mei: bus: Implement bus driver data setter/getter

MEI drivers should be able to carry their private data around.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 2b4b5b3..8dbcb15 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -461,6 +461,18 @@
 }
 EXPORT_SYMBOL_GPL(mei_cl_register_event_cb);
 
+void *mei_cl_get_drvdata(const struct mei_cl_device *device)
+{
+	return dev_get_drvdata(&device->dev);
+}
+EXPORT_SYMBOL_GPL(mei_cl_get_drvdata);
+
+void mei_cl_set_drvdata(struct mei_cl_device *device, void *data)
+{
+	dev_set_drvdata(&device->dev, data);
+}
+EXPORT_SYMBOL_GPL(mei_cl_set_drvdata);
+
 void mei_cl_bus_rx_event(struct mei_cl *cl)
 {
 	struct mei_cl_device *device = cl->device;