From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 10 Jan 2013 23:55:54 +0000 (+0900)
Subject: extcon: arizona: Support direct microphone measurement via HPDET
X-Git-Tag: v3.9-rc1~124^2~113^2~1
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1eda6aa7ce101b59dfd91abef2c8b0e51e96e199;p=pandora-kernel.git

extcon: arizona: Support direct microphone measurement via HPDET

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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