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]

On Wed, Mar 17, 2021 at 11:24:54AM +0800, Kai-Heng Feng wrote:
> On Wed, Mar 17, 2021 at 12:00 AM Andrea Righi
> <andrea.righi at canonical.com> wrote:
> >
> > Applied to hirsute/5.11.
> >
> > Question: is this addressed only in Bugzilla or there's also a LKML
> > thread about this?
> 
> There wasn't much to discuss, because it's not really a bug in PCI subsystem:
> https://lore.kernel.org/linux-pci/20210303172223.GA634698@bjorn-Precision-5520/
> 
> Kai-Heng

OK, I added that as a Link: in the commit message, just to make sure we
are not missing any additional discussion/detail about this patch.

Thanks!
-Andrea

> 
> >
> > 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
> > >
> > >
> > > --
> > > kernel-team mailing list
> > > kernel-team at lists.ubuntu.com
> > > https://lists.ubuntu.com/mailman/listinfo/kernel-team