diff options
| author |   Lars-Peter Clausen <lars@metafoo.de> | 2014-11-09 17:00:58 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2014-11-10 19:07:42 +0000 |
| commit | 210a5fae55c05174b8a5b571b6698626b3ae35d3 (patch) | |
| tree | db068bc9971ca528f8b25659ebcc5d42053c26f9 /sound/soc/codecs/max98095.c | |
| parent | ASoC: ab8500-codec: Move control lock to the driver level (diff) | |
| download | linux-dev-210a5fae55c05174b8a5b571b6698626b3ae35d3.tar.xz linux-dev-210a5fae55c05174b8a5b571b6698626b3ae35d3.zip | |
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 <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/max98095.c')
| -rw-r--r-- | sound/soc/codecs/max98095.c | 12 |
1 files 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 <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); |