ACPI: PM: s2idle: Enable Low-Power S0 Idle MSFT UUID for non-AMD systems

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Systems based on Intel platforms that use the MSFT UUID for Low-Power S0
Idle (LPS0) have started to ship, so allow the kernel to use the MSFT
UUID in the non-AMD case too, but in that case make it avoid evaluating
the same _DSM function for two different UUIDs and prioritize the MSFT
one.

While at it, combine two MSFT _DSM function mask checks in
acpi_s2idle_restore_early() so as to make it reflect the
acpi_s2idle_prepare_late() flow more closely and adjust the
Modern Standby entry and exit comments slightly.

Non-AMD systems that do not support MSFT UUID for Low-power S0 Idle are
not expected to be affected by this change in any way.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>

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This commit is contained in:

Rafael J. Wysocki 2024-02-06 20:33:45 +01:00

parent 841c351693

commit 073237281a

1 changed files with 27 additions and 10 deletions

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drivers/acpi/x86/s2idle.c

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