1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c
index 1a8ec3b2b601..4735318f4268 100644
--- a/drivers/base/regmap/regmap-i2c.c
+++ b/drivers/base/regmap/regmap-i2c.c
@@ -259,7 +259,7 @@ static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c,
 {
         if (i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C))
                 return &regmap_i2c;
-        else if (config->reg_bits == 8 &&
+        else if (config->val_bits == 8 && config->reg_bits == 8 &&
                  i2c_check_functionality(i2c->adapter,
                                          I2C_FUNC_SMBUS_I2C_BLOCK))
                 return &regmap_i2c_smbus_i2c_block;