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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: Description:
The /sys/power/state file controls the system power state. The /sys/power/state file controls the system power state.
Reading from this file returns what states are supported, Reading from this file returns what states are supported,
which is hard-coded to 'standby' (Power-On Suspend), 'mem' which is hard-coded to 'freeze' (Low-Power Idle), 'standby'
(Suspend-to-RAM), and 'disk' (Suspend-to-Disk). (Power-On Suspend), 'mem' (Suspend-to-RAM), and 'disk'
(Suspend-to-Disk).
Writing to this file one of these strings causes the system to Writing to this file one of these strings causes the system to
transition into that state. Please see the file 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. * state - control system power state.
* *
* show() returns what states are supported, which is hard-coded to * show() returns what states are supported, which is hard-coded to
* 'standby' (Power-On Suspend), 'mem' (Suspend-to-RAM), and * 'freeze' (Low-Power Idle), 'standby' (Power-On Suspend),
* 'disk' (Suspend-to-Disk). * 'mem' (Suspend-to-RAM), and 'disk' (Suspend-to-Disk).
* *
* store() accepts one of those strings, translates it into the * store() accepts one of those strings, translates it into the
* proper enumerated value, and initiates a suspend transition. * proper enumerated value, and initiates a suspend transition.