Comment 3 for bug 1529624

On Mon, 11 Jan 2016 09:33:14 +0100,
David Henningsson wrote:
>
> 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: <email address hidden>
> Reported-by: Andrzej Mendel <email address hidden>
> Alsa-info: http://www.alsa-project.org/db/?f=3088f82a0cf977855f92af9db8ad406c04f71efa
> BugLink: https://bugs.launchpad.net/bugs/1529624
> Signed-off-by: David Henningsson <email address hidden>

Applied, thanks.

Takashi

> ---
> sound/pci/hda/patch_realtek.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 3a89d82..2fdda51 100644
> --- 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),
> --
> 1.9.1
>