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authorCharles Keepax <ckeepax@opensource.cirrus.com>2019-04-04 19:33:56 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2019-04-12 03:38:40 +0300
commit00053de52231117ddc154042549f2256183ffb86 (patch)
treebbf4462a476ef2e24b78d87c98cfd8f08521f3c0 /drivers/extcon
parentfa3c098c2d52a268f6372fa053932e11f50cecb1 (diff)
downloadlinux-00053de52231117ddc154042549f2256183ffb86.tar.xz
extcon: arizona: Disable mic detect if running when driver is removed
Microphone detection provides the button detection features on the Arizona CODECs as such it will be running if the jack is currently inserted. If the driver is unbound whilst the jack is still inserted this will cause warnings from the regulator framework as the MICVDD regulator is put but was never disabled. Correct this by disabling microphone detection on driver removal and if the microphone detection was running disable the regulator and put the runtime reference that was currently held. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-arizona.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index da0e9bc4262f..9327479c719c 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1726,6 +1726,16 @@ static int arizona_extcon_remove(struct platform_device *pdev)
struct arizona_extcon_info *info = platform_get_drvdata(pdev);
struct arizona *arizona = info->arizona;
int jack_irq_rise, jack_irq_fall;
+ bool change;
+
+ regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA, 0,
+ &change);
+
+ if (change) {
+ regulator_disable(info->micvdd);
+ pm_runtime_put(info->dev);
+ }
gpiod_put(info->micd_pol_gpio);