X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fmedia%2Fmedia-device.h;h=12155a9596c49c89350f1cdadbe6f1f301e27d10;hb=2e032852245b3dcfe5461d7353e34eb6da095ccf;hp=eaade9815bb63fa885ce25b55b5856ee017a1550;hpb=21e98932dcf15fe7eabd09a35f2020e0dd86b685;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/media/media-device.h b/include/media/media-device.h
index eaade9815bb6..12155a9596c4 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -45,6 +45,7 @@ struct device;
  * @entities:	List of registered entities
  * @lock:	Entities list lock
  * @graph_mutex: Entities graph operation lock
+ * @link_notify: Link state change notification callback
  *
  * This structure represents an abstract high-level media device. It allows easy
  * access to entities and provides basic media device-level support. The
@@ -75,10 +76,14 @@ struct media_device {
 	/* Serializes graph operations. */
 	struct mutex graph_mutex;
 
-	int (*link_notify)(struct media_pad *source,
-			   struct media_pad *sink, u32 flags);
+	int (*link_notify)(struct media_link *link, u32 flags,
+			   unsigned int notification);
 };
 
+/* Supported link_notify @notification values. */
+#define MEDIA_DEV_NOTIFY_PRE_LINK_CH	0
+#define MEDIA_DEV_NOTIFY_POST_LINK_CH	1
+
 /* media_devnode to media_device */
 #define to_media_device(node) container_of(node, struct media_device, devnode)