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ASoC: max98095: Move mutex to the driver level

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The max98095 uses the snd_soc_codec mutex to protect against concurrent
access in some of its control put handlers. Move this mutex to the driver
level so we can eventually remove the snd_soc_codec mutex.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-11-09 17:00:58 +01:00 committed by Mark Brown
parent 52ef6284a8
commit 210a5fae55
1 changed files with 8 additions and 4 deletions
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12
sound/soc/codecs/max98095.c
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@ -16,6 +16,7 @@
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/clk.h>
#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@ -57,6 +58,7 @@ struct max98095_priv {
unsigned int mic2pre;
struct snd_soc_jack *headphone_jack;
struct snd_soc_jack *mic_jack;
struct mutex lock;
};
static const struct reg_default max98095_reg_def[] = {
@ -1803,7 +1805,7 @@ static int max98095_put_eq_enum(struct snd_kcontrol *kcontrol,
regsave = snd_soc_read(codec, M98095_088_CFG_LEVEL);
snd_soc_update_bits(codec, M98095_088_CFG_LEVEL, regmask, 0);
mutex_lock(&codec->mutex);
mutex_lock(&max98095->lock);
snd_soc_update_bits(codec, M98095_00F_HOST_CFG, M98095_SEG, M98095_SEG);
m98095_eq_band(codec, channel, 0, coef_set->band1);
m98095_eq_band(codec, channel, 1, coef_set->band2);
@ -1811,7 +1813,7 @@ static int max98095_put_eq_enum(struct snd_kcontrol *kcontrol,
m98095_eq_band(codec, channel, 3, coef_set->band4);
m98095_eq_band(codec, channel, 4, coef_set->band5);
snd_soc_update_bits(codec, M98095_00F_HOST_CFG, M98095_SEG, 0);
mutex_unlock(&codec->mutex);
mutex_unlock(&max98095->lock);
/* Restore the original on/off state */
snd_soc_update_bits(codec, M98095_088_CFG_LEVEL, regmask, regsave);
@ -1957,12 +1959,12 @@ static int max98095_put_bq_enum(struct snd_kcontrol *kcontrol,
regsave = snd_soc_read(codec, M98095_088_CFG_LEVEL);
snd_soc_update_bits(codec, M98095_088_CFG_LEVEL, regmask, 0);
mutex_lock(&codec->mutex);
mutex_lock(&max98095->lock);
snd_soc_update_bits(codec, M98095_00F_HOST_CFG, M98095_SEG, M98095_SEG);
m98095_biquad_band(codec, channel, 0, coef_set->band1);
m98095_biquad_band(codec, channel, 1, coef_set->band2);
snd_soc_update_bits(codec, M98095_00F_HOST_CFG, M98095_SEG, 0);
mutex_unlock(&codec->mutex);
mutex_unlock(&max98095->lock);
/* Restore the original on/off state */
snd_soc_update_bits(codec, M98095_088_CFG_LEVEL, regmask, regsave);
@ -2395,6 +2397,8 @@ static int max98095_i2c_probe(struct i2c_client *i2c,
if (max98095 == NULL)
return -ENOMEM;
mutex_init(&max98095->lock);
max98095->regmap = devm_regmap_init_i2c(i2c, &max98095_regmap);
if (IS_ERR(max98095->regmap)) {
ret = PTR_ERR(max98095->regmap);