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 | |
| parent | 67b22517d8e48a97e1d2ab10d095c538bbb2374c (diff) | |
| download | linux-c358e640a669b528b32af5442c92b856de623e1c.tar.bz2 | |
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>
| -rw-r--r-- | include/trace/events/asoc.h | 25 | ||||
| -rw-r--r-- | sound/soc/soc-cache.c | 10 |
2 files changed, 35 insertions, 0 deletions
diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h index 186e84db4b54..ae973d2e27a1 100644 --- a/include/trace/events/asoc.h +++ b/include/trace/events/asoc.h @@ -229,6 +229,31 @@ TRACE_EVENT(snd_soc_jack_notify, TP_printk("jack=%s %x", __get_str(name), (int)__entry->val) ); +TRACE_EVENT(snd_soc_cache_sync, + + TP_PROTO(struct snd_soc_codec *codec, const char *type, + const char *status), + + TP_ARGS(codec, type, status), + + TP_STRUCT__entry( + __string( name, codec->name ) + __string( status, status ) + __string( type, type ) + __field( int, id ) + ), + + TP_fast_assign( + __assign_str(name, codec->name); + __assign_str(status, status); + __assign_str(type, type); + __entry->id = codec->id; + ), + + TP_printk("codec=%s.%d type=%s status=%s", __get_str(name), + (int)__entry->id, __get_str(type), __get_str(status)) +); + #endif /* _TRACE_ASOC_H */ /* This part must be outside protection */ 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; } |