Can not unload ath11k_pci and load it back

[Mark Herbert]

Dear ath11k team,

The main issue is I can not hibernate and wake up my XPS 13 9310.  If I 
keep module loaded it hibernate. Bu hangs on resume. If I unload module 
- it resumes OK but there is no chance to have WIFI back without reboot.

If I do rmmod ath11k_pci - it shows errors in dmesg:

[   48.801504] ath11k_pci 0000:72:00.0: link down error during global reset
[   48.801700] DMAR: DRHD: handling fault status reg 2
[   48.801709] DMAR: [INTR-REMAP] Request device [0x72:0x00.0] fault 
index 0x60 [fault reason 0x22] Present field in the IRTE entry is clear

If I do modprobe immediately it does load module but card will not come 
back again.

In Arch wiki reloading modules was explained as a workaround to 
suspend-resume 9310, but looks like it does not work anymore. Suspend to 
idle works fine - no module unloading needed.


Kind regards

Mark.