1 files changed, 15 insertions, 3 deletions

diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
index 03645ce42063..52e7cb08434b 100644
--- a/sound/soc/codecs/si476x.c
+++ b/sound/soc/codecs/si476x.c
@@ -73,6 +73,7 @@ static const struct snd_soc_dapm_route si476x_dapm_routes[] = {
 static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai,
                                     unsigned int fmt)
 {
+        struct si476x_core *core = i2c_mfd_cell_to_core(codec_dai->dev);
         int err;
         u16 format = 0;
 
@@ -136,9 +137,14 @@ static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai,
                 return -EINVAL;
         }
 
+        si476x_core_lock(core);
+
         err = snd_soc_update_bits(codec_dai->codec, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
                                   SI476X_DIGITAL_IO_OUTPUT_FORMAT_MASK,
                                   format);
+
+        si476x_core_unlock(core);
+
         if (err < 0) {
                 dev_err(codec_dai->codec->dev, "Failed to set output format\n");
                 return err;
@@ -151,6 +157,7 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
                                   struct snd_pcm_hw_params *params,
                                   struct snd_soc_dai *dai)
 {
+        struct si476x_core *core = i2c_mfd_cell_to_core(dai->dev);
         int rate, width, err;
 
         rate = params_rate(params);
@@ -176,11 +183,13 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
                 return -EINVAL;
         }
 
+        si476x_core_lock(core);
+
         err = snd_soc_write(dai->codec, SI476X_DIGITAL_IO_OUTPUT_SAMPLE_RATE,
                             rate);
         if (err < 0) {
                 dev_err(dai->codec->dev, "Failed to set sample rate\n");
-                return err;
+                goto out;
         }
 
         err = snd_soc_update_bits(dai->codec, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
@@ -189,10 +198,13 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
                                   (width << SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT));
         if (err < 0) {
                 dev_err(dai->codec->dev, "Failed to set output width\n");
-                return err;
+                goto out;
         }
 
-        return 0;
+out:
+        si476x_core_unlock(core);
+
+        return err;
 }
 
 static int si476x_codec_probe(struct snd_soc_codec *codec)