diff options
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-arizona.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 2f0bd4938fc..9e4bffe610b 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -39,6 +39,8 @@ #define ARIZONA_ACCDET_MODE_HPL 1 #define ARIZONA_ACCDET_MODE_HPR 2 +#define HPDET_DEBOUNCE 250 + struct arizona_extcon_info { struct device *dev; struct arizona *arizona; @@ -46,6 +48,8 @@ struct arizona_extcon_info { struct regulator *micvdd; struct input_dev *input; + u16 last_jackdet; + int micd_mode; const struct arizona_micd_config *micd_modes; int micd_num_modes; @@ -871,11 +875,12 @@ static irqreturn_t arizona_jackdet(int irq, void *data) struct arizona_extcon_info *info = data; struct arizona *arizona = info->arizona; unsigned int val, present, mask; + bool cancelled; int ret, i; - pm_runtime_get_sync(info->dev); + cancelled = cancel_delayed_work_sync(&info->hpdet_work); - cancel_delayed_work_sync(&info->hpdet_work); + pm_runtime_get_sync(info->dev); mutex_lock(&info->lock); @@ -896,7 +901,18 @@ static irqreturn_t arizona_jackdet(int irq, void *data) return IRQ_NONE; } - if ((val & mask) == present) { + val &= mask; + if (val == info->last_jackdet) { + dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); + if (cancelled) + schedule_delayed_work(&info->hpdet_work, + msecs_to_jiffies(HPDET_DEBOUNCE)); + + goto out; + } + info->last_jackdet = val; + + if (info->last_jackdet == present) { dev_dbg(arizona->dev, "Detected jack\n"); ret = extcon_set_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL, true); @@ -913,7 +929,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data) arizona_start_mic(info); } else { schedule_delayed_work(&info->hpdet_work, - msecs_to_jiffies(250)); + msecs_to_jiffies(HPDET_DEBOUNCE)); } regmap_update_bits(arizona->regmap, @@ -953,6 +969,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data) ARIZONA_JD1_FALL_TRIG_STS | ARIZONA_JD1_RISE_TRIG_STS); +out: mutex_unlock(&info->lock); pm_runtime_mark_last_busy(info->dev); @@ -1012,6 +1029,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) mutex_init(&info->lock); info->arizona = arizona; info->dev = &pdev->dev; + info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); platform_set_drvdata(pdev, info); |