mei: bus: Implement driver registration

Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/bus.c

@@ -170,3 +170,29 @@ void mei_cl_remove_device(struct mei_cl_device *device)
 	device_unregister(&device->dev);
 }
 EXPORT_SYMBOL_GPL(mei_cl_remove_device);
+
+int __mei_cl_driver_register(struct mei_cl_driver *driver, struct module *owner)
+{
+	int err;
+
+	driver->driver.name = driver->name;
+	driver->driver.owner = owner;
+	driver->driver.bus = &mei_cl_bus_type;
+
+	err = driver_register(&driver->driver);
+	if (err)
+		return err;
+
+	pr_debug("mei: driver [%s] registered\n", driver->driver.name);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__mei_cl_driver_register);
+
+void mei_cl_driver_unregister(struct mei_cl_driver *driver)
+{
+	driver_unregister(&driver->driver);
+
+	pr_debug("mei: driver [%s] unregistered\n", driver->driver.name);
+}
+EXPORT_SYMBOL_GPL(mei_cl_driver_unregister);

include/linux/mei_cl_bus.h

@@ -17,4 +17,11 @@ struct mei_cl_driver {
 	int (*remove)(struct mei_cl_device *dev);
 };
 
+int __mei_cl_driver_register(struct mei_cl_driver *driver,
+				struct module *owner);
+#define mei_cl_driver_register(driver)             \
+	__mei_cl_driver_register(driver, THIS_MODULE)
+
+void mei_cl_driver_unregister(struct mei_cl_driver *driver);
+
 #endif /* _LINUX_MEI_CL_BUS_H */