1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index b7ef33f63392..2b27d18410aa 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -308,7 +308,8 @@ static const struct regmap_config pca953x_i2c_regmap = {
         .volatile_reg = pca953x_volatile_register,
 
         .cache_type = REGCACHE_RBTREE,
-        .max_register = 0x7f,
+        /* REVISIT: should be 0x7f but some 24 bit chips use REG_ADDR_AI */
+        .max_register = 0xff,
 };
 
 static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,