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Hibernation: Introduce begin() and end() callbacks

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Introduce global hibernation callback .end() and rename global
hibernation callback .start() to .begin(), in analogy with the
recent modifications of the global suspend callbacks.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rafael J. Wysocki
2008-01-08 00:08:44 +01:00
committed by Len Brown
parent 60417f5976
commit caea99ef33
3 changed files with 45 additions and 16 deletions
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kernel/power/disk.c
+24 -9
View File
@@ -54,8 +54,8 @@ static struct platform_hibernation_ops *hibernation_ops;
void hibernation_set_ops(struct platform_hibernation_ops *ops)
{
if (ops && !(ops->start && ops->pre_snapshot && ops->finish
&& ops->prepare && ops->enter && ops->pre_restore
if (ops && !(ops->begin && ops->end && ops->pre_snapshot
&& ops->prepare && ops->finish && ops->enter && ops->pre_restore
&& ops->restore_cleanup)) {
WARN_ON(1);
return;
@@ -100,14 +100,25 @@ static int hibernation_test(int level) { return 0; }
#endif /* !CONFIG_PM_DEBUG */
/**
* platform_start - tell the platform driver that we're starting
* platform_begin - tell the platform driver that we're starting
* hibernation
*/
static int platform_start(int platform_mode)
static int platform_begin(int platform_mode)
{
return (platform_mode && hibernation_ops) ?
hibernation_ops->start() : 0;
hibernation_ops->begin() : 0;
}
/**
* platform_end - tell the platform driver that we've entered the
* working state
*/
static void platform_end(int platform_mode)
{
if (platform_mode && hibernation_ops)
hibernation_ops->end();
}
/**
@@ -237,9 +248,9 @@ int hibernation_snapshot(int platform_mode)
if (error)
return error;
error = platform_start(platform_mode);
error = platform_begin(platform_mode);
if (error)
return error;
goto Close;
suspend_console();
error = device_suspend(PMSG_FREEZE);
@@ -272,6 +283,8 @@ int hibernation_snapshot(int platform_mode)
device_resume();
Resume_console:
resume_console();
Close:
platform_end(platform_mode);
return error;
}
@@ -373,9 +386,9 @@ int hibernation_platform_enter(void)
* hibernation_ops->finish() before saving the image, so we should let
* the firmware know that we're going to enter the sleep state after all
*/
error = hibernation_ops->start();
error = hibernation_ops->begin();
if (error)
return error;
goto Close;
suspend_console();
error = device_suspend(PMSG_SUSPEND);
@@ -409,6 +422,8 @@ int hibernation_platform_enter(void)
device_resume();
Resume_console:
resume_console();
Close:
hibernation_ops->end();
return error;
}