regmap: Add trace event for successful cache reads

Currently we only trace physical reads, there's no instrumentation if
the read is satisfied from cache.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/trace/events/regmap.h b/include/trace/events/regmap.h
index 1e3193b8fcc8..12fbf43524e9 100644
--- a/include/trace/events/regmap.h
+++ b/include/trace/events/regmap.h
@@ -55,6 +55,15 @@ DEFINE_EVENT(regmap_reg, regmap_reg_read,
 
 );
 
+DEFINE_EVENT(regmap_reg, regmap_reg_read_cache,
+
+        TP_PROTO(struct device *dev, unsigned int reg,
+                 unsigned int val),
+
+        TP_ARGS(dev, reg, val)
+
+);
+
 DECLARE_EVENT_CLASS(regmap_block,
 
         TP_PROTO(struct device *dev, unsigned int reg, int count),