I was able to narrow this down to this commit:
commit 1bde9ecf018ee646b68258921bf0fa364afda38a
Author: Keith Busch <keith.bu...@intel.com>
Date: Thu May 23 09:27:35 2019 -0600
nvme-pci: Use host managed power state for suspend
BugLink: https://bugs.launchpad.net/bugs/1808957
The nvme pci driver prepares its devices for power loss during suspend
by shutting down the controllers. The power setting is deferred to
pci driver's power management before the platform removes power. The
suspend-to-idle mode, however, does not remove power.
NVMe devices that implement host managed power settings can achieve
lower power and better transition latencies than using generic PCI power
settings. Try to use this feature if the platform is not involved with
the suspend. If successful, restore the previous power state on resume.
Cc: Mario Limonciello <mario.limoncie...@dell.com>
Cc: Kai Heng Feng <kai.heng.f...@canonical.com>
Tested-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
Tested-by: Mario Limonciello <mario.limoncie...@dell.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Signed-off-by: Keith Busch <keith.bu...@intel.com>
Signed-off-by: Sagi Grimberg <s...@grimberg.me>
(cherry picked from commit a0805317252ad9cf09d4a32b0435e165580adf8a)
Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
Acked-by: Timo Aaltonen <tjaal...@ubuntu.com>
Acked-by: Stefan Bader <stefan.ba...@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.so...@canonical.com>
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https://bugs.launchpad.net/bugs/1836630
Title:
System76 Oryx Pro (oryp5) with 5.0.0-21: Fail to resume from suspend
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