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PM: issue PM_EVENT_PRETHAW

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This patch is the first of this series that should actually change any
behavior ...  by issuing the new event, now tha the rest of the kernel is
prepared to receive it.

This converts the PM core to issue the new PRETHAW message, which the rest of
the kernel is now ready to receive.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell
2006-08-14 23:11:08 -07:00
committed by Greg Kroah-Hartman
parent 185849991d
commit f1cc0a894c
4 changed files with 12 additions and 4 deletions
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9
kernel/power/swsusp.c
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@ -248,6 +248,9 @@ int swsusp_suspend(void)
restore_processor_state();
Restore_highmem:
restore_highmem();
/* NOTE: device_power_up() is just a resume() for devices
* that suspended with irqs off ... no overall powerup.
*/
device_power_up();
Enable_irqs:
local_irq_enable();
@ -257,8 +260,12 @@ Enable_irqs:
int swsusp_resume(void)
{
int error;
local_irq_disable();
if (device_power_down(PMSG_FREEZE))
/* NOTE: device_power_down() is just a suspend() with irqs off;
* it has no special "power things down" semantics
*/
if (device_power_down(PMSG_PRETHAW))
printk(KERN_ERR "Some devices failed to power down, very bad\n");
/* We'll ignore saved state, but this gets preempt count (etc) right */
save_processor_state();