[PATCH] ALSA: hda/realtek: tas2781: Fix ROG ALLY X audio

[Jonathan LoBue <jlobue10@xxxxxxxxx>]

This patch enables the TI TAS2781 amplifier SoC for the ASUS ROG ALLY X.
This is a design change from the original ASUS ROG ALLY, creating the need
for this patch. All other Realtek Codec settings seem to be re-used from
the original ROG ALLY design (on the ROG ALLY X). This patch maintains the
previous settings for the Realtek codec portion, but enables the I2C
binding for the TI TAS2781 amplifier (instead of the Cirrus CS35L41 amp
used on the original ASUS ROG ALLY).

One other requirement must be met for audio to work on the ASUS ROG ALLY X.
A proper firmware file in the correct location with a proper symlink. We
had reached out to TI engineers and confirmed that the firmware found in
the Windows' driver package has a GPL license. Bazzite Github is hosting
this firmware file for now until proper linux-firmware upstreaming can
occur. https://github.com/ublue-os/bazzite

This firmware file should be placed in
/usr/lib/firmware/ti/tas2781/TAS2XXX1EB3.bin with a symlink to it from
/usr/lib/firmware/TAS2XXX1EB3.bin

Co-developed by: Kyle Gospodnetich <me@xxxxxxxxxxxxxxxxx>
Signed-off-by: Kyle Gospodnetich <me@xxxxxxxxxxxxxxxxx>
Co-developed by: Jan Drogehoff <sentrycraft123@xxxxxxxxx>
Signed-off-by: Jan Drogehoff <sentrycraft123@xxxxxxxxx>
Signed-off-by: Antheas Kapenekakis <lkml@xxxxxxxxxxx>
Tested-by: Richard Alvarez <alvarez.richard@xxxxxxxxx>
Tested-by: Miles Montierth <cyber_dopamine@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jonathan LoBue <jlobue10@xxxxxxxxx>
---
 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 480e82df7a4c..9bc39c2ee6b9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7410,6 +7410,7 @@ enum {
 	ALC285_FIXUP_THINKPAD_X1_GEN7,
 	ALC285_FIXUP_THINKPAD_HEADSET_JACK,
 	ALC294_FIXUP_ASUS_ALLY,
+	ALC294_FIXUP_ASUS_ALLY_X,
 	ALC294_FIXUP_ASUS_ALLY_PINS,
 	ALC294_FIXUP_ASUS_ALLY_VERBS,
 	ALC294_FIXUP_ASUS_ALLY_SPEAKER,
@@ -8877,6 +8878,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC294_FIXUP_ASUS_ALLY_PINS
 	},
+	[ALC294_FIXUP_ASUS_ALLY_X] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = tas2781_fixup_i2c,
+		.chained = true,
+		.chain_id = ALC294_FIXUP_ASUS_ALLY_PINS
+	},
 	[ALC294_FIXUP_ASUS_ALLY_PINS] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -10313,6 +10320,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x1740, "ASUS UX430UA", ALC295_FIXUP_ASUS_DACS),
 	SND_PCI_QUIRK(0x1043, 0x17d1, "ASUS UX431FL", ALC294_FIXUP_ASUS_DUAL_SPK),
 	SND_PCI_QUIRK(0x1043, 0x17f3, "ROG Ally NR2301L/X", ALC294_FIXUP_ASUS_ALLY),
+	SND_PCI_QUIRK(0x1043, 0x1eb3, "ROG Ally X RC72LA", ALC294_FIXUP_ASUS_ALLY_X),
 	SND_PCI_QUIRK(0x1043, 0x1863, "ASUS UX6404VI/VV", ALC245_FIXUP_CS35L41_SPI_2),
 	SND_PCI_QUIRK(0x1043, 0x1881, "ASUS Zephyrus S/M", ALC294_FIXUP_ASUS_GX502_PINS),
 	SND_PCI_QUIRK(0x1043, 0x18b1, "Asus MJ401TA", ALC256_FIXUP_ASUS_HEADSET_MIC),
-- 
2.46.0