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[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>
This commit is contained in:
Shuah Khan 2015-06-05 17:11:54 -03:00 committed by Mauro Carvalho Chehab
parent d062f91193
commit e576d60bb2
2 changed files with 31 additions and 0 deletions
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4
drivers/media/media-device.c
View File

@ -30,6 +30,8 @@
#include <media/media-devnode.h>
#include <media/media-entity.h>
#ifdef CONFIG_MEDIA_CONTROLLER
/* -----------------------------------------------------------------------------
* Userspace API
*/
@ -495,3 +497,5 @@ struct media_device *media_device_find_devres(struct device *dev)
return devres_find(dev, media_device_release_devres, NULL, NULL);
}
EXPORT_SYMBOL_GPL(media_device_find_devres);
#endif /* CONFIG_MEDIA_CONTROLLER */

27
include/media/media-device.h
View File

@ -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