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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-03-02 18:49:12 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-03-20 18:23:23 +0100
commit55f4f6ead46c0c5c5cd98395a4422509da063e0d (patch)
tree0d0dba402596b5865b09bfb239f831a3c6240ba9 /Documentation/ABI
parente8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff)
downloadlinux-55f4f6ead46c0c5c5cd98395a4422509da063e0d.tar.gz
ACPI: docs: Update the pm_profile sysfs attribute documentation
The list of possible pm_profile values listed in sysfs-acpi-pmprofile does not include the tablet one (8), so update it. While at it, rewrite the description so it is more accurate and somewhat easier to follow. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/stable/sysfs-acpi-pmprofile20
1 files changed, 11 insertions, 9 deletions
diff --git a/Documentation/ABI/stable/sysfs-acpi-pmprofile b/Documentation/ABI/stable/sysfs-acpi-pmprofile
index 2d6314f0e4e4..cd55e421d921 100644
--- a/Documentation/ABI/stable/sysfs-acpi-pmprofile
+++ b/Documentation/ABI/stable/sysfs-acpi-pmprofile
@@ -2,16 +2,17 @@ What: /sys/firmware/acpi/pm_profile
Date: 03-Nov-2011
KernelVersion: v3.2
Contact: linux-acpi@vger.kernel.org
-Description: The ACPI pm_profile sysfs interface exports the platform
- power management (and performance) requirement expectations
- as provided by BIOS. The integer value is directly passed as
- retrieved from the FADT ACPI table.
+Description: The ACPI pm_profile sysfs interface exposes the preferred
+ power management (and performance) profile of the platform
+ as provided in the ACPI FADT Preferred_PM_Profile field.
-Values: For possible values see ACPI specification:
- 5.2.9 Fixed ACPI Description Table (FADT)
- Field: Preferred_PM_Profile
+ The integer value is directly passed as retrieved from the FADT.
- Currently these values are defined by spec:
+Values: For the possible values refer to the Preferred_PM_Profile field
+ definition in Table 5.9 "FADT Format", Section 5.2.9 "Fixed ACPI
+ Description Table (FADT)" of the ACPI specification.
+
+ As of ACPI 6.5, the following values are defined:
== =================
0 Unspecified
@@ -22,5 +23,6 @@ Values: For possible values see ACPI specification:
5 SOHO Server
6 Appliance PC
7 Performance Server
- >7 Reserved
+ 8 Tablet
+ >8 Reserved
== =================