media: v4l2-dev: convert VFL_TYPE_* into an enum

Using enums makes easier to document, as it can use kernel-doc
markups. It also allows cross-referencing, with increases the
kAPI readability.

Please notice that now cx88_querycap() has to have a default for
the VFL type, as there are more types than supported by the driver.

Acked-By: Mike Isely <isely@pobox.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index c647ba648805..d5e0e536ef04 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -102,7 +102,7 @@ static DECLARE_BITMAP(devnode_nums[VFL_TYPE_MAX], VIDEO_NUM_DEVICES);
 
 #ifdef CONFIG_VIDEO_FIXED_MINOR_RANGES
 /* Return the bitmap corresponding to vfl_type. */
-static inline unsigned long *devnode_bits(int vfl_type)
+static inline unsigned long *devnode_bits(enum vfl_devnode_type vfl_type)
 {
 	/* Any types not assigned to fixed minor ranges must be mapped to
 	   one single bitmap for the purposes of finding a free node number
@@ -113,7 +113,7 @@ static inline unsigned long *devnode_bits(int vfl_type)
 }
 #else
 /* Return the bitmap corresponding to vfl_type. */
-static inline unsigned long *devnode_bits(int vfl_type)
+static inline unsigned long *devnode_bits(enum vfl_devnode_type vfl_type)
 {
 	return devnode_nums[vfl_type];
 }
@@ -821,8 +821,10 @@ static int video_register_media_controller(struct video_device *vdev, int type)
 	return 0;
 }
 
-int __video_register_device(struct video_device *vdev, int type, int nr,
-		int warn_if_nr_in_use, struct module *owner)
+int __video_register_device(struct video_device *vdev,
+			    enum vfl_devnode_type type,
+			    int nr, int warn_if_nr_in_use,
+			    struct module *owner)
 {
 	int i = 0;
 	int ret;