diff options
| author | Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2011-01-21 15:29:02 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-01-21 18:30:51 +0000 |
| commit | c358e640a669b528b32af5442c92b856de623e1c (patch) | |
| tree | c40ceac6b635e6fdb00ee8eb4c5ab96044ca7503 /sound/soc/soc-cache.c | |
| parent | 67b22517d8e48a97e1d2ab10d095c538bbb2374c (diff) | |
| download | lwn-c358e640a669b528b32af5442c92b856de623e1c.tar.gz lwn-c358e640a669b528b32af5442c92b856de623e1c.zip | |
ASoC: soc-cache: Add trace event for snd_soc_cache_sync()
This patch makes it easy to see when the syncing process begins and
ends. You can also enable the snd_soc_reg_write tracepoint to see
which registers are being synced.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/soc-cache.c')
| -rw-r--r-- | sound/soc/soc-cache.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c index f83483963791..db66dc44add2 100644 --- a/sound/soc/soc-cache.c +++ b/sound/soc/soc-cache.c @@ -18,6 +18,8 @@ #include <linux/bitmap.h> #include <linux/rbtree.h> +#include <trace/events/asoc.h> + static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec, unsigned int reg) { @@ -1601,18 +1603,26 @@ EXPORT_SYMBOL_GPL(snd_soc_cache_write); int snd_soc_cache_sync(struct snd_soc_codec *codec) { int ret; + const char *name; if (!codec->cache_sync) { return 0; } + if (codec->cache_ops->name) + name = codec->cache_ops->name; + else + name = "unknown"; + if (codec->cache_ops && codec->cache_ops->sync) { if (codec->cache_ops->name) dev_dbg(codec->dev, "Syncing %s cache for %s codec\n", codec->cache_ops->name, codec->name); + trace_snd_soc_cache_sync(codec, name, "start"); ret = codec->cache_ops->sync(codec); if (!ret) codec->cache_sync = 0; + trace_snd_soc_cache_sync(codec, name, "end"); return ret; } |