diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 52453c46b4090c5e8afc59a84119162dd7fa8c36..9d509ede22c71120042c2a4d276c2d59e57c60ad 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -95,6 +95,8 @@
 #define SUN4I_CODEC_ADC_ACTL_PREG1EN			(29)
 #define SUN4I_CODEC_ADC_ACTL_PREG2EN			(28)
 #define SUN4I_CODEC_ADC_ACTL_VMICEN			(27)
+#define SUN4I_CODEC_ADC_ACTL_PREG1			(25)
+#define SUN4I_CODEC_ADC_ACTL_PREG2			(23)
 #define SUN4I_CODEC_ADC_ACTL_VADCG			(20)
 #define SUN4I_CODEC_ADC_ACTL_ADCIS			(17)
 #define SUN4I_CODEC_ADC_ACTL_PA_EN			(4)
@@ -111,6 +113,9 @@
 /* Microphone controls (sun7i only) */
 #define SUN7I_CODEC_AC_MIC_PHONE_CAL		(0x3c)
 
+#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1		(29)
+#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2		(26)
+
 /*
  * sun6i specific registers
  *
@@ -676,6 +681,12 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mute =
 static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
 static DECLARE_TLV_DB_SCALE(sun4i_codec_micin_loopback_gain_scale, -450, 150,
 			    0);
+static DECLARE_TLV_DB_RANGE(sun4i_codec_micin_preamp_gain_scale,
+			    0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
+			    1, 7, TLV_DB_SCALE_ITEM(3500, 300, 0));
+static DECLARE_TLV_DB_RANGE(sun7i_codec_micin_preamp_gain_scale,
+			    0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
+			    1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0));
 
 static const struct snd_kcontrol_new sun4i_codec_controls[] = {
 	SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
@@ -684,6 +695,12 @@ static const struct snd_kcontrol_new sun4i_codec_controls[] = {
 	SOC_SINGLE_TLV("Mic Playback Volume", SUN4I_CODEC_DAC_ACTL,
 		       SUN4I_CODEC_DAC_ACTL_MICG, 7, 0,
 		       sun4i_codec_micin_loopback_gain_scale),
+	SOC_SINGLE_TLV("Mic1 Boost Volume", SUN4I_CODEC_ADC_ACTL,
+		       SUN4I_CODEC_ADC_ACTL_PREG1, 3, 0,
+		       sun4i_codec_micin_preamp_gain_scale),
+	SOC_SINGLE_TLV("Mic2 Boost Volume", SUN4I_CODEC_ADC_ACTL,
+		       SUN4I_CODEC_ADC_ACTL_PREG2, 3, 0,
+		       sun4i_codec_micin_preamp_gain_scale),
 };
 
 static const struct snd_kcontrol_new sun7i_codec_controls[] = {
@@ -693,6 +710,12 @@ static const struct snd_kcontrol_new sun7i_codec_controls[] = {
 	SOC_SINGLE_TLV("Mic Playback Volume", SUN4I_CODEC_DAC_ACTL,
 		       SUN4I_CODEC_DAC_ACTL_MICG, 7, 0,
 		       sun4i_codec_micin_loopback_gain_scale),
+	SOC_SINGLE_TLV("Mic1 Boost Volume", SUN7I_CODEC_AC_MIC_PHONE_CAL,
+		       SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1, 7, 0,
+		       sun7i_codec_micin_preamp_gain_scale),
+	SOC_SINGLE_TLV("Mic2 Boost Volume", SUN7I_CODEC_AC_MIC_PHONE_CAL,
+		       SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2, 7, 0,
+		       sun7i_codec_micin_preamp_gain_scale),
 };
 
 static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {