185 	buf_cfg.xb_dev = front_info->xb_dev;  in xen_drm_front_dbuf_create()
477 		xenbus_switch_state(front_info->xb_dev,  in xen_drm_drv_release()
529 	struct device *dev = &front_info->xb_dev->dev;  in xen_drm_drv_init()
612 		xenbus_switch_state(front_info->xb_dev,  in xen_drm_drv_fini()
647 	xenbus_switch_state(front_info->xb_dev, XenbusStateReconfiguring);  in displback_disconnect()
652 static void displback_changed(struct xenbus_device *xb_dev,  in displback_changed()  argument
655 	struct xen_drm_front_info *front_info = dev_get_drvdata(&xb_dev->dev);  in displback_changed()
660 		  xenbus_strstate(xb_dev->state));  in displback_changed()
671 		if (xb_dev->state == XenbusStateReconfiguring)  in displback_changed()
679 		if (xb_dev->state == XenbusStateReconfiguring)  in displback_changed()
684 		if (xb_dev->state != XenbusStateInitialising)  in displback_changed()
689 			xenbus_dev_fatal(xb_dev, ret, "initializing frontend");  in displback_changed()
691 			xenbus_switch_state(xb_dev, XenbusStateInitialised);  in displback_changed()
695 		if (xb_dev->state != XenbusStateInitialised)  in displback_changed()
701 			xenbus_dev_fatal(xb_dev, ret, "connecting backend");  in displback_changed()
703 			xenbus_switch_state(xb_dev, XenbusStateConnected);  in displback_changed()
718 		if (xb_dev->state == XenbusStateClosed)  in displback_changed()
726 static int xen_drv_probe(struct xenbus_device *xb_dev,  in xen_drv_probe()  argument
730 	struct device *dev = &xb_dev->dev;  in xen_drv_probe()
747 	front_info = devm_kzalloc(&xb_dev->dev,  in xen_drv_probe()
752 	front_info->xb_dev = xb_dev;  in xen_drv_probe()
755 	dev_set_drvdata(&xb_dev->dev, front_info);  in xen_drv_probe()
757 	return xenbus_switch_state(xb_dev, XenbusStateInitialising);  in xen_drv_probe()
778 	while ((xenbus_read_unsigned(front_info->xb_dev->otherend, "state",  in xen_drv_remove()
786 		state = xenbus_read_unsigned(front_info->xb_dev->otherend,  in xen_drv_remove()