diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2013-07-19 12:21:29 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-07-30 15:52:32 -0300 |
| commit | e7359f8e660882fb2168609638163561eb2f50f0 (patch) | |
| tree | f40223db11d3de96d1315023530880d33a844dca /drivers/media/v4l2-core/v4l2-async.c | |
| parent | cfca7644d7959e1f50cb132306d1557bf6c2da57 (diff) | |
[media] V4L: Add V4L2_ASYNC_MATCH_OF subdev matching type
Add support for matching by device_node pointer. This allows
the notifier user to simply pass a list of device_node pointers
corresponding to sub-devices.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-async.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-async.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 86934ca73357..9f91013a600d 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -39,6 +39,11 @@ static bool match_devname(struct device *dev, struct v4l2_async_subdev *asd) return !strcmp(asd->match.device_name.name, dev_name(dev)); } +static bool match_of(struct device *dev, struct v4l2_async_subdev *asd) +{ + return dev->of_node == asd->match.of.node; +} + static LIST_HEAD(subdev_list); static LIST_HEAD(notifier_list); static DEFINE_MUTEX(list_lock); @@ -66,6 +71,9 @@ static struct v4l2_async_subdev *v4l2_async_belongs(struct v4l2_async_notifier * case V4L2_ASYNC_MATCH_I2C: match = match_i2c; break; + case V4L2_ASYNC_MATCH_OF: + match = match_of; + break; default: /* Cannot happen, unless someone breaks us */ WARN_ON(true); @@ -145,6 +153,7 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, case V4L2_ASYNC_MATCH_CUSTOM: case V4L2_ASYNC_MATCH_DEVNAME: case V4L2_ASYNC_MATCH_I2C: + case V4L2_ASYNC_MATCH_OF: break; default: dev_err(notifier->v4l2_dev ? notifier->v4l2_dev->dev : NULL, |