ALSA: hda - Add quirk for ASUS G751 laptop

ASUS G751 requires the extra COEF initialization to make it microphone
working properly.

Reported-and-tested-by: Håvard <hovardslill@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 69283633ae9108e96e98dfbc4fc244a75d326a9f..389e8e9965897a7bb4879143f654a551f3e1e2a8 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7738,6 +7738,7 @@ enum {
        ALC662_FIXUP_ASUS_Nx50,
        ALC668_FIXUP_ASUS_Nx51_HEADSET_MODE,
        ALC668_FIXUP_ASUS_Nx51,
+       ALC668_FIXUP_ASUS_G751,
        ALC891_FIXUP_HEADSET_MODE,
        ALC891_FIXUP_DELL_MIC_NO_PRESENCE,
        ALC662_FIXUP_ACER_VERITON,
@@ -8007,6 +8008,14 @@ static const struct hda_fixup alc662_fixups[] = {
                .chained = true,
                .chain_id = ALC668_FIXUP_ASUS_Nx51_HEADSET_MODE,
        },
+       [ALC668_FIXUP_ASUS_G751] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       { 0x20, AC_VERB_SET_COEF_INDEX, 0xc3 },
+                       { 0x20, AC_VERB_SET_PROC_COEF, 0x4000 },
+                       {}
+               },
+       },
        [ALC891_FIXUP_HEADSET_MODE] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = alc_fixup_headset_mode,
@@ -8080,6 +8089,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_ASUS_Nx50),
        SND_PCI_QUIRK(0x1043, 0x13df, "Asus N550JX", ALC662_FIXUP_BASS_1A),
        SND_PCI_QUIRK(0x1043, 0x129d, "Asus N750", ALC662_FIXUP_ASUS_Nx50),
+       SND_PCI_QUIRK(0x1043, 0x12ff, "ASUS G751", ALC668_FIXUP_ASUS_G751),
        SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_MODE4_CHMAP),
        SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16),
        SND_PCI_QUIRK(0x1043, 0x177d, "ASUS N551", ALC668_FIXUP_ASUS_Nx51),