max8997_get_enable_register
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);