ASoC: pxa: Remove superfluous locking

The locking here was added in commit 71a2956 ("ASoC: Lock the CODEC in PXA
external jack controls") to protect the DAPM changes that are made inside of
${board}_ext_control() against concurrent updates. The ASoC core was updated in
commit a73fb2d ("ASoC: dapm: Use DAPM mutex for DAPM ops instead of codec
mutex") to use a card wide lock rather the CODEC mutex to protect DAPM
operations. We now have proper locking inside ${board}_ext_control() itself, so
taking the CODEC lock can be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/pxa/corgi.c

@@ -99,13 +99,9 @@ static int corgi_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	corgi_ext_control(&codec->dapm);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/magician.c

@@ -73,13 +73,9 @@ static int magician_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	magician_ext_control(codec);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/poodle.c

@@ -76,13 +76,9 @@ static int poodle_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	poodle_ext_control(&codec->dapm);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/spitz.c

@@ -108,13 +108,9 @@ static int spitz_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	spitz_ext_control(&codec->dapm);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/tosa.c

@@ -80,13 +80,9 @@ static int tosa_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	tosa_ext_control(codec);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }