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Commit c358e640 authored by Dimitris Papastamos's avatar Dimitris Papastamos Committed by Mark Brown
Browse files

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: default avatarDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 67b22517

include/trace/events/asoc.h

+25 −0
Original line number Original line Diff line number Diff line
@@ -229,6 +229,31 @@ TRACE_EVENT(snd_soc_jack_notify, 
	TP_printk("jack=%s %x", __get_str(name), (int)__entry->val)

	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 */

#endif /* _TRACE_ASOC_H */





/* This part must be outside protection */

/* This part must be outside protection */

sound/soc/soc-cache.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -18,6 +18,8 @@ 
#include <linux/bitmap.h>

#include <linux/bitmap.h>

#include <linux/rbtree.h>

#include <linux/rbtree.h>





#include <trace/events/asoc.h>



static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,

static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,

				     unsigned int reg)

				     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 snd_soc_cache_sync(struct snd_soc_codec *codec)

{

{

	int ret;

	int ret;

	const char *name;





	if (!codec->cache_sync) {

	if (!codec->cache_sync) {

		return 0;

		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 && codec->cache_ops->sync) {

		if (codec->cache_ops->name)

		if (codec->cache_ops->name)

			dev_dbg(codec->dev, "Syncing %s cache for %s codec\n",

			dev_dbg(codec->dev, "Syncing %s cache for %s codec\n",

				codec->cache_ops->name, codec->name);

				codec->cache_ops->name, codec->name);

		trace_snd_soc_cache_sync(codec, name, "start");

		ret = codec->cache_ops->sync(codec);

		ret = codec->cache_ops->sync(codec);

		if (!ret)

		if (!ret)

			codec->cache_sync = 0;

			codec->cache_sync = 0;

		trace_snd_soc_cache_sync(codec, name, "end");

		return ret;

		return ret;

	}

	}