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media: Documentation: Receiver drivers should call v4l2_get_link_freq()

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Document that receiver drivers should call v4l2_get_link_freq() to obtain
the link frequency.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Sakari Ailus
2024-12-16 10:26:22 +02:00
committed by Hans Verkuil
parent 28e6cd53f8
commit 015853f0bd
1 changed files with 3 additions and 0 deletions
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Documentation/driver-api/media/tx-rx.rst
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@@ -53,6 +53,9 @@ Drivers that do not have user-configurable link frequency should report it
through the ``.get_mbus_config()`` subdev pad operation, in the ``link_freq``
field of struct v4l2_mbus_config, instead of through controls.
Receiver drivers should use :c:func:`v4l2_get_link_freq` helper to obtain the
link frequency from the transmitter sub-device.
``.enable_streams()`` and ``.disable_streams()`` callbacks
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^