diff --git a/include/linux/input.h b/include/linux/input.h
index 558178b8060..77fc25365a3 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -850,6 +850,7 @@ struct input_keymap_entry {
 #define SW_HPHL_OVERCURRENT    0x0e  /* set = over current on left hph */
 #define SW_HPHR_OVERCURRENT    0x0f  /* set = over current on right hph */
 #define SW_UNSUPPORT_INSERT	0x10  /* set = unsupported device inserted */
+#define SW_MICROPHONE2_INSERT   0x11  /* set = inserted */
 #define SW_MAX			0x20
 #define SW_CNT			(SW_MAX+1)
 
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 8e8c1330fae..4a88c22434a 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -47,6 +47,9 @@ enum snd_jack_types {
 	SND_JACK_OC_HPHL	= 0x0000040,
 	SND_JACK_OC_HPHR	= 0x0000080,
 	SND_JACK_UNSUPPORTED	= 0x0000100,
+	SND_JACK_MICROPHONE2    = 0x0000200,
+	SND_JACK_ANC_HEADPHONE = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+				 SND_JACK_MICROPHONE2,
 	/* Kept separate from switches to facilitate implementation */
 	SND_JACK_BTN_0		= 0x4000000,
 	SND_JACK_BTN_1		= 0x2000000,
diff --git a/sound/core/jack.c b/sound/core/jack.c
index 9e2e085b78c..6e2dbdb39bd 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -35,6 +35,7 @@ static int jack_switch_types[] = {
 	SW_HPHL_OVERCURRENT,
 	SW_HPHR_OVERCURRENT,
 	SW_UNSUPPORT_INSERT,
+	SW_MICROPHONE2_INSERT,
 };
 
 static int snd_jack_dev_free(struct snd_device *device)