ASoC: Add debug output tracing all cache register writes

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

1 files changed, 12 insertions, 0 deletions

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 9dfe9a58a314..472af38188c1 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -44,6 +44,8 @@ static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         ret = codec->hw_write(codec->control_data, data, 2);
         if (ret == 2)
                 return 0;
@@ -112,6 +114,8 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         ret = codec->hw_write(codec->control_data, data, 2);
         if (ret == 2)
                 return 0;
@@ -171,6 +175,8 @@ static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         if (codec->hw_write(codec->control_data, data, 2) == 2)
                 return 0;
         else
@@ -205,6 +211,8 @@ static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         if (codec->hw_write(codec->control_data, data, 3) == 3)
                 return 0;
         else
@@ -362,6 +370,8 @@ static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         ret = codec->hw_write(codec->control_data, data, 3);
         if (ret == 3)
                 return 0;
@@ -472,6 +482,8 @@ static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,
                 return 0;
         }
 
+        dev_dbg(codec->dev, "0x%x = 0x%x\n", reg, value);
+
         ret = codec->hw_write(codec->control_data, data, 4);
         if (ret == 4)
                 return 0;