[media] media: define Media Controller API when CONFIG_MEDIA_CONTROLLER enabled

Change to define Media Controller API when CONFIG_MEDIA_CONTROLLER
is enabled. Define stubs for CONFIG_MEDIA_CONTROLLER disabled case.
This will help avoid drivers needing to enclose Media Controller
code within ifdef CONFIG_MEDIA_CONTROLLER block.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/media/media-device.h b/include/media/media-device.h
index 22792cd5b1d1..a44f18fdf321 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -80,6 +80,8 @@ struct media_device {
                            unsigned int notification);
 };
 
+#ifdef CONFIG_MEDIA_CONTROLLER
+
 /* Supported link_notify @notification values. */
 #define MEDIA_DEV_NOTIFY_PRE_LINK_CH    0
 #define MEDIA_DEV_NOTIFY_POST_LINK_CH   1
@@ -102,4 +104,29 @@ struct media_device *media_device_find_devres(struct device *dev);
 #define media_device_for_each_entity(entity, mdev)                      \
         list_for_each_entry(entity, &(mdev)->entities, list)
 
+#else
+static inline int media_device_register(struct media_device *mdev)
+{
+        return 0;
+}
+static inline void media_device_unregister(struct media_device *mdev)
+{
+}
+static inline int media_device_register_entity(struct media_device *mdev,
+                                                struct media_entity *entity)
+{
+        return 0;
+}
+static inline void media_device_unregister_entity(struct media_entity *entity)
+{
+}
+static inline struct media_device *media_device_get_devres(struct device *dev)
+{
+        return NULL;
+}
+static inline struct media_device *media_device_find_devres(struct device *dev)
+{
+        return NULL;
+}
+#endif /* CONFIG_MEDIA_CONTROLLER */
 #endif