[Bug 221065] ideapad_acpi: unexpected charge_types spam on Yoga Pro 7 14ASP9

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221065

--- Comment #32 from Avraham Hollander (anhollander516@gmail.com) ---
(In reply to Avraham Hollander from comment #31)
> (In reply to Rong Zhang from comment #29)
> > (In reply to Avraham Hollander from comment #27)
> > 
> > Thanks for your test.
> > 
> > > It did not. Unplugging and replugging the charger a bunch of times
> results
> > > in:
> > > [...]
> > 
> > Ahh, my fault. I meant fixing the issue that ideapad-laptop misinterprets
> > the error returned by the GBMD method as a valid return value. According to
> > your log, the patch seems correct.
> > 
> > As for the issue of the mutex chaos (and hence the error logs you got), we
> > can't really fix it from the kernel side. It can only be fixed by a BIOS
> > update. That's why I added Mark to the CC list.
> > 
> > I've seen GBMD, SALS, SBMC, and DYTC calling ECCC. I think we will have to
> > add a DMI quirk disabling most (if not all) features of ideapad-laptop on
> > 83DR until a BIOS update fixes the mutex bug. Doing so should make the
> mutex
> > less likely to break. As a quick test, could you test if blacklisting
> > ideapad-laptop in modprobe.d (reboot required, ofc) helps?
> > 
> > (In reply to Avraham Hollander from comment #28)
> > > Is there anything you notice in there that could potentially cause the
> > > system to take excessively long (2-6 seconds) to resume from s2idle?
> That's
> > > another probably ACPI issue that I've always had. This is almost
> certainly
> > > unrelated to the charger bug and I don't want to go completely off topic,
> > > but I figure it's worth mentioning now that I have contact with the
> > relevant
> > > people.
> > 
> > I guess this is also related to the mutex bug in DSDT, considering it has a
> > bunch of EC queries calling ECCC. Blacklisting ideapad-laptop may have some
> > help, as doing so reduces the probability of running into a race condition.
> > 
> > I am not really familiar with s2idle and EC queries, so I may not be the
> > best person to answer this. Armin, do you have any thoughts?
> 
> I can't get it to trigger either way now, whether ideapad_laptop is loaded
> or not. Could the cause be that my battery is fully charged now? I'm going
> to discharge it some and try it again.

Actually, it just seems to be really intermittent. Now I'm getting the errors
from ucsi_acpi but not the mutex error, with ideapad_laptop loaded. It's hard
to say for sure whether blacklisting the module helps or not.

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