extcon: arizona: Support direct microphone measurement via HPDET

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With some GPIO control it is possible to detect microphones in a wider
range of configurations by directly measuring the microphone impedance
when the HPDET method cannot distinguish between the behaviour of the
two grounds. Allow a GPIO to be provided in platform data and use it to
implement this behaviour.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

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Mark Brown 2013-01-11 08:55:54 +09:00 • committed by Chanwoo Choi

parent dd235eea4e

commit 1eda6aa7ce

2 changed files with 48 additions and 5 deletions

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drivers/extcon/extcon-arizona.c

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