From 84eaa13616b6e7d001b7f7b909228087779b677b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 25 Jan 2013 20:14:44 +0800 Subject: [PATCH] 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 --- drivers/extcon/extcon-arizona.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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); -- 2.20.1