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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2013-11-14 16:18:25 +0000
committerChanwoo Choi <cw00.choi@samsung.com>2014-01-07 11:54:28 +0900
commit77438610ffd93462348346430d17470cd3ce7bbc (patch)
tree6480bc1e6ba79561867a89d5f4fe5cb5aab1fdf8 /drivers/extcon
parent9141461d81717ef94b7d38a4b3581114ac1307db (diff)
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>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-arizona.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 4487bdaf9b4..c20602f601e 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);
@@ -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;
}