[media] media: Move media_device link_notify operation to an ops structure
This will allow adding new operations without increasing the
media_device structure size for drivers that don't implement any media
device operation.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/include/media/media-device.h b/include/media/media-device.h
index 481dd6c..ef93e21 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -49,6 +49,16 @@
};
/**
+ * struct media_device_ops - Media device operations
+ * @link_notify: Link state change notification callback. This callback is
+ * called with the graph_mutex held.
+ */
+struct media_device_ops {
+ int (*link_notify)(struct media_link *link, u32 flags,
+ unsigned int notification);
+};
+
+/**
* struct media_device - Media device
* @dev: Parent device
* @devnode: Media device node
@@ -80,8 +90,7 @@
* @enable_source: Enable Source Handler function pointer
* @disable_source: Disable Source Handler function pointer
*
- * @link_notify: Link state change notification callback. This callback is
- * called with the graph_mutex held.
+ * @ops: Operation handler callbacks
*
* This structure represents an abstract high-level media device. It allows easy
* access to entities and provides basic media device-level support. The
@@ -150,8 +159,7 @@
struct media_pipeline *pipe);
void (*disable_source)(struct media_entity *entity);
- int (*link_notify)(struct media_link *link, u32 flags,
- unsigned int notification);
+ const struct media_device_ops *ops;
};
/* We don't need to include pci.h or usb.h here */