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>
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 4487bda..c20602f 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -435,6 +435,8 @@
}
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 @@
break;
}
break;
+ case WM5110:
+ switch (arizona->rev) {
+ case 0 ... 2:
+ break;
+ default:
+ info->micd_clamp = true;
+ info->hpdet_ip = 2;
+ break;
+ }
+ break;
default:
break;
}