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ACPI: CPPC: Add definition for undefined FADT preferred PM profile value
author
Mario Limonciello
<mario.limonciello@amd.com>
Tue, 20 Jun 2023 17:24:31 +0000
(12:24 -0500)
committer
Rafael J. Wysocki
<rafael.j.wysocki@intel.com>
Wed, 21 Jun 2023 16:44:56 +0000
(18:44 +0200)
In the event a new preferred PM profile value is introduced it's best for
code to be able to defensively guard against it so that the wrong settings
don't get applied on a new system that uses this profile but ancient
kernels.
Acked-by: Huang Rui <ray.huang@amd.com>
Suggested-by: Gautham Ranjal Shenoy <gautham.shenoy@amd.com>
Link:
https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#fixed-acpi-description-table-fadt
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
include/acpi/actbl.h
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diff --git
a/include/acpi/actbl.h
b/include/acpi/actbl.h
index
e5dfb6f
..
451f627
100644
(file)
--- a/
include/acpi/actbl.h
+++ b/
include/acpi/actbl.h
@@
-307,7
+307,8
@@
enum acpi_preferred_pm_profiles {
PM_SOHO_SERVER = 5,
PM_APPLIANCE_PC = 6,
PM_PERFORMANCE_SERVER = 7,
- PM_TABLET = 8
+ PM_TABLET = 8,
+ NR_PM_PROFILES = 9
};
/* Values for sleep_status and sleep_control registers (V5+ FADT) */