00:1f.3 Multimedia audio controller: Intel Corporation Device e428 (rev 01) not working

[bobo123g]

I am on an LG gram with panther lake and cannot get sound working. I have already tried pcie_aspm=force and it didn't help, so this looks an sof issue. I am running sof-firmware 2025.12.2, linux-7.1-rc1 and linux-firmware-git 20260429.56a13f98. The issue is was present when I was running linux-7.0.3. Same controller and issues can be found in this thread

dmesg | grep -i sof

[    0.647803] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    0.647804] software IO TLB: mapped [mem 0x0000000056bf9000-0x000000005abf9000] (64MB)
[    0.820439] integrity: Loaded X.509 cert 'Microsoft Windows Production PCA 2011: a92902398e16c49778cd90f99e4f9ae17c55af53'
[    0.820461] integrity: Loaded X.509 cert 'Microsoft Corporation: Windows UEFI CA 2023: aefc5fbbbe055d8f8daa585473499417ab5a5272'
[    8.284786] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    8.528978] sof-audio-pci-intel-ptl 0000:00:1f.3: SoundWire enabled on CannonLake+ platform, using SOF driver
[    8.528990] sof-audio-pci-intel-ptl 0000:00:1f.3: enabling device (0000 -> 0002)
[    8.529617] sof-audio-pci-intel-ptl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
[    8.529702] sof-audio-pci-intel-ptl 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [xe])
[    8.536307] sof-audio-pci-intel-ptl 0000:00:1f.3: use msi interrupt mode
[    8.576379] sof-audio-pci-intel-ptl 0000:00:1f.3: No SoundWire machine driver found for the ACPI-reported configuration:
[    8.576389] sof-audio-pci-intel-ptl 0000:00:1f.3: link 1 mfg_id 0x025d part_id 0x1320 version 0x3
[    8.576394] sof-audio-pci-intel-ptl 0000:00:1f.3: link 3 mfg_id 0x025d part_id 0x0713 version 0x3
[    8.576404] sof-audio-pci-intel-ptl 0000:00:1f.3: Use SoundWire default machine driver with function topologies
[    8.576406] sof-audio-pci-intel-ptl 0000:00:1f.3: hda codecs found, mask 4
[    8.576410] sof-audio-pci-intel-ptl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4
[    8.576412] sof-audio-pci-intel-ptl 0000:00:1f.3: BT link detected in NHLT tables: 0x4
[    8.576415] sof-audio-pci-intel-ptl 0000:00:1f.3: DMICs detected in NHLT tables: 2
[    8.578447] sof-audio-pci-intel-ptl 0000:00:1f.3: Firmware paths/files for ipc type 1:
[    8.578452] sof-audio-pci-intel-ptl 0000:00:1f.3:  Firmware file:     intel/sof-ipc4/ptl/sof-ptl.ri
[    8.578454] sof-audio-pci-intel-ptl 0000:00:1f.3:  Firmware lib path: intel/sof-ipc4-lib/ptl
[    8.578457] sof-audio-pci-intel-ptl 0000:00:1f.3:  Topology file:     function topologies
[    8.579244] sof-audio-pci-intel-ptl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.14.1.1
[    8.727398] sof-audio-pci-intel-ptl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.14.1.1
[    8.810666] sof-audio-pci-intel-ptl 0000:00:1f.3: Booted firmware version: 2.14.1.1
[    8.838287] sof-audio-pci-intel-ptl 0000:00:1f.3: Using function topologies instead intel/sof-ipc4-tplg/sof-ptl-dummy-2ch.tplg
[    8.838297] sof-audio-pci-intel-ptl 0000:00:1f.3: loading topology 0: intel/sof-ipc4-tplg/sof-ptl-dmic-2ch-id3.tplg
[    8.838389] sof-audio-pci-intel-ptl 0000:00:1f.3: Topology: ABI 3:29:1 Kernel ABI 3:23:1
[    8.838582] sof_sdw sof_sdw: ASoC: Parent card not yet available, widget card binding deferred
[    8.838588] sof-audio-pci-intel-ptl 0000:00:1f.3: loading topology 1: intel/sof-ipc4-tplg/sof-hdmi-pcm5-id5.tplg
[    8.838637] sof-audio-pci-intel-ptl 0000:00:1f.3: Topology: ABI 3:29:1 Kernel ABI 3:23:1
[    8.838798] sof_sdw sof_sdw: ASoC: Parent card not yet available, widget card binding deferred
[    8.860456] sof_sdw sof_sdw: hda_dsp_hdmi_build_controls: no PCM in topology for HDMI converter 3
[    8.875443] input: sof-soundwire Headset Jack as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input12
[    8.875553] input: sof-soundwire HDMI/DP,pcm=5 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input13
[    8.875639] input: sof-soundwire HDMI/DP,pcm=6 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input14
[    8.875711] input: sof-soundwire HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input15