ASoC: dapm: Only lock CODEC for I/O if not using regmap

If we do use regmap then regmap will take care of things for us. We
actually already have this check at a higher level for the current
users but this makes sure we do the right thing in the future too if
we need to.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

sound/soc/soc-dapm.c

@@ -208,7 +208,7 @@ static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val)
 
 static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
 {
-	if (w->codec)
+	if (w->codec && !w->codec->using_regmap)
 		mutex_lock(&w->codec->mutex);
 	else if (w->platform)
 		mutex_lock(&w->platform->mutex);
@@ -216,7 +216,7 @@ static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
 
 static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
 {
-	if (w->codec)
+	if (w->codec && !w->codec->using_regmap)
 		mutex_unlock(&w->codec->mutex);
 	else if (w->platform)
 		mutex_unlock(&w->platform->mutex);