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>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7e8cf4f..64856d6 100644 (file)
--- 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 5dffc7a..8af47f7 100644 (file)
--- 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);