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Diffstat (limited to 'kernel/power/disk.c')
-rw-r--r--kernel/power/disk.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index eb72255b5c86..d17bb14bce7b 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -54,8 +54,9 @@ static struct hibernation_ops *hibernation_ops;
void hibernation_set_ops(struct hibernation_ops *ops)
{
- if (ops && !(ops->prepare && ops->enter && ops->finish
- && ops->pre_restore && ops->restore_cleanup)) {
+ if (ops && !(ops->start && ops->pre_snapshot && ops->finish
+ && ops->prepare && ops->enter && ops->pre_restore
+ && ops->restore_cleanup)) {
WARN_ON(1);
return;
}
@@ -69,16 +70,26 @@ void hibernation_set_ops(struct hibernation_ops *ops)
mutex_unlock(&pm_mutex);
}
+/**
+ * platform_start - tell the platform driver that we're starting
+ * hibernation
+ */
+
+static int platform_start(int platform_mode)
+{
+ return (platform_mode && hibernation_ops) ?
+ hibernation_ops->start() : 0;
+}
/**
- * platform_prepare - prepare the machine for hibernation using the
+ * platform_pre_snapshot - prepare the machine for hibernation using the
* platform driver if so configured and return an error code if it fails
*/
-static int platform_prepare(int platform_mode)
+static int platform_pre_snapshot(int platform_mode)
{
return (platform_mode && hibernation_ops) ?
- hibernation_ops->prepare() : 0;
+ hibernation_ops->pre_snapshot() : 0;
}
/**
@@ -135,12 +146,16 @@ int hibernation_snapshot(int platform_mode)
if (error)
return error;
+ error = platform_start(platform_mode);
+ if (error)
+ return error;
+
suspend_console();
error = device_suspend(PMSG_FREEZE);
if (error)
goto Resume_console;
- error = platform_prepare(platform_mode);
+ error = platform_pre_snapshot(platform_mode);
if (error)
goto Resume_devices;