ASoC: omap: rx51: Update locking around use of DAPM pin API

The pin updates in this driver look like they are intended to be done
atomically, update to do so.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 13 insertions, 9 deletions

diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c
index 611179c3bca4..7fb3d4b10370 100644
--- a/sound/soc/omap/rx51.c
+++ b/sound/soc/omap/rx51.c
@@ -74,26 +74,30 @@ static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
                 break;
         }
 
+        snd_soc_dapm_mutex_lock(dapm);
+
         if (rx51_spk_func)
-                snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+                snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
         else
-                snd_soc_dapm_disable_pin(dapm, "Ext Spk");
+                snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
         if (rx51_dmic_func)
-                snd_soc_dapm_enable_pin(dapm, "DMic");
+                snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
         else
-                snd_soc_dapm_disable_pin(dapm, "DMic");
+                snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
         if (hp)
-                snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+                snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
         else
-                snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
+                snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
         if (hs)
-                snd_soc_dapm_enable_pin(dapm, "HS Mic");
+                snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
         else
-                snd_soc_dapm_disable_pin(dapm, "HS Mic");
+                snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
 
         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
 
-        snd_soc_dapm_sync(dapm);
+        snd_soc_dapm_sync_unlocked(dapm);
+
+        snd_soc_dapm_mutex_unlock(dapm);
 }
 
 static int rx51_startup(struct snd_pcm_substream *substream)