diff mbox series

[v8,3/9] media: Documentation: Update link frequency driver documentation

Message ID 20241217215445.901459-4-sakari.ailus@linux.intel.com
State New
Headers show
Series [v8,1/9] media: v4l: Support passing media pad argument to v4l2_get_link_freq() | expand

Commit Message

Sakari Ailus Dec. 17, 2024, 9:54 p.m. UTC 
Add the get_mbus_config() as the means for conveying the link frequency
towards the receiver drivers.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 Documentation/driver-api/media/tx-rx.rst | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/driver-api/media/tx-rx.rst b/Documentation/driver-api/media/tx-rx.rst
index c71003f74b1c..6f9eba189a9f 100644
--- a/Documentation/driver-api/media/tx-rx.rst
+++ b/Documentation/driver-api/media/tx-rx.rst
@@ -49,6 +49,10 @@  Link frequency
 The :ref:`V4L2_CID_LINK_FREQ <v4l2-cid-link-freq>` control is used to tell the
 receiver the frequency of the bus (i.e. it is not the same as the symbol rate).
 
+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.
+
 ``.enable_streams()`` and ``.disable_streams()`` callbacks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^