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>

diff --git a/Documentation/ABI/stable/sysfs-acpi-pmprofile b/Documentation/ABI/stable/sysfs-acpi-pmprofile
index 2d6314f..cd55e42 100644 (file)
--- 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
                == =================