diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-04 01:05:58 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-11 17:54:26 +0300 |
| commit | a8b1d34f3ee1bc139ac5fbe3f84f6d16c90136bb (patch) | |
| tree | d4efe677408e0ad8c1f32641650446205581513a /sound/soc | |
| parent | 68f89ad8c233a88b10404c5fd8a1109d12999962 (diff) | |
| download | linux-a8b1d34f3ee1bc139ac5fbe3f84f6d16c90136bb.tar.xz | |
ASoC: Add trace events for ASoC register read/write
The trace subsystem provides a convenient way of instrumenting the kernel
which can be left on all the time with extremely low impact on the system
unlike prints to the kernel log which can be very spammy. Begin adding
support for instrumenting ASoC via this interface by adding trace for the
register access primitives.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/soc-core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index c18ce1dc51b8..700a6d5b9721 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -39,6 +39,9 @@ #include <sound/soc-dapm.h> #include <sound/initval.h> +#define CREATE_TRACE_POINTS +#include <trace/events/asoc.h> + #define NAME_SIZE 32 static DEFINE_MUTEX(pcm_mutex); @@ -1914,6 +1917,7 @@ unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) ret = codec->driver->read(codec, reg); dev_dbg(codec->dev, "read %x => %x\n", reg, ret); + trace_snd_soc_reg_read(codec, reg, ret); return ret; } @@ -1923,6 +1927,7 @@ unsigned int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int val) { dev_dbg(codec->dev, "write %x = %x\n", reg, val); + trace_snd_soc_reg_write(codec, reg, val); return codec->driver->write(codec, reg, val); } EXPORT_SYMBOL_GPL(snd_soc_write); |