Here introduces regcache_get_index() for regmap cache, which uses
the register stride order and bit rotation.
Signed-off-by: Xiubo Li <lixi...@cmss.chinamobile.com>
---
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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