diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index bb9840f..7890b55 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -272,6 +272,8 @@
 
 	struct mutex clients_lock;
 	struct list_head clients;
+
+	bool bound;
 };
 
 static inline struct host1x_device *to_host1x_device(struct device *dev)