From bf14ee5a460276a99ed35f9034bae9e74b01600f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 5 Feb 2013 20:20:17 +0000
Subject: [PATCH] extcon: arizona: Use MICDET for final microphone
identification
When using HPDET to identify the accessory still run MICDET before we
report a microphone in order to ensure that the accessory identified is
compatible with the MICDET detection ranges after having confirmed that
the device is not using a headphone.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
drivers/extcon/extcon-arizona.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index d9918421e80b..dc357a4051f6 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -56,6 +56,7 @@ struct arizona_extcon_info {
struct delayed_work hpdet_work;
bool hpdet_active;
+ bool hpdet_done;
int num_hpdet_res;
unsigned int hpdet_res[3];
@@ -394,7 +395,6 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading)
{
struct arizona *arizona = info->arizona;
int id_gpio = arizona->pdata.hpdet_id_gpio;
- int ret;
/*
* If we're using HPDET for accessory identification we need
@@ -463,13 +463,7 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading)
(id_gpio && info->hpdet_res[2] > 10)) {
dev_dbg(arizona->dev, "Detected mic\n");
info->mic = true;
- ret = extcon_set_cable_state_(&info->edev,
- ARIZONA_CABLE_MICROPHONE,
- true);
- if (ret != 0) {
- dev_err(arizona->dev,
- "Failed to report mic: %d\n", ret);
- }
+ info->detecting = true;
} else {
dev_dbg(arizona->dev, "Detected headphone\n");
}
@@ -586,6 +580,8 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
info->hpdet_active = false;
}
+ info->hpdet_done = true;
+
out:
mutex_unlock(&info->lock);
@@ -597,6 +593,9 @@ static void arizona_identify_headphone(struct arizona_extcon_info *info)
struct arizona *arizona = info->arizona;
int ret;
+ if (info->hpdet_done)
+ return;
+
dev_dbg(arizona->dev, "Starting HPDET\n");
/* Make sure we keep the device enabled during the measurement */
@@ -923,6 +922,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++)
info->hpdet_res[i] = 0;
info->mic = false;
+ info->hpdet_done = false;
for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
input_report_key(info->input,
--
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