video: adf: add informational flags to interfaces

Informational flags don't affect ADF directly but may be useful to
clients.  Currently used to indicate primary and external displays.

Change-Id: I343c7f0148da0869244c8e818350e9855525df85
Signed-off-by: Greg Hackmann <ghackmann@google.com>
diff --git a/include/video/adf.h b/include/video/adf.h
index eb7b9be..82d49fc 100644
--- a/include/video/adf.h
+++ b/include/video/adf.h
@@ -355,6 +355,7 @@
 
 	enum adf_interface_type type;
 	u32 idx;
+	u32 flags;
 
 	wait_queue_head_t vsync_wait;
 	ktime_t vsync_timestamp;
@@ -405,9 +406,10 @@
 		struct device *parent, const struct adf_device_ops *ops,
 		const char *fmt, ...);
 void adf_device_destroy(struct adf_device *dev);
-int __printf(6, 7) adf_interface_init(struct adf_interface *intf,
+int __printf(7, 8) adf_interface_init(struct adf_interface *intf,
 		struct adf_device *dev, enum adf_interface_type type, u32 idx,
-		const struct adf_interface_ops *ops, const char *fmt, ...);
+		u32 flags, const struct adf_interface_ops *ops, const char *fmt,
+		...);
 void adf_interface_destroy(struct adf_interface *intf);
 static inline struct adf_device *adf_interface_parent(
 		struct adf_interface *intf)