[power] Move suspend()/resume() methods.

Instead of putting them in struct device_driver (which few, if any drivers
use directly), put them in the controlling bus_type of the device (which
are currently responsible for claiming the methods and forwarding the calls
to the bus-specific driver anyway).

This will save 8 bytes per driver instance, which isn't that much, but it's
something. It also makes it more obvious to the reader what is going on. 
And, it makes for easier bus-level defaults in the case the device has no
driver attached. 

The old calls remain until all instances have been fixed up.

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index c99ad50c6784..8d6266f2e3c3 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -58,7 +58,8 @@ struct bus_type {
 	struct device * (*add)	(struct device * parent, char * bus_id);
 	int		(*hotplug) (struct device *dev, char **envp, 
 				    int num_envp, char *buffer, int buffer_size);
-
+	int		(*suspend)(struct device * dev, u32 state);
+	int		(*resume)(struct device * dev);
 };
 
 extern int bus_register(struct bus_type * bus);