@@ -440,6 +440,7 @@ static bool rt5645_volatile_register(struct device *dev, unsigned int reg)
switch (reg) {
case RT5645_RESET:
+ case RT5645_PRIV_INDEX:
case RT5645_PRIV_DATA:
case RT5645_IN1_CTRL1:
case RT5645_IN1_CTRL2: