[RESEND] [SRU] [Unstable/OEM-5.10] [PATCH 0/1] Fix system sleep on TGL systems with Intel ME

[Kai-Heng Feng]

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