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ASoC: wm8962: Move DSP enable lock to the driver level

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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>
This commit is contained in:
Lars-Peter Clausen 2014-11-09 17:01:03 +01:00 committed by Mark Brown
parent fabfad2f8b
commit 3e4199ef01
1 changed files with 6 additions and 2 deletions
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8
sound/soc/codecs/wm8962.c
View file

@ -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);