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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2023-05-05 13:57:29 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-07-28 10:38:05 +0200 |
| commit | 95a188168b7af7b05e2fd5105c5c09da9a3e92ac (patch) | |
| tree | 3d3e6f86962972082a877b3411eb1697d3bf6e5b /Documentation/driver-api | |
| parent | 4232c5df51300c74a318a90a364f0e084f58c9df (diff) | |
| download | linux-95a188168b7af7b05e2fd5105c5c09da9a3e92ac.tar.gz | |
media: Documentation: v4l: Document missing async subdev function
Also v4l2_async_nf_add_fwnode() may be used to add an async sub-device
descriptor to a notifier. Document this. Also remove a redundant sentence.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/media/v4l2-subdev.rst | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst index 646bd00068be2a..e463ab4a3413ad 100644 --- a/Documentation/driver-api/media/v4l2-subdev.rst +++ b/Documentation/driver-api/media/v4l2-subdev.rst @@ -206,15 +206,11 @@ takes two arguments: a pointer to struct :c:type:`v4l2_device` and a pointer to struct :c:type:`v4l2_async_notifier`. Before registering the notifier, bridge drivers must do two things: first, the -notifier must be initialized using the :c:func:`v4l2_async_nf_init`. -Second, bridge drivers can then begin to form a list of subdevice descriptors -that the bridge device needs for its operation. Several functions are available -to add subdevice descriptors to a notifier, depending on the type of device and -the needs of the driver. - -:c:func:`v4l2_async_nf_add_fwnode_remote` and -:c:func:`v4l2_async_nf_add_i2c` are for bridge and ISP drivers for -registering their async sub-devices with the notifier. +notifier must be initialized using the :c:func:`v4l2_async_nf_init`. Second, +bridge drivers can then begin to form a list of subdevice descriptors that the +bridge device needs for its operation. :c:func:`v4l2_async_nf_add_fwnode`, +:c:func:`v4l2_async_nf_add_fwnode_remote` and :c:func:`v4l2_async_nf_add_i2c` +are available for that purpose. Asynchronous sub-device registration helper for camera sensor drivers ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |