1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index fcafc5b2e651..606b83d75458 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -26,8 +26,8 @@ struct regmap_format {
         size_t val_bytes;
         void (*format_write)(struct regmap *map,
                              unsigned int reg, unsigned int val);
-        void (*format_reg)(void *buf, unsigned int reg);
-        void (*format_val)(void *buf, unsigned int val);
+        void (*format_reg)(void *buf, unsigned int reg, unsigned int shift);
+        void (*format_val)(void *buf, unsigned int val, unsigned int shift);
         unsigned int (*parse_val)(void *buf);
 };
 
@@ -52,6 +52,9 @@ struct regmap {
         u8 read_flag_mask;
         u8 write_flag_mask;
 
+        /* number of bits to (left) shift the reg value when formatting*/
+        int reg_shift;
+
         /* regcache specific members */
         const struct regcache_ops *cache_ops;
         enum regcache_type cache_type;