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extcon: arizona: Don't disable debounce for inverted jacks 

Whilst the jack is connected we disable the jack detection debounce to
ensure as quick as possible a detection of jack removal. However, it is
only safe to disable the jack debounce whilst the jack is connected if
using the micd clamp or the jack is not inverted. Otherwise spurious
interrupts might be generated when we re-enable the debounce.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Charles Keepax 2015-09-16 10:42:21 +01:00 committed by Chanwoo Choi
parent ff1cb0ed71
commit 6c20b93424
1 changed files with 5 additions and 3 deletions
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8
drivers/extcon/extcon-arizona.c
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@ -1118,9 +1118,11 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
msecs_to_jiffies(HPDET_DEBOUNCE));
}
regmap_update_bits(arizona->regmap,
ARIZONA_JACK_DETECT_DEBOUNCE,
ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0);
if (info->micd_clamp || !arizona->pdata.jd_invert)
regmap_update_bits(arizona->regmap,
ARIZONA_JACK_DETECT_DEBOUNCE,
ARIZONA_MICD_CLAMP_DB |
ARIZONA_JD1_DB, 0);
} else {
dev_dbg(arizona->dev, "Detected jack removal\n");