Messages in this thread Patch in this message | | | From | Xiubo Li <> | Subject | [PATCHv2 2/3] regcache: Introduce the index parsing API by stride order | Date | Mon, 4 Jan 2016 18:00:34 +0800 |
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Here introduces regcache_get_index_by_order() for regmap cache, which uses the register stride order and bit rotation, to improve the performance.
Signed-off-by: Xiubo Li <lixiubo@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 c22b04b..5c79526 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -273,4 +273,10 @@ static inline unsigned int regmap_get_offset(const struct regmap *map, return index * map->reg_stride; } +static inline unsigned int regcache_get_index_by_order(const struct regmap *map, + unsigned int reg) +{ + return reg >> map->reg_stride_order; +} + #endif -- 1.8.3.1
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