ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283

More thorough testing showed that these verbs were necessary to
improve quality of the internal mic. Patch originally from Realtek.

BugLink: https://bugs.launchpad.net/bugs/1231931
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 12 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 41f18f4b060b..0e303b99a47c 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3534,6 +3534,7 @@ enum {
         ALC269VB_FIXUP_ORDISSIMO_EVE2,
         ALC283_FIXUP_CHROME_BOOK,
         ALC282_FIXUP_ASUS_TX300,
+        ALC283_FIXUP_INT_MIC,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -3793,6 +3794,16 @@ static const struct hda_fixup alc269_fixups[] = {
                 .type = HDA_FIXUP_FUNC,
                 .v.func = alc282_fixup_asus_tx300,
         },
+        [ALC283_FIXUP_INT_MIC] = {
+                .type = HDA_FIXUP_VERBS,
+                .v.verbs = (const struct hda_verb[]) {
+                        {0x20, AC_VERB_SET_COEF_INDEX, 0x1a},
+                        {0x20, AC_VERB_SET_PROC_COEF, 0x0011},
+                        { }
+                },
+                .chained = true,
+                .chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+        },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -3877,7 +3888,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
         SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
         SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-        SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+        SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
         SND_PCI_QUIRK(0x17aa, 0x5026, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
         SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
         SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),