Please also link model ALC269_FIXUP_HEADSET_MODE on this.
> -----Original Message-----
> From: Jian-Hong Pan <jian-h...@endlessm.com>
> Sent: Friday, July 3, 2020 3:05 PM
> To: Takashi Iwai <ti...@suse.com>
> Cc: Kailang <kail...@realtek.com>; alsa-de...@alsa-project.org;
> linux-kernel@vger.kernel.org; li...@endlessm.com; Jian-Hong Pan
> <jian-h...@endlessm.com>; Daniel Drake <dr...@endlessm.com>
> Subject: [PATCH 2/3] ALSA: hda/realtek: Enable headset mic of Acer C20-820
> with ALC269VC
>
> The Acer Aspire C20-820 AIO's audio (1025:1065) with ALC269VC can't detect
> the headset microphone until ALC269VC_FIXUP_ACER_HEADSET_MIC quirk
> maps the NID 0x18 as the headset mic pin.
>
> Signed-off-by: Jian-Hong Pan <jian-h...@endlessm.com>
> Signed-off-by: Daniel Drake <dr...@endlessm.com>
> ---
> sound/pci/hda/patch_realtek.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index dfb4bca07d3f..3255da8b3849 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -6150,6 +6150,7 @@ enum {
> ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET,
> ALC295_FIXUP_ASUS_MIC_NO_PRESENCE,
> ALC269VC_FIXUP_ACER_VCOPPERBOX_PINS,
> + ALC269VC_FIXUP_ACER_HEADSET_MIC,
> };
>
> static const struct hda_fixup alc269_fixups[] = { @@ -7339,6 +7340,15 @@
> static const struct hda_fixup alc269_fixups[] = {
> .chained = true,
> .chain_id = ALC269_FIXUP_HEADSET_MODE
> },
> + [ALC269VC_FIXUP_ACER_HEADSET_MIC] = {
> + .type = HDA_FIXUP_PINS,
> + .v.pins = (const struct hda_pintbl[]) {
> + { 0x18, 0x02a11030 }, /* use as headset mic */
> + { }
> + },
> + .chained = true,
> + .chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
> + },
> };
>
> static const struct snd_pci_quirk alc269_fixup_tbl[] = { @@ -7354,6 +7364,7
> @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
> SND_PCI_QUIRK(0x1025, 0x0775, "Acer Aspire E1-572",
> ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572),
> SND_PCI_QUIRK(0x1025, 0x079b, "Acer Aspire V5-573G",
> ALC282_FIXUP_ASPIRE_V5_PINS),
> SND_PCI_QUIRK(0x1025, 0x102b, "Acer Aspire C24-860",
> ALC286_FIXUP_ACER_AIO_MIC_NO_PRESENCE),
> + SND_PCI_QUIRK(0x1025, 0x1065, "Acer Aspire C20-820",
> +ALC269VC_FIXUP_ACER_HEADSET_MIC),
> SND_PCI_QUIRK(0x1025, 0x106d, "Acer Cloudbook 14",
> ALC283_FIXUP_CHROME_BOOK),
> SND_PCI_QUIRK(0x1025, 0x1099, "Acer Aspire E5-523G",
> ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
> SND_PCI_QUIRK(0x1025, 0x110e, "Acer Aspire ES1-432",
> ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
> --
> 2.27.0
