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media: v4l2-device.h: always expose mdev

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The mdev field is only present if CONFIG_MEDIA_CONTROLLER is set.
But since we will need to pass the media_device to vb2 and the
control framework it is very convenient to just make this field
available all the time. If CONFIG_MEDIA_CONTROLLER is not set,
then it will just be NULL.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2018-05-03 10:52:51 -04:00 committed by Mauro Carvalho Chehab
parent 3ad3b7a2eb
commit acd14c181f
1 changed files with 1 additions and 3 deletions
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4
include/media/v4l2-device.h
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@ -33,7 +33,7 @@ struct v4l2_ctrl_handler;
* struct v4l2_device - main struct to for V4L2 device drivers
*
* @dev: pointer to struct device.
* @mdev: pointer to struct media_device
* @mdev: pointer to struct media_device, may be NULL.
* @subdevs: used to keep track of the registered subdevs
* @lock: lock this struct; can be used by the driver as well
* if this struct is embedded into a larger struct.
@ -58,9 +58,7 @@ struct v4l2_ctrl_handler;
*/
struct v4l2_device {
struct device *dev;
#if defined(CONFIG_MEDIA_CONTROLLER)
struct media_device *mdev;
#endif
struct list_head subdevs;
spinlock_t lock;
char name[V4L2_DEVICE_NAME_SIZE];