there are 2 patches on suspend/resume in version 6.1.12
in https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.12
Revert “PCI/ASPM: Refactor L1 PM Substates Control Register programming”
Revert “PCI/ASPM: Save L1 PM Substates Capability for suspend/resume”
kernel version 6.1.12 is in Testing