ASoC: Revert widget I/O locking for 3.4

The widget locking depends on some of the other locking changes which
are queued up for 3.5 not 3.4 so revert the locking changes and reapply
them in 3.5.

This reverts commit 66bf93212f19548f5ed221356b2d70189cc18254 and
96acc357bedad69fbc94d1b923a960af5a411c6f.

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

1 files changed, 6 insertions, 28 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 1ba2a71..dcd1160 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -206,23 +206,7 @@ static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val)
 	return -1;
 }
 
-static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
-{
-	if (w->codec && !w->codec->using_regmap)
-		mutex_lock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_lock(&w->platform->mutex);
-}
-
-static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
-{
-	if (w->codec && !w->codec->using_regmap)
-		mutex_unlock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_unlock(&w->platform->mutex);
-}
-
-static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
+static int soc_widget_update_bits(struct snd_soc_dapm_widget *w,
 	unsigned short reg, unsigned int mask, unsigned int value)
 {
 	bool change;
@@ -235,24 +219,18 @@ static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
 		if (ret != 0)
 			return ret;
 	} else {
-		soc_widget_lock(w);
 		ret = soc_widget_read(w, reg);
-		if (ret < 0) {
-			soc_widget_unlock(w);
+		if (ret < 0)
 			return ret;
-		}
 
 		old = ret;
 		new = (old & ~mask) | (value & mask);
 		change = old != new;
 		if (change) {
 			ret = soc_widget_write(w, reg, new);
-			if (ret < 0) {
-				soc_widget_unlock(w);
+			if (ret < 0)
 				return ret;
-			}
 		}
-		soc_widget_unlock(w);
 	}
 
 	return change;
@@ -869,7 +847,7 @@ int dapm_reg_event(struct snd_soc_dapm_widget *w,
 	else
 		val = w->off_val;
 
-	soc_widget_update_bits_locked(w, -(w->reg + 1),
+	soc_widget_update_bits(w, -(w->reg + 1),
 			    w->mask << w->shift, val << w->shift);
 
 	return 0;
@@ -1127,7 +1105,7 @@ static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm,
 			"pop test : Applying 0x%x/0x%x to %x in %dms\n",
 			value, mask, reg, card->pop_time);
 		pop_wait(card->pop_time);
-		soc_widget_update_bits_locked(w, reg, mask, value);
+		soc_widget_update_bits(w, reg, mask, value);
 	}
 
 	list_for_each_entry(w, pending, power_list) {
@@ -1257,7 +1235,7 @@ static void dapm_widget_update(struct snd_soc_dapm_context *dapm)
 			       w->name, ret);
 	}
 
-	ret = soc_widget_update_bits_locked(w, update->reg, update->mask,
+	ret = snd_soc_update_bits(w->codec, update->reg, update->mask,
 				  update->val);
 	if (ret < 0)
 		pr_err("%s DAPM update failed: %d\n", w->name, ret);