[S390] pm: css bus power management callbacks
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 57ebf12..9763eee 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -70,6 +70,11 @@
* @probe: function called on probe
* @remove: function called on remove
* @shutdown: called at device shutdown
+ * @prepare: prepare for pm state transition
+ * @complete: undo work done in @prepare
+ * @freeze: callback for freezing during hibernation snapshotting
+ * @thaw: undo work done in @freeze
+ * @restore: callback for restoring after hibernation
* @name: name of the device driver
*/
struct css_driver {
@@ -82,6 +87,11 @@
int (*probe)(struct subchannel *);
int (*remove)(struct subchannel *);
void (*shutdown)(struct subchannel *);
+ int (*prepare) (struct subchannel *);
+ void (*complete) (struct subchannel *);
+ int (*freeze)(struct subchannel *);
+ int (*thaw) (struct subchannel *);
+ int (*restore)(struct subchannel *);
const char *name;
};