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authorMark Brown <broonie@opensource.wolfsonmicro.com>2009-08-21 16:38:13 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-08-21 17:17:59 +0100
commit79fb9387f88b6b44bbc46e19cae26d2c9fe3bb6a (patch)
treee291bf379268358a1a5a6d9e32a33cabedf6d0d2 /include/sound/soc.h
parentb8e583f6012d618fb93bb38a302b63c3c6d2bfbc (diff)
ASoC: Add DAPM widget power decision debugfs files
Currently when built with DEBUG DAPM will dump information about the power state decisions it is taking for each widget to dmesg. This isn't an ideal way of getting the information - it requires a kernel build to turn it on and off and for large hub CODECs the volume of information is so large as to be illegible. When the output goes to the console it can also cause a noticable impact on performance simply to print it out. Improve the situation by adding a dapm directory to our debugfs tree containing a file per widget with the same information in it. This still requires a decision to build with debugfs support but is easier to navigate and much less intrusive. In addition to the previously displayed information active streams are also shown in these files. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound/soc.h')
-rw-r--r--include/sound/soc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index dbb1702688cd..0758a1b3ca44 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -416,6 +416,7 @@ struct snd_soc_codec {
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_reg;
struct dentry *debugfs_pop_time;
+ struct dentry *debugfs_dapm;
#endif
};