[PATCH] ALSA: hda/realtek: Add quirk for Infinix INBOOK X3 Slim

[Gunal S <gunal2002@gmail.com>]

The Infinix INBOOK X3 Slim (ALC269VB, subsystem 0x2782:0250) has its
internal speakers wired to pin 0x1b, but the BIOS pin configuration
table declares 0x1b as "no physical connection" (0x411111f0). It instead
declares pin 0x14 as the internal speaker, although nothing is connected
to 0x14.

As a result the internal speakers are silent under Linux while the
headphone jack works correctly. The codec output path to 0x14 is fully
open (DAC assigned and streaming, mixer and pin unmuted, EAPD asserted),
so the failure is silent with no error reported. The speakers work under
Windows, where the vendor driver supplies its own pin table.

Add a fixup that disables the unconnected pin 0x14 and declares pin
0x1b as the internal speaker.

Reusing the existing ALC269VC_FIXUP_INFINIX_Y4_MAX was tried first, since
it also remaps 0x1b to an internal speaker. It is not sufficient here: it
leaves 0x14 declared, so autoconfig finds two line_outs

  line_outs=2 (0x14/0x1b/0x0/0x0/0x0) type:speaker

and binds the primary "Speaker" control to the unconnected pin 0x14 while
demoting the working speaker at 0x1b to "Bass Speaker". Audio is audible
that way, but the volume and mute controls a desktop actually uses end up
attached to a pin that is not wired to anything. Disabling 0x14 is what
produces a single correct Speaker output.

Verified on the affected machine: with the corrected pin
configuration the driver's autoconfig reports

  line_outs=1 (0x1b/0x0/0x0/0x0/0x0) type:speaker

both channels play, headphone auto-mute switches correctly in both
directions, and audio survives codec runtime suspend (D3) and resume.

Signed-off-by: Gunal S <gunal2002@gmail.com>
---
 sound/hda/codecs/realtek/alc269.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 379e1458f..d33904273 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -3939,6 +3939,7 @@ enum {
 	ALC269_FIXUP_DMIC_THINKPAD_ACPI,
 	ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13,
 	ALC269VC_FIXUP_INFINIX_Y4_MAX,
+	ALC269VB_FIXUP_INFINIX_INBOOK_X3_SLIM,
 	ALC269VC_FIXUP_LUNNEN_GROUND_14,
 	ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO,
 	ALC255_FIXUP_ACER_MIC_NO_PRESENCE,
@@ -4409,6 +4410,14 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
 	},
+	[ALC269VB_FIXUP_INFINIX_INBOOK_X3_SLIM] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x14, 0x411111f0 }, /* disable, not connected */
+			{ 0x1b, 0x90170110 }, /* use as internal speaker */
+			{ }
+		},
+	},
 	[ALC269VC_FIXUP_LUNNEN_GROUND_14] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -8020,6 +8029,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x2782, 0x0214, "VAIO VJFE-CL", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x2782, 0x0228, "Infinix ZERO BOOK 13", ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13),
 	SND_PCI_QUIRK(0x2782, 0x0232, "CHUWI CoreBook XPro", ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO),
+	SND_PCI_QUIRK(0x2782, 0x0250, "Infinix INBOOK X3 Slim", ALC269VB_FIXUP_INFINIX_INBOOK_X3_SLIM),
 	SND_PCI_QUIRK(0x2782, 0x1407, "Positivo P15X", ALC269_FIXUP_POSITIVO_P15X_HEADSET_MIC),
 	SND_PCI_QUIRK(0x2782, 0x1409, "Positivo K116J", ALC269_FIXUP_POSITIVO_P15X_HEADSET_MIC),
 	SND_PCI_QUIRK(0x2782, 0x1701, "Infinix Y4 Max", ALC269VC_FIXUP_INFINIX_Y4_MAX),
-- 
2.55.0