APPLIED/Cmnt (hirsute/5.11): [RESEND] [SRU] [Unstable/OEM-5.10] [PATCH 0/1] Fix system sleep on TGL systems with Intel ME

[Andrea Righi]

Applied to hirsute/5.11.

Question: is this addressed only in Bugzilla or there's also a LKML
thread about this?

Thanks,
-Andrea

On Tue, Mar 16, 2021 at 09:13:27PM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1919321
> 
> [Impact]
> On TGL systems, PCI devices stops working after system resume. One
> notable case is that USB controller stops working after s2idle.
> 
> [Fix]
> Serialize e1000e PM ops and makes e1000e is the last to suspend the
> first to resume.
> 
> [Test]
> Issue is not reproducible on 3000 cycles suspend tests.
> 
> [Where problems could occur]
> Suspend and resume will be a bit slower. Other than that there's no real
> behavior change.
> 
> Kai-Heng Feng (1):
>   UBUNTU: SAUCE: PCI: Serialize TGL e1000e PM ops
> 
>  drivers/pci/quirks.c | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> -- 
> 2.30.2
> 
> 
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