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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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14
include/linux/suspend.h
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@@ -136,14 +136,17 @@ extern void mark_free_pages(struct zone *zone);
/**
* struct platform_hibernation_ops - hibernation platform support
*
* The methods in this structure allow a platform to override the default
* mechanism of shutting down the machine during a hibernation transition.
* The methods in this structure allow a platform to carry out special
* operations required by it during a hibernation transition.
*
* All three methods must be assigned.
* All the methods below must be implemented.
*
* @start: Tell the platform driver that we're starting hibernation.
* @begin: Tell the platform driver that we're starting hibernation.
* Called right after shrinking memory and before freezing devices.
*
* @end: Called by the PM core right after resuming devices, to indicate to
* the platform that the system has returned to the working state.
*
* @pre_snapshot: Prepare the platform for creating the hibernation image.
* Called right after devices have been frozen and before the nonboot
* CPUs are disabled (runs with IRQs on).
@@ -178,7 +181,8 @@ extern void mark_free_pages(struct zone *zone);
* thawing devices (runs with IRQs on).
*/
struct platform_hibernation_ops {
int (*start)(void);
int (*begin)(void);
void (*end)(void);
int (*pre_snapshot)(void);
void (*finish)(void);
int (*prepare)(void);