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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>
This commit is contained in:
Mark Brown 2011-01-26 20:53:50 +00:00
parent 6f8ab4ac29
commit aaee8ef146
2 changed files with 7 additions and 2 deletions
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4
include/sound/soc.h
View File

@ -493,14 +493,14 @@ struct snd_soc_codec {
struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
unsigned int active; unsigned int active;
unsigned int cache_bypass:1; /* Suppress access to the cache */ 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 suspended:1; /* Codec is in suspend PM state */
unsigned int probed:1; /* Codec has been probed */ unsigned int probed:1; /* Codec has been probed */
unsigned int ac97_registered:1; /* Codec has been AC97 registered */ unsigned int ac97_registered:1; /* Codec has been AC97 registered */
unsigned int ac97_created:1; /* Codec has been created by SoC */ unsigned int ac97_created:1; /* Codec has been created by SoC */
unsigned int sysfs_registered:1; /* codec has been sysfs registered */ unsigned int sysfs_registered:1; /* codec has been sysfs registered */
unsigned int cache_init:1; /* codec cache has been initialized */ 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 */ /* codec IO */
void *control_data; /* codec control (i2c/3wire) data */ void *control_data; /* codec control (i2c/3wire) data */

5
sound/soc/soc-core.c
View File

@ -235,6 +235,11 @@ static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
return; 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_reg = debugfs_create_file("codec_reg", 0644,
codec->debugfs_codec_root, codec->debugfs_codec_root,
codec, &codec_reg_fops); codec, &codec_reg_fops);