ASoC: Add WM8958 microphone detection support

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The WM8958 contains an advanced accessory detection feature which allows
detection of up to seven different impedence levels on the microphone
bias output, including detection of video outputs. Since some of the
more involved accessory interfaces may involve noticable interactions
with external components a simple detection scheme is provided by
default with the option to provide custom handling of accessory detect.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

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Mark Brown 2010-11-26 15:21:09 +00:00

parent d6addcc9d8

commit 821edd2fb5

3 changed files with 197 additions and 0 deletions

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43

include/linux/mfd/wm8994/registers.h

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150

sound/soc/codecs/wm8994.c

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4

sound/soc/codecs/wm8994.h

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