diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2013-11-14 16:18:25 +0000 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2014-01-07 11:54:28 +0900 |
| commit | 77438610ffd93462348346430d17470cd3ce7bbc (patch) | |
| tree | 6480bc1e6ba79561867a89d5f4fe5cb5aab1fdf8 /drivers/extcon | |
| parent | 9141461d81717ef94b7d38a4b3581114ac1307db (diff) | |
| download | lwn-77438610ffd93462348346430d17470cd3ce7bbc.tar.gz lwn-77438610ffd93462348346430d17470cd3ce7bbc.zip | |
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.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 4487bdaf9b43..c20602f601ee 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; } |