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authorRafael J. Wysocki <rjw@sisk.pl>2008-01-08 02:08:44 +0300
committerLen Brown <len.brown@intel.com>2008-02-02 02:30:58 +0300
commitcaea99ef339af8e07cda8d03fa415e4b8820f400 (patch)
tree46b975f61a3409a30fc6a7c15a6db2c7f6d9876b /include/linux/suspend.h
parent60417f5976df029227450b46d7fa6f0e9b1e654c (diff)
downloadlinux-caea99ef339af8e07cda8d03fa415e4b8820f400.tar.xz
Hibernation: Introduce begin() and end() callbacks
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>
Diffstat (limited to 'include/linux/suspend.h')
-rw-r--r--include/linux/suspend.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index a0b1dbb5919f..646ce2d068d4 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -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);