From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] ACPI: docs: Update the pm_profile sysfs attribute documentation
Date: Thu, 02 Mar 2023 18:49:12 +0100 [thread overview]
Message-ID: <12163052.O9o76ZdvQC@kreacher> (raw)
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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>
---
Documentation/ABI/stable/sysfs-acpi-pmprofile | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
Index: linux-pm/Documentation/ABI/stable/sysfs-acpi-pmprofile
===================================================================
--- linux-pm.orig/Documentation/ABI/stable/sysfs-acpi-pmprofile
+++ linux-pm/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.
+
+ Currently (as of ACPI 6.5), the following values are defined:
== =================
0 Unspecified
@@ -22,5 +23,6 @@ Values: For possible values see
5 SOHO Server
6 Appliance PC
7 Performance Server
- >7 Reserved
+ 8 Tablet
+ >8 Reserved
== =================
reply other threads:[~2023-03-02 17:49 UTC|newest]
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