diff options
| author |   Lars-Peter Clausen <lars@metafoo.de> | 2014-11-09 17:01:03 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2014-11-10 19:08:27 +0000 |
| commit | 3e4199ef0105fb718b24cbcc837ad527fd60c880 (patch) | |
| tree | db829cd46dd0d15e10bd9912c689716bdcc89984 /sound/soc/codecs/wm8962.c | |
| parent | ASoC: wm8958: Move DSP firmware lock to driver level (diff) | |
| download | linux-dev-3e4199ef0105fb718b24cbcc837ad527fd60c880.tar.xz linux-dev-3e4199ef0105fb718b24cbcc837ad527fd60c880.zip | |
ASoC: wm8962: Move DSP enable lock to the driver level
The wm8962 uses the snd_soc_codec mutex to protect the wm8962_dsp2_ena_put()
function from concurrent execution. This patch moves that lock to the driver
level. This will allow us to eventually remove the snd_soc_codec mutex.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm8962.c')
| -rw-r--r-- | sound/soc/codecs/wm8962.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index 9077411e62ce..61ca4a7cb6ea 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -26,6 +26,7 @@ #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/workqueue.h> +#include <linux/mutex.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/pcm.h> @@ -67,6 +68,7 @@ struct wm8962_priv { int fll_fref; int fll_fout; + struct mutex dsp2_ena_lock; u16 dsp2_ena; struct delayed_work mic_work; @@ -1570,7 +1572,7 @@ static int wm8962_dsp2_ena_put(struct snd_kcontrol *kcontrol, int dsp2_running = snd_soc_read(codec, WM8962_DSP2_POWER_MANAGEMENT) & WM8962_DSP2_ENA; - mutex_lock(&codec->mutex); + mutex_lock(&wm8962->dsp2_ena_lock); if (ucontrol->value.integer.value[0]) wm8962->dsp2_ena |= 1 << shift; @@ -1590,7 +1592,7 @@ static int wm8962_dsp2_ena_put(struct snd_kcontrol *kcontrol, } out: - mutex_unlock(&codec->mutex); + mutex_unlock(&wm8962->dsp2_ena_lock); return ret; } @@ -3557,6 +3559,8 @@ static int wm8962_i2c_probe(struct i2c_client *i2c, if (wm8962 == NULL) return -ENOMEM; + mutex_init(&wm8962->dsp2_ena_lock); + i2c_set_clientdata(i2c, wm8962); INIT_DELAYED_WORK(&wm8962->mic_work, wm8962_mic_work); |