endpoints for an audio-routing table:
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* LOUT: Left Channel Line Output
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* ROUT: Right Channel Line Output
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* LHPOUT: Left Channel Headphone Output
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* RHPOUT: Right Channel Headphone Output
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* LLINEIN: Left Channel Line Input
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* RLINEIN: Right Channel Line Input
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* MICIN: Microphone Input
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