ACPI / PM: Support D3 COLD device in old BIOS for ZPODD

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D3cold is only regarded as valid if the "_PR3" object is
present for the given device after the commit 20dacb71ad
("ACPI/PM: Rework device power management to follow ACPI 6").

But some old BIOS only defined "_PS3" for the D3COLD device,
such as ZPODD device. And old kernel also believes the device with
"_PS3" is a D3COLD device.

So, add some logics for supporting D3 COLD device with old BIOS
which is compatible with earlier ACPI spec and kernel behavior.

Link: http://marc.info/?l=linux-acpi&m=144946938709759&w=2
Signed-off-by: Ken Xue <Ken.Xue@amd.com>
Reported-and-tested-by: Gang Long <Gang.Long@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

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Ken Xue 2015-12-09 16:17:30 +08:00 • committed by Rafael J. Wysocki

parent 527e9316f8

commit cd7f84c028

1 changed files with 3 additions and 1 deletions

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include/acpi/acpi_bus.h

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