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admgpu aspm cause hang during suspend&resume with wx3200 on adl platform

Brief summary of the problem:

Use wx3200 as a video output, during suspend/resume, system would hang.

Hardware description:

  • CPU: i7-12700k
  • GPU: wx3200
  • System Memory:
  • Display(s): wx3200
  • Type of Display Connection: hdmi

System information:

  • Distro name and Version: Ubuntu 20.04.1
  • Kernel version: 5.14/5.17-rc2
  • Custom kernel: ubuntu-5.14-oem-1021
  • AMD official driver version:

How to reproduce the issue:

use wx3200 as the video output.
Trigger suspend and the system would hang.

Found it's a regression caused by
0064b0ce85) drm/amd/pm: enable ASPM by default

With v5.14 and v5.17rc2 and disable ampgpu aspm, would not get the issue.

Attached files:

Screenshots/video files

Log files (for system lockups / game freezes / crashes)

lspci_vvv_20220128