}
 }
 
+static void alc897_hp_automute_hook(struct hda_codec *codec,
+                                        struct hda_jack_callback *jack)
+{
+       struct alc_spec *spec = codec->spec;
+       int vref;
+
+       snd_hda_gen_hp_automute(codec, jack);
+       vref = spec->gen.hp_jack_present ? (PIN_HP | AC_PINCTL_VREF_100) : PIN_HP;
+       snd_hda_codec_write(codec, 0x1b, 0, AC_VERB_SET_PIN_WIDGET_CONTROL,
+                           vref);
+}
+
+static void alc897_fixup_lenovo_headset_mic(struct hda_codec *codec,
+                                    const struct hda_fixup *fix, int action)
+{
+       struct alc_spec *spec = codec->spec;
+       if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+               spec->gen.hp_automute_hook = alc897_hp_automute_hook;
+       }
+}
+
 static const struct coef_fw alc668_coefs[] = {
        WRITE_COEF(0x01, 0xbebe), WRITE_COEF(0x02, 0xaaaa), WRITE_COEF(0x03,    0x0),
        WRITE_COEF(0x04, 0x0180), WRITE_COEF(0x06,    0x0), WRITE_COEF(0x07, 0x0f80),
        ALC668_FIXUP_ASUS_NO_HEADSET_MIC,
        ALC668_FIXUP_HEADSET_MIC,
        ALC668_FIXUP_MIC_DET_COEF,
+       ALC897_FIXUP_LENOVO_HEADSET_MIC,
+       ALC897_FIXUP_HEADSET_MIC_PIN,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
                        {}
                },
        },
+       [ALC897_FIXUP_LENOVO_HEADSET_MIC] = {
+               .type = HDA_FIXUP_FUNC,
+               .v.func = alc897_fixup_lenovo_headset_mic,
+       },
+       [ALC897_FIXUP_HEADSET_MIC_PIN] = {
+               .type = HDA_FIXUP_PINS,
+               .v.pins = (const struct hda_pintbl[]) {
+                       { 0x1a, 0x03a11050 },
+                       { }
+               },
+               .chained = true,
+               .chain_id = ALC897_FIXUP_LENOVO_HEADSET_MIC
+       },
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
        SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),
        SND_PCI_QUIRK(0x14cd, 0x5003, "USI", ALC662_FIXUP_USI_HEADSET_MODE),
        SND_PCI_QUIRK(0x17aa, 0x1036, "Lenovo P520", ALC662_FIXUP_LENOVO_MULTI_CODECS),
+       SND_PCI_QUIRK(0x17aa, 0x32ca, "Lenovo ThinkCentre M80", ALC897_FIXUP_HEADSET_MIC_PIN),
+       SND_PCI_QUIRK(0x17aa, 0x32cb, "Lenovo ThinkCentre M70", ALC897_FIXUP_HEADSET_MIC_PIN),
+       SND_PCI_QUIRK(0x17aa, 0x32cf, "Lenovo ThinkCentre M950", ALC897_FIXUP_HEADSET_MIC_PIN),
+       SND_PCI_QUIRK(0x17aa, 0x32f7, "Lenovo ThinkCentre M90", ALC897_FIXUP_HEADSET_MIC_PIN),
        SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD),
        SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD),
        SND_PCI_QUIRK(0x1849, 0x5892, "ASRock B150M", ALC892_FIXUP_ASROCK_MOBO),