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regmap: Add tracepoints for cache only and cache bypass

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Useful for figuring out where the hardware interaction went or came from.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2012-02-23 22:02:57 +00:00
parent a3c3774176
commit 5d5b7d4f80
2 changed files with 38 additions and 0 deletions
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2
drivers/base/regmap/regcache.c
View file

@ -313,6 +313,7 @@ void regcache_cache_only(struct regmap *map, bool enable)
mutex_lock(&map->lock);
WARN_ON(map->cache_bypass && enable);
map->cache_only = enable;
trace_regmap_cache_only(map->dev, enable);
mutex_unlock(&map->lock);
}
EXPORT_SYMBOL_GPL(regcache_cache_only);
@ -350,6 +351,7 @@ void regcache_cache_bypass(struct regmap *map, bool enable)
mutex_lock(&map->lock);
WARN_ON(map->cache_only && enable);
map->cache_bypass = enable;
trace_regmap_cache_bypass(map->dev, enable);
mutex_unlock(&map->lock);
}
EXPORT_SYMBOL_GPL(regcache_cache_bypass);

36
include/trace/events/regmap.h
View file

@ -139,6 +139,42 @@ TRACE_EVENT(regcache_sync,
__get_str(type), __get_str(status))
);
DECLARE_EVENT_CLASS(regmap_bool,
TP_PROTO(struct device *dev, bool flag),
TP_ARGS(dev, flag),
TP_STRUCT__entry(
__string( name, dev_name(dev) )
__field( int, flag )
),
TP_fast_assign(
__assign_str(name, dev_name(dev));
__entry->flag = flag;
),
TP_printk("%s flag=%d", __get_str(name),
(int)__entry->flag)
);
DEFINE_EVENT(regmap_bool, regmap_cache_only,
TP_PROTO(struct device *dev, bool flag),
TP_ARGS(dev, flag)
);
DEFINE_EVENT(regmap_bool, regmap_cache_bypass,
TP_PROTO(struct device *dev, bool flag),
TP_ARGS(dev, flag)
);
#endif /* _TRACE_REGMAP_H */
/* This part must be outside protection */