We'll need unique IDs for graph objects and a way to associate them with the media interface.
So, add an atomic var to be used to create unique IDs and a list to store such objects.
Signed-off-by: Mauro Carvalho Chehab mchehab@osg.samsung.com
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index 7b39440192d6..e627b0b905ad 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -396,6 +396,10 @@ int __must_check __media_device_register(struct media_device *mdev, return ret; }
+ /* Initialize media graph object list and ID */ + atomic_set(&mdev->last_obj_id, 0); + INIT_LIST_HEAD(&mdev->object_list); + return 0; } EXPORT_SYMBOL_GPL(__media_device_register); diff --git a/include/media/media-device.h b/include/media/media-device.h index 6e6db78f1ee2..a9d546716e49 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -78,6 +78,10 @@ struct media_device {
int (*link_notify)(struct media_link *link, u32 flags, unsigned int notification); + + /* Used by media_graph stuff */ + atomic_t last_obj_id; + struct list_head object_list; };
/* Supported link_notify @notification values. */