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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/extcon-arizona.c
parent253b5374f08f3908cc380c5665470a5b7609be1c (diff)
downloadop-kernel-dev-84eaa13616b6e7d001b7f7b909228087779b677b.zip
op-kernel-dev-84eaa13616b6e7d001b7f7b909228087779b677b.tar.gz
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/extcon-arizona.c')
-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 b289279..4bb0e9a 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);
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