diff --git a/sound/soc/codecs/twl4030.h b/sound/soc/codecs/twl4030.h
index 09865d9..a2065d4 100644
--- a/sound/soc/codecs/twl4030.h
+++ b/sound/soc/codecs/twl4030.h
@@ -113,7 +113,16 @@
 #define TWL4030_CODECPDZ		0x02
 #define TWL4030_OPT_MODE		0x01
 
+/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */
+
+#define TWL4030_MICBIAS2_CTL		0x40
+#define TWL4030_MICBIAS1_CTL		0x20
+#define TWL4030_HSMICBIAS_EN		0x04
+#define TWL4030_MICBIAS2_EN		0x02
+#define TWL4030_MICBIAS1_EN		0x01
+
 /* ANAMICL (0x05) Fields */
+
 #define TWL4030_CNCL_OFFSET_START	0x80
 #define TWL4030_OFFSET_CNCL_SEL		0x60
 #define TWL4030_OFFSET_CNCL_SEL_ARX1	0x00
@@ -127,10 +136,17 @@
 #define TWL4030_MAINMIC_EN		0x01
 
 /* ANAMICR (0x06) Fields */
+
 #define TWL4030_MICAMPR_EN		0x10
 #define TWL4030_AUXR_EN			0x04
 #define TWL4030_SUBMIC_EN		0x01
 
+/* AVADC_CTL (0x07) Fields */
+
+#define TWL4030_ADCL_EN			0x08
+#define TWL4030_AVADC_CLK_PRIORITY	0x04
+#define TWL4030_ADCR_EN			0x02
+
 /* AUDIO_IF (0x0E) Fields */
 
 #define TWL4030_AIF_SLAVE_EN		0x80