[PATCH 1/2] ALSA: hda/realtek: Fix headphone output on ASUS ROG Ally X

[Matthew Schwartz <matthew.schwartz@linux.dev>]

The ASUS ROG Ally X (RC72LA, PCI SSID 0x1043:0x1eb3) with an ALC294
codec produces no sound from the headphone jack, and unplugging the
headphones can leave the speakers muted too.

The device uses ALC287_FIXUP_TAS2781_I2C, which chains into the
ThinkPad fixup chain. alc285_fixup_thinkpad_x1_gen7() makes the
headphone (pin 0x21) and speaker (pin 0x17) share DAC 0x03. That is
correct for a ThinkPad, but here the shared DAC is exposed as a
"Line Out" control that defaults to zero, so the headphones stay
silent when plugged in.

Add a dedicated fixup chain for the Ally X that sets up the TAS2781
amplifier and the headset jack without the ThinkPad DAC sharing, and
routes the speaker to DAC 0x02 so the headphone and speaker get
independent DACs.

Also, fixup the wrong product code (it's RC72LA, not RCLA72).

Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
---
 sound/hda/codecs/realtek/alc269.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index d9e2384fc0ba..cb385b6c1788 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -4117,6 +4117,8 @@ enum {
 	ALC236_FIXUP_DELL_DUAL_CODECS,
 	ALC287_FIXUP_CS35L41_I2C_2_THINKPAD_ACPI,
 	ALC287_FIXUP_TAS2781_I2C,
+	ALC287_FIXUP_ASUS_ALLY_X,
+	ALC287_FIXUP_ASUS_ALLY_X_I2C,
 	ALC295_FIXUP_DELL_TAS2781_I2C,
 	ALC245_FIXUP_TAS2781_SPI_2,
 	ALC287_FIXUP_TXNW2781_I2C,
@@ -6476,6 +6478,18 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC285_FIXUP_THINKPAD_HEADSET_JACK,
 	},
+	[ALC287_FIXUP_ASUS_ALLY_X] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc285_fixup_speaker2_to_dac1,
+		.chained = true,
+		.chain_id = ALC287_FIXUP_ASUS_ALLY_X_I2C,
+	},
+	[ALC287_FIXUP_ASUS_ALLY_X_I2C] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = tas2781_fixup_tias_i2c,
+		.chained = true,
+		.chain_id = ALC225_FIXUP_HEADSET_JACK,
+	},
 	[ALC245_FIXUP_TAS2781_SPI_2] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = tas2781_fixup_spi,
@@ -7459,7 +7473,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x1e83, "ASUS GA605W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1e93, "ASUS ExpertBook B9403CVAR", ALC294_FIXUP_ASUS_HPE),
-	SND_PCI_QUIRK(0x1043, 0x1eb3, "ASUS Ally RCLA72", ALC287_FIXUP_TAS2781_I2C),
+	SND_PCI_QUIRK(0x1043, 0x1eb3, "ASUS Ally RC72LA", ALC287_FIXUP_ASUS_ALLY_X),
 	SND_PCI_QUIRK(0x1043, 0x1ed3, "ASUS HN7306W", ALC287_FIXUP_CS35L41_I2C_2),
 	HDA_CODEC_QUIRK(0x1043, 0x1ee2, "ASUS UM6702RA/RC", ALC285_FIXUP_ASUS_I2C_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1ee2, "ASUS UM6702RA/RC", ALC287_FIXUP_CS35L41_I2C_2),
-- 
2.55.0