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extcon: arizona: Add support for headphone detection on wm5110 rev D 

wm5110 rev D is the first chip to use headphone detection IP 2, specify
such and make a small correction as the impedance value is actually read
in 0.5 ohm increments now.

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 2013-11-14 16:18:25 +00:00 committed by Chanwoo Choi
parent 9141461d81
commit 77438610ff
1 changed files with 12 additions and 0 deletions
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12
drivers/extcon/extcon-arizona.c
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@ -435,6 +435,8 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info)
}
val &= ARIZONA_HP_LVL_B_MASK;
/* Convert to ohms, the value is in 0.5 ohm increments */
val /= 2;
regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
&range);
@ -1147,6 +1149,16 @@ static int arizona_extcon_probe(struct platform_device *pdev)
break;
}
break;
case WM5110:
switch (arizona->rev) {
case 0 ... 2:
break;
default:
info->micd_clamp = true;
info->hpdet_ip = 2;
break;
}
break;
default:
break;
}