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Code

ASoC: ams-delta: Update locking around use of DAPM pin API

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The pin updates in this driver look like they are intended to be done
atomically, update to do so. It looks like these were originally locked
with the CODEC mutex and not updated since the patch "ASoC: dapm: Use
DAPM mutex for DAPM ops instead of codec mutex", so remove the original
CODEC mutex locking as well.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Charles Keepax 2014-02-18 15:22:22 +00:00 committed by Mark Brown
parent 121df681da
commit 03510ca07a
1 changed files with 27 additions and 20 deletions
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47
sound/soc/omap/ams-delta.c
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@ -106,57 +106,59 @@ static int ams_delta_set_audio_mode(struct snd_kcontrol *kcontrol,
if (ucontrol->value.enumerated.item[0] >= control->max)
return -EINVAL;
mutex_lock(&codec->mutex);
snd_soc_dapm_mutex_lock(dapm);
/* Translate selection to bitmap */
pins = ams_delta_audio_mode_pins[ucontrol->value.enumerated.item[0]];
/* Setup pins after corresponding bits if changed */
pin = !!(pins & (1 << AMS_DELTA_MOUTHPIECE));
if (pin != snd_soc_dapm_get_pin_status(dapm, "Mouthpiece")) {
changed = 1;
if (pin)
snd_soc_dapm_enable_pin(dapm, "Mouthpiece");
snd_soc_dapm_enable_pin_unlocked(dapm, "Mouthpiece");
else
snd_soc_dapm_disable_pin(dapm, "Mouthpiece");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mouthpiece");
}
pin = !!(pins & (1 << AMS_DELTA_EARPIECE));
if (pin != snd_soc_dapm_get_pin_status(dapm, "Earpiece")) {
changed = 1;
if (pin)
snd_soc_dapm_enable_pin(dapm, "Earpiece");
snd_soc_dapm_enable_pin_unlocked(dapm, "Earpiece");
else
snd_soc_dapm_disable_pin(dapm, "Earpiece");
snd_soc_dapm_disable_pin_unlocked(dapm, "Earpiece");
}
pin = !!(pins & (1 << AMS_DELTA_MICROPHONE));
if (pin != snd_soc_dapm_get_pin_status(dapm, "Microphone")) {
changed = 1;
if (pin)
snd_soc_dapm_enable_pin(dapm, "Microphone");
snd_soc_dapm_enable_pin_unlocked(dapm, "Microphone");
else
snd_soc_dapm_disable_pin(dapm, "Microphone");
snd_soc_dapm_disable_pin_unlocked(dapm, "Microphone");
}
pin = !!(pins & (1 << AMS_DELTA_SPEAKER));
if (pin != snd_soc_dapm_get_pin_status(dapm, "Speaker")) {
changed = 1;
if (pin)
snd_soc_dapm_enable_pin(dapm, "Speaker");
snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
else
snd_soc_dapm_disable_pin(dapm, "Speaker");
snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
}
pin = !!(pins & (1 << AMS_DELTA_AGC));
if (pin != ams_delta_audio_agc) {
ams_delta_audio_agc = pin;
changed = 1;
if (pin)
snd_soc_dapm_enable_pin(dapm, "AGCIN");
snd_soc_dapm_enable_pin_unlocked(dapm, "AGCIN");
else
snd_soc_dapm_disable_pin(dapm, "AGCIN");
snd_soc_dapm_disable_pin_unlocked(dapm, "AGCIN");
}
if (changed)
snd_soc_dapm_sync(dapm);
mutex_unlock(&codec->mutex);
if (changed)
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
return changed;
}
@ -315,12 +317,17 @@ static void cx81801_close(struct tty_struct *tty)
v253_ops.close(tty);
/* Revert back to default audio input/output constellation */
snd_soc_dapm_disable_pin(dapm, "Mouthpiece");
snd_soc_dapm_enable_pin(dapm, "Earpiece");
snd_soc_dapm_enable_pin(dapm, "Microphone");
snd_soc_dapm_disable_pin(dapm, "Speaker");
snd_soc_dapm_disable_pin(dapm, "AGCIN");
snd_soc_dapm_sync(dapm);
snd_soc_dapm_mutex_lock(dapm);
snd_soc_dapm_disable_pin_unlocked(dapm, "Mouthpiece");
snd_soc_dapm_enable_pin_unlocked(dapm, "Earpiece");
snd_soc_dapm_enable_pin_unlocked(dapm, "Microphone");
snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
snd_soc_dapm_disable_pin_unlocked(dapm, "AGCIN");
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(codec);
}
/* Line discipline .hangup() */