ASoC: Make cache status available via debugfs

Could just as well live in sysfs but sysfs doesn't have the simple
value export helpers debugfs does.

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

2 files changed, 7 insertions, 2 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7e8cf4f318a9..64856d656f15 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -493,14 +493,14 @@ struct snd_soc_codec {
         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
         unsigned int active;
         unsigned int cache_bypass:1; /* Suppress access to the cache */
-        unsigned int cache_only:1;  /* Suppress writes to hardware */
-        unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
         unsigned int suspended:1; /* Codec is in suspend PM state */
         unsigned int probed:1; /* Codec has been probed */
         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
         unsigned int ac97_created:1; /* Codec has been created by SoC */
         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
         unsigned int cache_init:1; /* codec cache has been initialized */
+        u32 cache_only;  /* Suppress writes to hardware */
+        u32 cache_sync; /* Cache needs to be synced to hardware */
 
         /* codec IO */
         void *control_data; /* codec control (i2c/3wire) data */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 5dffc7a469c0..8af47f7a8fcb 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -235,6 +235,11 @@ static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
                 return;
         }
 
+        debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
+                            &codec->cache_sync);
+        debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
+                            &codec->cache_only);
+
         codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
                                                  codec->debugfs_codec_root,
                                                  codec, &codec_reg_fops);