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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-25 20:14:44 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-01 22:06:39 +0100
commit84eaa13616b6e7d001b7f7b909228087779b677b (patch)
treecdf7359a290cda17faa26078b22bdd37c5a733f6 /drivers/extcon
parent253b5374f08f3908cc380c5665470a5b7609be1c (diff)
extcon: arizona: Attempt more microphone measurements
In some pathological use cases users may insert an accessory very slowly causing multiple indeterminate measurements. Handle this by retrying many measurements before we give up and declare a headphone. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-arizona.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index b28927972128..4bb0e9ae405d 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -153,6 +153,8 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
{
struct arizona *arizona = info->arizona;
+ mode %= info->num_micd_modes;
+
if (arizona->pdata.micd_pol_gpio > 0)
gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio,
info->micd_modes[mode].gpio);
@@ -783,7 +785,7 @@ static irqreturn_t arizona_micdet(int irq, void *data)
* impedence then give up and report headphones.
*/
if (info->detecting && (val & 0x3f8)) {
- if (info->jack_flips >= info->micd_num_modes) {
+ if (info->jack_flips >= info->micd_num_modes * 10) {
dev_dbg(arizona->dev, "Detected HP/line\n");
arizona_identify_headphone(info);