From 210a5fae55c05174b8a5b571b6698626b3ae35d3 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 9 Nov 2014 17:00:58 +0100 Subject: [PATCH] ASoC: max98095: Move mutex to the driver level 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 Signed-off-by: Mark Brown --- sound/soc/codecs/max98095.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c index 0ee6797d5083..01f3cc9c780f 100644 --- a/sound/soc/codecs/max98095.c +++ b/sound/soc/codecs/max98095.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -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); -- 2.20.1