[PATCH v3 5/7] extcon: arizona: Add support for headphone detection on wm5110 rev D

Charles Keepax
2013-11-14T16:35:30Z

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>
---
drivers/extcon/extcon-arizona.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 1a48b10..f4fe2d1 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -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);
@@ -1146,6 +1148,16 @@ 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;
}
--
1.7.2.5