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media: vimc: documentation for lens

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Add documentation for vimc-lens.
Add a lens into the vimc topology graph.

Signed-off-by: Yunke Cao <yunkec@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Yunke Cao 2022-06-29 03:06:30 +01:00 committed by Mauro Carvalho Chehab
parent ee8dadd770
commit 39146d1141
2 changed files with 23 additions and 0 deletions
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4
Documentation/admin-guide/media/vimc.dot
View file

@ -5,9 +5,13 @@ digraph board {
n00000001 [label="{{} | Sensor A\n/dev/v4l-subdev0 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
n00000001:port0 -> n00000005:port0 [style=bold]
n00000001:port0 -> n0000000b [style=bold]
n00000001 -> n00000002
n00000002 [label="{{} | Lens A\n/dev/v4l-subdev5 | {<port0>}}", shape=Mrecord, style=filled, fillcolor=green]
n00000003 [label="{{} | Sensor B\n/dev/v4l-subdev1 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
n00000003:port0 -> n00000008:port0 [style=bold]
n00000003:port0 -> n0000000f [style=bold]
n00000003 -> n00000004
n00000004 [label="{{} | Lens B\n/dev/v4l-subdev6 | {<port0>}}", shape=Mrecord, style=filled, fillcolor=green]
n00000005 [label="{{<port0> 0} | Debayer A\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
n00000005:port1 -> n00000015:port0
n00000008 [label="{{<port0> 0} | Debayer B\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

19
Documentation/admin-guide/media/vimc.rst
View file

@ -53,6 +53,25 @@ vimc-sensor:
* 1 Pad source
vimc-lens:
Ancillary lens for a sensor. Supports auto focus control. Linked to
a vimc-sensor using an ancillary link. The lens supports FOCUS_ABSOLUTE
control.
.. code-block:: bash
media-ctl -p
...
- entity 28: Lens A (0 pad, 0 link)
type V4L2 subdev subtype Lens flags 0
device node name /dev/v4l-subdev6
- entity 29: Lens B (0 pad, 0 link)
type V4L2 subdev subtype Lens flags 0
device node name /dev/v4l-subdev7
v4l2-ctl -d /dev/v4l-subdev7 -C focus_absolute
focus_absolute: 0
vimc-debayer:
Transforms images in bayer format into a non-bayer format.
Exposes: