1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index e2200f21c602..003c05349ae5 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -53,6 +53,12 @@ struct reg_default {
  * @reg_defaults: Power on reset values for registers (for use with
  *                register cache support).
  * @num_reg_defaults: Number of elements in reg_defaults.
+ *
+ * @read_flag_mask: Mask to be set in the top byte of the register when doing
+ *                  a read.
+ * @write_flag_mask: Mask to be set in the top byte of the register when doing
+ *                   a write. If both read_flag_mask and write_flag_mask are
+ *                   empty the regmap_bus default masks are used.
  */
 struct regmap_config {
         int reg_bits;
@@ -66,6 +72,9 @@ struct regmap_config {
         unsigned int max_register;
         struct reg_default *reg_defaults;
         int num_reg_defaults;
+
+        u8 read_flag_mask;
+        u8 write_flag_mask;
 };
 
 typedef int (*regmap_hw_write)(struct device *dev, const void *data,