mfd: rc5t583: Set regmap config reg counts properly

Regmap config max_register field should contain number of
device last register, however num_reg_defaults_raw field
should be set to register count instead
(usually one register more than max_register).

rc5t583 driver had both of these fields set to the same value,
fix this by introducing separate defines for max register
number and total count of registers.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

2 files changed, 5 insertions, 4 deletions

diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c
index e10f02f5d551..fc2b2d93f354 100644
--- a/drivers/mfd/rc5t583.c
+++ b/drivers/mfd/rc5t583.c
@@ -241,8 +241,8 @@ static const struct regmap_config rc5t583_regmap_config = {
         .reg_bits = 8,
         .val_bits = 8,
         .volatile_reg = volatile_reg,
-        .max_register = RC5T583_MAX_REGS,
-        .num_reg_defaults_raw = RC5T583_MAX_REGS,
+        .max_register = RC5T583_MAX_REG,
+        .num_reg_defaults_raw = RC5T583_NUM_REGS,
         .cache_type = REGCACHE_RBTREE,
 };
 
diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h
index fd413ccab915..8d0a392e0a7f 100644
--- a/include/linux/mfd/rc5t583.h
+++ b/include/linux/mfd/rc5t583.h
@@ -28,8 +28,6 @@
 #include <linux/types.h>
 #include <linux/regmap.h>
 
-#define RC5T583_MAX_REGS                0xF8
-
 /* Maximum number of main interrupts */
 #define MAX_MAIN_INTERRUPT              5
 #define RC5T583_MAX_GPEDGE_REG          2
@@ -169,6 +167,9 @@
 #define RC5T583_RTC_AY_MONTH 0xF3
 #define RC5T583_RTC_AY_YEAR     0xF4
 
+#define RC5T583_MAX_REG         0xF7
+#define RC5T583_NUM_REGS        (RC5T583_MAX_REG + 1)
+
 /* RICOH_RC5T583 IRQ definitions */
 enum {
         RC5T583_IRQ_ONKEY,