[ALSA] hda - Fix Thinkpad X300 digital mic

TP X300 digital mic requires additional init verbs with magic COEFs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index f486eb16a386..e0a605adde42 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -3740,6 +3740,9 @@ static struct hda_verb ad1984a_thinkpad_verbs[] = {
         {0x11, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_HP_EVENT},
         /* internal mic - dmic */
         {0x17, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN},
+        /* set magic COEFs for dmic */
+        {0x01, AC_VERB_SET_COEF_INDEX, 0x13f7},
+        {0x01, AC_VERB_SET_PROC_COEF, 0x08},
         { } /* end */
 };