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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-01 13:44:25 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-03 01:13:24 +0300 |
| commit | 501debd4aa5edc755037c39ea5a8fba23b41e580 (patch) | |
| tree | 8769773b114142028a5b1044963921b3c4e33013 /drivers/acpi/spcr.c | |
| parent | 2f02a7ecd512288c40bd72bdd4d87ab4f01c1615 (diff) | |
| download | linux-501debd4aa5edc755037c39ea5a8fba23b41e580.tar.xz | |
PM: ACPI/PCI: Resume all devices during hibernation
Both the PCI bus type and the ACPI PM domain avoid resuming
runtime-suspended devices with DPM_FLAG_SMART_SUSPEND set during
hibernation (before creating the snapshot image of system memory),
but that turns out to be a mistake. It leads to functional issues
and adds complexity that's hard to justify.
For this reason, resume all runtime-suspended PCI devices and all
devices in the ACPI PM domains before creating a snapshot image of
system memory during hibernation.
Fixes: 05087360fd7a (ACPI / PM: Take SMART_SUSPEND driver flag into account)
Fixes: c4b65157aeef (PCI / PM: Take SMART_SUSPEND driver flag into account)
Link: https://lore.kernel.org/linux-acpi/917d4399-2e22-67b1-9d54-808561f9083f@uwyo.edu/T/#maf065fe6e4974f2a9d79f332ab99dfaba635f64c
Reported-by: Robert R. Howell <RHowell@uwyo.edu>
Tested-by: Robert R. Howell <RHowell@uwyo.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/acpi/spcr.c')
0 files changed, 0 insertions, 0 deletions