For the HP Laptop 15-fc0xxx with ALC236, the built-in mic 0x12 was
not set up, making it unusable; after adding it, it now works properly.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221233
Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
---
 sound/hda/codecs/realtek/alc269.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 6787e54fcfe6..8ebc765e4934 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -4123,6 +4123,7 @@ enum {
 	ALC245_FIXUP_BASS_HP_DAC,
 	ALC245_FIXUP_ACER_MICMUTE_LED,
 	ALC245_FIXUP_CS35L41_I2C_2_MUTE_LED,
+	ALC236_FIXUP_HP_DMIC,
 };
 
 /* A special fixup for Lenovo C940 and Yoga Duet 7;
@@ -6658,6 +6659,13 @@ static const struct hda_fixup alc269_fixups[] = {
 		.v.func = alc245_fixup_hp_mute_led_coefbit,
 		.chained = true,
 		.chain_id = ALC287_FIXUP_CS35L41_I2C_2,
+	},
+	[ALC236_FIXUP_HP_DMIC] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x12, 0x90a60160 }, /* use as internal mic */
+			{ }
+		},
 	}
 };
 
@@ -7152,6 +7160,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8da1, "HP 16 Clipper OmniBook X", ALC287_FIXUP_CS35L41_I2C_2),
 	SND_PCI_QUIRK(0x103c, 0x8da7, "HP 14 Enstrom OmniBook X", ALC287_FIXUP_CS35L41_I2C_2),
 	SND_PCI_QUIRK(0x103c, 0x8da8, "HP 16 Piston OmniBook X", ALC287_FIXUP_CS35L41_I2C_2),
+	SND_PCI_QUIRK(0x103c, 0x8dc9, "HP Laptop 15-fc0xxx", ALC236_FIXUP_HP_DMIC),
 	SND_PCI_QUIRK(0x103c, 0x8dd4, "HP EliteStudio 8 AIO", ALC274_FIXUP_HP_AIO_BIND_DACS),
 	SND_PCI_QUIRK(0x103c, 0x8dd7, "HP Laptop 15-fd0xxx", ALC236_FIXUP_HP_MUTE_LED_COEFBIT2),
 	SND_PCI_QUIRK(0x103c, 0x8de8, "HP Gemtree", ALC245_FIXUP_TAS2781_SPI_2),
-- 
2.25.1

On Tue, 31 Mar 2026 03:35:36 +0200,
Zhang Heng wrote:
> 
> For the HP Laptop 15-fc0xxx with ALC236, the built-in mic 0x12 was
> not set up, making it unusable; after adding it, it now works properly.
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=221233
> Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>

Applied now.  Thanks.


Takashi