Comment 8 for bug 1990700

This affects me as well, same exact symptoms, but I'm in the same boat at Lorenzo 4 comments above.

Pardon my inexperience in kernel module building, but if this is relevant with my Fedora 36 install, I would be willing to build and test this, however I would need a pointer at a wiki/docs on where to obtain source and how to activate.

Specifications:
Levovo ThinkPad P1 Gen 5 with optional Fibocom FM350-GL 5G SUB6 Modem
Fedora 36: Relatively fresh install, though I have been messing with the sleep options trying to get it to stay suspended
Gnome Wayland, but tested with KDE Plasma X11 and the problem is identical
Linux 6.0.5-200.fc36.x86_64

Some excepts from journalctl:
kernel: mtk_t7xx 0000:08:00.0: [PM] SAP suspend error: -110
kernel: mtk_t7xx 0000:08:00.0: PM: pci_pm_suspend(): t7xx_pci_pm_suspend+0x0/0x20 [mtk_t7xx] returns -110
kernel: mtk_t7xx 0000:08:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x160 returns -110
kernel: mtk_t7xx 0000:08:00.0: PM: failed to suspend async: error -110
kernel: PM: Some devices failed to suspend, or early wake event detected

lspci for device:
08:00.0 Wireless controller [0d40]: MEDIATEK Corp. Device 4d75 (rev 01)
  Subsystem: Device 1cf8:3502
  Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 19
  Memory at 625c800000 (64-bit, prefetchable) [size=32K]
  Memory at b4800000 (64-bit, non-prefetchable) [size=8M]
  Memory at 625c000000 (64-bit, prefetchable) [size=8M]
  Capabilities: [80] Express Endpoint, MSI 00
  Capabilities: [d0] MSI-X: Enable+ Count=34 Masked-
  Capabilities: [e0] MSI: Enable- Count=1/32 Maskable+ 64bit+
  Capabilities: [f8] Power Management version 3
  Capabilities: [100] Vendor Specific Information: ID=1556 Rev=1 Len=008 <?>
  Capabilities: [108] Latency Tolerance Reporting
  Capabilities: [110] L1 PM Substates
  Capabilities: [200] Advanced Error Reporting
  Capabilities: [300] Secondary PCI Express
  Kernel driver in use: mtk_t7xx
  Kernel modules: mtk_t7xx

Ping me if I can help, thank you!