diff --git a/sound/soc/codecs/sdm660_cdc/sdm660-regmap.c b/sound/soc/codecs/sdm660_cdc/sdm660-regmap.c
index fff1fdc..c9babac 100644
--- a/sound/soc/codecs/sdm660_cdc/sdm660-regmap.c
+++ b/sound/soc/codecs/sdm660_cdc/sdm660-regmap.c
@@ -452,8 +452,23 @@ bool msm89xx_cdc_core_readable_reg(struct device *dev, unsigned int reg)
 bool msm89xx_cdc_core_volatile_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
-	/* cache bypass for initial version */
-	default:
+	case MSM89XX_CDC_CORE_RX1_B1_CTL:
+	case MSM89XX_CDC_CORE_RX2_B1_CTL:
+	case MSM89XX_CDC_CORE_RX3_B1_CTL:
+	case MSM89XX_CDC_CORE_RX1_B6_CTL:
+	case MSM89XX_CDC_CORE_RX2_B6_CTL:
+	case MSM89XX_CDC_CORE_RX3_B6_CTL:
+	case MSM89XX_CDC_CORE_TX1_VOL_CTL_CFG:
+	case MSM89XX_CDC_CORE_TX2_VOL_CTL_CFG:
+	case MSM89XX_CDC_CORE_TX3_VOL_CTL_CFG:
+	case MSM89XX_CDC_CORE_TX4_VOL_CTL_CFG:
+	case MSM89XX_CDC_CORE_TX5_VOL_CTL_CFG:
+	case MSM89XX_CDC_CORE_IIR1_COEF_B1_CTL:
+	case MSM89XX_CDC_CORE_IIR2_COEF_B1_CTL:
+	case MSM89XX_CDC_CORE_CLK_MCLK_CTL:
+	case MSM89XX_CDC_CORE_CLK_PDM_CTL:
 		return true;
+	default:
+		return false;
 	}
 }