ASoC: max98927: Updated volatile register list

Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index b5ee294..768e84d 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -495,6 +495,13 @@ static bool max98927_volatile_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case MAX98927_R0001_INT_RAW1 ... MAX98927_R0009_INT_FLAG3:
+	case MAX98927_R004C_MEAS_ADC_CH0_READ:
+	case MAX98927_R004D_MEAS_ADC_CH1_READ:
+	case MAX98927_R004E_MEAS_ADC_CH2_READ:
+	case MAX98927_R0051_BROWNOUT_STATUS:
+	case MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ:
+	case MAX98927_R01FF_REV_ID:
+	case MAX98927_R0100_SOFT_RESET:
 		return true;
 	default:
 		return false;