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PM: Add missing "freeze" state

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Fix descriptions of /sys/power/state in the documentation and in
a code comment.

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Geert Uytterhoeven 2014-03-11 12:08:11 +01:00 committed by Rafael J. Wysocki
parent 4d4348202b
commit af02b5fdb1
2 changed files with 5 additions and 4 deletions
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5
Documentation/ABI/testing/sysfs-power
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@ -12,8 +12,9 @@ Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/state file controls the system power state.
Reading from this file returns what states are supported,
which is hard-coded to 'standby' (Power-On Suspend), 'mem'
(Suspend-to-RAM), and 'disk' (Suspend-to-Disk).
which is hard-coded to 'freeze' (Low-Power Idle), 'standby'
(Power-On Suspend), 'mem' (Suspend-to-RAM), and 'disk'
(Suspend-to-Disk).
Writing to this file one of these strings causes the system to
transition into that state. Please see the file

4
kernel/power/main.c
View File

@ -282,8 +282,8 @@ struct kobject *power_kobj;
* state - control system power state.
*
* show() returns what states are supported, which is hard-coded to
* 'standby' (Power-On Suspend), 'mem' (Suspend-to-RAM), and
* 'disk' (Suspend-to-Disk).
* 'freeze' (Low-Power Idle), 'standby' (Power-On Suspend),
* 'mem' (Suspend-to-RAM), and 'disk' (Suspend-to-Disk).
*
* store() accepts one of those strings, translates it into the
* proper enumerated value, and initiates a suspend transition.