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extcon: arizona: Support use of GPIO5 as an input to jack detection

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Some system designs provide an input on GPIO5 which in conjunction with
the jack detection feature indicates the presence of an accessory.
Support such systems, using the microphone clamp feature to minimise
wakeups of the processor.

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>
This commit is contained in:
Mark Brown 2013-01-11 08:55:39 +09:00 • committed by Chanwoo Choi
commit 92a49871b3
2 changed files with 61 additions and 18 deletions
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3
include/linux/mfd/arizona/pdata.h
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@ -96,6 +96,9 @@ struct arizona_pdata {
/** Pin state for GPIO pins */
int gpio_defaults[ARIZONA_MAX_GPIO];
/** GPIO5 is used for jack detection */
bool jd_gpio5;
/** GPIO for mic detection polarity */
int micd_pol_gpio;