ASoC: codecs: tas5720: add TAS5722 specific volume control

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The TAS5722 supports modifying volume in 0.25dB steps (as opposed to
0.5dB steps on the TAS5720). Introduce a custom mixer control that
allows taking advantage of this finer output volume granularity.

Also add custom getters/setters for access as the TAS5722 digital volume
controls are split over two registers.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Andreas Dannenberg 2018-08-31 09:47:13 -05:00 • committed by Mark Brown

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sound/soc/codecs/tas5720.c

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