No SoundWire machine driver on Dell 27 AIO (EC27260): RT713 on link 0 + RT1320 on link 3 (Panther Lake)

[dboggs85]

CC @bardliao @oder-chiou @kv2019i

Summary

Same class of failure as #5750 (LG Gram), but a different link layout that the LG Gram fix does not cover. On a Dell 27-inch All-in-One (model EC27260, board 0GMG05) with a Panther Lake SoC, the SoundWire codec/amp are detected at boot but no machine driver matches the ACPI-reported configuration. The driver falls back to a generic path and only HDMI/DP PCMs are created — no internal speaker output and no analog headphone/mic path. USB mic and HDMI audio both work.

The resolved LG Gram case (#5750 / SOF PR sof#10760) is rt713-l3 + rt1320-l1. This board is rt713-l0 + rt1320-l3, so it needs its own match-table entry and topology.

Link layout (this board vs. the resolved LG Gram case)

	Codec (RT713)	Amp (RT1320)
LG Gram (#5750, fixed)	link 3	link 1 (part 0x1320)
This Dell EC27260	link 0 (part 0x0713)	link 3 (part 0x1321)

There is also an extra device on link 0 (mfg 0xd010, part 0x0105) reported as "not supported" — possibly related to #5801.

Hardware / software

• Machine: Dell Inc. Dell 27 All-in-One EC27260, board 0GMG05
• Platform: Intel Panther Lake — sof-audio-pci-intel-ptl at 0000:00:1f.3
• Codec: Realtek RT713/RT712-SDCA (mfg 0x025d, part 0x0713) on link 0. The kernel binds it as rt712-sdca (log line: rt712-sdca sdw:0:0:025d:0713:01), so the relevant match target is likely the rt712_vb family.
• Amplifier: Realtek RT1320 (mfg 0x025d, part 0x1321) on link 3
• Additional link-0 device: mfg 0xd010, part 0x0105 — logged "not supported"
• Distro / kernel: Fedora 44, 7.0.12-201.fc44.x86_64
• SOF firmware: alsa-sof-firmware-2025.12.2-1.fc44, ADSPFW 2.14.1.1
• Userspace: PipeWire 1.6.7, WirePlumber 0.5.14

Relevant kernel log

sof-audio-pci-intel-ptl 0000:00:1f.3: No SoundWire machine driver found for the ACPI-reported configuration:
sof-audio-pci-intel-ptl 0000:00:1f.3: link 0 mfg_id 0x025d part_id 0x0713 version 0x3
sof-audio-pci-intel-ptl 0000:00:1f.3: link 0 mfg_id 0xd010 part_id 0x0105 version 0x0
sof-audio-pci-intel-ptl 0000:00:1f.3: link 3 mfg_id 0x025d part_id 0x1321 version 0x3
sof-audio-pci-intel-ptl 0000:00:1f.3: part id 0x105 is not supported
sof-audio-pci-intel-ptl 0000:00:1f.3: hda codecs found, mask 4
sof-audio-pci-intel-ptl 0000:00:1f.3: using HDA machine driver skl_hda_dsp_generic now
...
sof-audio-pci-intel-ptl 0000:00:1f.3:  Topology file: intel/sof-ipc4-tplg/sof-hda-generic-idisp.tplg

The amp enumerates on the bus (confirming link 3 / part 0x1321), with the usual pre-INT-mask parity warning:

soundwire sdw:0:3:025d:1321:01: PARITY error detected before INT mask is enabled

The codec on link 0 is bound as rt712-sdca (confirming part 0x0713 / link 0):

rt712-sdca sdw:0:0:025d:0713:01: Bus clash detected before INT mask is enabled

aplay -l shows only HDMI 1/2/3; no analog playback device is created.

What appears to be missing

1. Match-table entry in sound/soc/intel/common/soc-acpi-intel-ptl-match.c for RT713 (link 0) + RT1320 (link 3), amp part 0x1321. Existing PTL rt713 entries cover links 2/3 only.
2. A topology file — no sof-ptl-rt713-l0-rt1320-l3.tplg ships in alsa-sof-firmware-2025.12.2. (An rt713-l0 topology exists only for LNL with a different amp: sof-lnl-rt713-l0-rt1318-l1.)

Closest existing work

• No Sound on Intel Panther Lake (LG Gram) - Missing SoundWire Machine Driver for RT1320/RT713 #5750 / sof#10760 — LG Gram, rt713-l3-rt1320-l1. Same codec/amp, different links; fix does not apply here.
• The v2 patch "Add rt713_vb_l3_rt1320_l3 support" (linux-sound, May 2025) — codec on link 3, amp part 0x1320; also does not match this board.

Attachments

alsa-info.txt
kern.log