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| author |   Sakari Ailus <sakari.ailus@linux.intel.com> | 2019-02-28 08:25:28 -0500 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-25 08:03:03 -0400 |
| commit | 820342aca05188c9af4b468d6c41b3327161f7ad (patch) | |
| tree | 4a7dcf5e28bb01b8e55941ac2bd673971db271ce /include/media/v4l2-async.h | |
| parent | media: v4l2-async: Get fwnode reference when putting it to the notifier's list (diff) | |
| download | wireguard-linux-820342aca05188c9af4b468d6c41b3327161f7ad.tar.xz wireguard-linux-820342aca05188c9af4b468d6c41b3327161f7ad.zip | |
media: v4l2-async: Add v4l2_async_notifier_add_fwnode_remote_subdev
v4l2_async_notifier_add_fwnode_remote_subdev is a convenience function for
parsing information on V4L2 fwnode subdevs.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'include/media/v4l2-async.h')
| -rw-r--r-- | include/media/v4l2-async.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h index a95f7fd8969e..8319284c93cb 100644 --- a/include/media/v4l2-async.h +++ b/include/media/v4l2-async.h @@ -182,6 +182,31 @@ v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier, unsigned int asd_struct_size); /** + * v4l2_async_notifier_add_fwnode_remote_subdev - Allocate and add a fwnode + * remote async subdev to the + * notifier's master asd_list. + * + * @notif: pointer to &struct v4l2_async_notifier + * @endpoint: local endpoint pointing to the remote sub-device to be matched + * @asd: Async sub-device struct allocated by the caller. The &struct + * v4l2_async_subdev shall be the first member of the driver's async + * sub-device struct, i.e. both begin at the same memory address. + * + * Gets the remote endpoint of a given local endpoint, set it up for fwnode + * matching and adds the async sub-device to the notifier's @asd_list. The + * function also gets a reference of the fwnode which is released later at + * notifier cleanup time. + * + * This is just like @v4l2_async_notifier_add_fwnode_subdev, but with the + * exception that the fwnode refers to a local endpoint, not the remote one, and + * the function relies on the caller to allocate the async sub-device struct. + */ +int +v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif, + struct fwnode_handle *endpoint, + struct v4l2_async_subdev *asd); + +/** * v4l2_async_notifier_add_i2c_subdev - Allocate and add an i2c async * subdev to the notifier's master asd_list. * |