Re: [BUG] wifi: mt76: mt7925e: resume fails with -110 on MT7927, occasional system hang

[Yi Cong <cong.yi@linux.dev>]

On Fri, 23 Oct 2026 17:16:37 -0700, Devin Wittmayer <lucid_duck@justthetip.ca> wrote:
>
> Jason Hodge wrote:
> >   mt7925e 0000:03:00.0: PM: dpm_run_callback(): pci_pm_resume returns -110
> >   mt7925e 0000:03:00.0: PM: failed to resume async: error -110
>
> Yi Cong posted a patch for these same two errors on October 22:
>
> https://lore.kernel.org/linux-wireless/20261022085100.132368-1-cong.yi@linux.dev/
>
> When the resume handshake times out, the driver already resets the card
> to recover it, but still hands -110 to the PM core. The patch reports
> success once that reset is scheduled. It applies cleanly to 7.2.11.
> I've added Yi Cong to Cc.
>
> Thanks for the detailed report and the unload workaround.
>
> Devin

It does look like the same issue I encountered,
although I only see it on some ARM platforms,
likely related to their power management policies.
In my case, the driver just reset; system didn't hang.

You can try applying this patch to see if it resolves
the problem.

Regards,
    Yi Cong