[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 #66 from Rong Zhang (i@rong.moe) ---
(In reply to boite.pour.spam from comment #65)
> Would it be possible to serialize the ideapad-laptop and ucsi_acpi
> simultaneous accesses to a kernel mutex so that it's not possible for the
> kernel to timeout on the ACPI mutex if only one kthread can be accessing it?

It's a completely dirty hack and would not fix the issue completely. The ECMT
mutex is not only used by ideapad-laptop and ucsi_acpi, but also heavily used
elsewhere. If you really care about that, you can simply blacklist usci_acpi as
it also returns garbage due to the FW bug, see
https://bugzilla.kernel.org/show_bug.cgi?id=221065#c34

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