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 <[email protected]> --- 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 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); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
