2 files changed, 6 insertions, 0 deletions

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 0a7378f81acb..e29a6defefa0 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -423,6 +423,8 @@ static const struct snd_kcontrol_new rt5640_snd_controls[] = {
         SOC_DOUBLE_TLV("ADC Capture Volume", RT5640_ADC_DIG_VOL,
                         RT5640_L_VOL_SFT, RT5640_R_VOL_SFT,
                         127, 0, adc_vol_tlv),
+        SOC_DOUBLE("Mono ADC Capture Switch", RT5640_DUMMY1,
+                RT5640_M_MONO_ADC_L_SFT, RT5640_M_MONO_ADC_R_SFT, 1, 1),
         SOC_DOUBLE_TLV("Mono ADC Capture Volume", RT5640_ADC_DATA,
                         RT5640_L_VOL_SFT, RT5640_R_VOL_SFT,
                         127, 0, adc_vol_tlv),
diff --git a/sound/soc/codecs/rt5640.h b/sound/soc/codecs/rt5640.h
index 22c017c58d5b..b8a811732a52 100644
--- a/sound/soc/codecs/rt5640.h
+++ b/sound/soc/codecs/rt5640.h
@@ -1971,6 +1971,10 @@
 #define RT5640_ZCD_HP_EN                        (0x1 << 15)
 
 /* General Control 1 (0xfa) */
+#define RT5640_M_MONO_ADC_L                     (0x1 << 13)
+#define RT5640_M_MONO_ADC_L_SFT                 13
+#define RT5640_M_MONO_ADC_R                     (0x1 << 12)
+#define RT5640_M_MONO_ADC_R_SFT                 12
 #define RT5640_MCLK_DET                         (0x1 << 11)
 
 /* Codec Private Register definition */