[PATCH 2/3] regcache: Introduce the index parsing API

[Xiubo Li]

Here introduces regcache_get_index() for regmap cache, which uses
the register stride order and bit rotation.

Signed-off-by: Xiubo Li 
---
 drivers/base/regmap/internal.h | 6 ++
 1 file changed, 6 insertions(+)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index d43784e..60699e6 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -270,4 +270,10 @@ static inline unsigned int regmap_get_offset(const struct 
regmap *map,
return index << map->reg_stride_order;
 }
 
+static inline unsigned int regcache_get_index(const struct regmap *map,
+   unsigned int reg)
+{
+   return reg >> map->reg_stride_order;
+}
+
 #endif
-- 
1.8.3.1



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[PATCH 2/3] regcache: Introduce the index parsing API

[Xiubo Li]

Here introduces regcache_get_index() for regmap cache, which uses
the register stride order and bit rotation.

Signed-off-by: Xiubo Li 
---
 drivers/base/regmap/internal.h | 6 ++
 1 file changed, 6 insertions(+)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index d43784e..60699e6 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -270,4 +270,10 @@ static inline unsigned int regmap_get_offset(const struct 
regmap *map,
return index << map->reg_stride_order;
 }
 
+static inline unsigned int regcache_get_index(const struct regmap *map,
+   unsigned int reg)
+{
+   return reg >> map->reg_stride_order;
+}
+
 #endif
-- 
1.8.3.1



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Please read the FAQ at  http://www.tux.org/lkml/