ALSA: hda - Fixup inverted internal mic for Lenovo E50-80

Inform userspace that one channel of the internal mic has reversed
polarity, so it does not attempt to add both channels together and
end up with silence.

Cc: stable@vger.kernel.org
Reported-by: Andrzej Mendel <andrzej.mendel@gmail.com>
Alsa-info: http://www.alsa-project.org/db/?f=3088f82a0cf977855f92af9db8ad406c04f71efa
BugLink: https://bugs.launchpad.net/bugs/1529624
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
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 3a89d82f805759f5c4016c47df40d1a3b5522f49..2fdda51d07c4172b2d2219f1913f65991aff3632 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4666,6 +4666,7 @@ enum {
        ALC290_FIXUP_SUBWOOFER,
        ALC290_FIXUP_SUBWOOFER_HSJACK,
        ALC269_FIXUP_THINKPAD_ACPI,
+       ALC269_FIXUP_DMIC_THINKPAD_ACPI,
        ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
        ALC255_FIXUP_DELL2_MIC_NO_PRESENCE,
        ALC255_FIXUP_HEADSET_MODE,
@@ -5103,6 +5104,12 @@ static const struct hda_fixup alc269_fixups[] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = hda_fixup_thinkpad_acpi,
        },
+       [ALC269_FIXUP_DMIC_THINKPAD_ACPI] = {
+               .type = HDA_FIXUP_FUNC,
+               .v.func = alc_fixup_inv_dmic,
+               .chained = true,
+               .chain_id = ALC269_FIXUP_THINKPAD_ACPI,
+       },
        [ALC255_FIXUP_DELL1_MIC_NO_PRESENCE] = {
                .type = HDA_FIXUP_PINS,
                .v.pins = (const struct hda_pintbl[]) {
@@ -5457,6 +5464,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
        SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE),
        SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+       SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
        SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
        SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
        SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),