Re: [PATCH 1/1] Documentation: media: Rework camera sensor, CSI-2, async doc syntax

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Hi Sakari,

On 08/02/2021 10:44, Sakari Ailus wrote:
> Improve syntax used for camera sensor, CSI-2 ReST and V4L2 async syntax
> for better compatibility with newer Sphinx versions and use function
> references where applicable.
> 
> Not all internal references still work as kerneldoc doesn't appear to
> support macros the way they are now used by v4l2-async.
> 

Do you mean that with this some references will no longer
highlight/link, where they used to? or that they no longer do, so this
fixes them?

The changes below look consistent and intentional though:

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>

> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> ---
>  .../driver-api/media/camera-sensor.rst        |  2 +-
>  Documentation/driver-api/media/csi2.rst       | 18 +++++------
>  include/media/v4l2-async.h                    | 30 +++++++++----------
>  3 files changed, 24 insertions(+), 26 deletions(-)
> 
> diff --git a/Documentation/driver-api/media/camera-sensor.rst b/Documentation/driver-api/media/camera-sensor.rst
> index 4e2efa6e8fa1..2e3d87052f0e 100644
> --- a/Documentation/driver-api/media/camera-sensor.rst
> +++ b/Documentation/driver-api/media/camera-sensor.rst
> @@ -137,7 +137,7 @@ general, the device must be powered on at least when its registers are being
>  accessed and when it is streaming.
>  
>  Existing camera sensor drivers may rely on the old
> -:c:type:`v4l2_subdev_core_ops`->s_power() callback for bridge or ISP drivers to
> +struct v4l2_subdev_core_ops->s_power() callback for bridge or ISP drivers to
>  manage their power state. This is however **deprecated**. If you feel you need
>  to begin calling an s_power from an ISP or a bridge driver, instead please add
>  runtime PM support to the sensor driver you are using. Likewise, new drivers
> diff --git a/Documentation/driver-api/media/csi2.rst b/Documentation/driver-api/media/csi2.rst
> index c79df33bdeaa..f91f82821575 100644
> --- a/Documentation/driver-api/media/csi2.rst
> +++ b/Documentation/driver-api/media/csi2.rst
> @@ -22,13 +22,13 @@ Transmitter drivers
>  CSI-2 transmitter, such as a sensor or a TV tuner, drivers need to provide the
>  CSI-2 receiver with information on the CSI-2 bus configuration. These include
>  the ``V4L2_CID_LINK_FREQ`` control and
> -(:c:type:`v4l2_subdev_video_ops`->s_stream() callback). These interface elements
> +(struct v4l2_subdev_video_ops->s_stream() callback). These interface elements
>  must be present on the sub-device representing the CSI-2 transmitter.
>  
>  The ``V4L2_CID_LINK_FREQ`` control is used to tell the receiver driver the
> -frequency (and not the symbol rate) of the link. The
> -:c:type:`v4l2_subdev_video_ops`->s_stream() callback provides an ability to
> -start and stop the stream.
> +frequency (and not the symbol rate) of the link. The struct
> +v4l2_subdev_video_ops->s_stream() callback provides an ability to start and stop
> +the stream.
>  
>  The pixel rate on the bus is calculated as follows::
>  
> @@ -83,12 +83,10 @@ cases.
>  Receiver drivers
>  ----------------
>  
> -Before the receiver driver may enable the CSI-2 transmitter by using
> -the :c:type:`v4l2_subdev_video_ops`->s_stream(), it must have powered
> -the transmitter up by using the
> -:c:type:`v4l2_subdev_core_ops`->s_power() callback. This may take
> -place either indirectly by using :c:func:`v4l2_pipeline_pm_get` or
> -directly.
> +Before the receiver driver may enable the CSI-2 transmitter by using the struct
> +v4l2_subdev_video_ops->s_stream(), it must have powered the transmitter up by
> +using the struct v4l2_subdev_core_ops->s_power() callback. This may take place
> +either indirectly by using v4l2_pipeline_pm_get() or directly.
>  
>  Formats
>  -------
> diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
> index 6f22daa6f067..741efd8b298a 100644
> --- a/include/media/v4l2-async.h
> +++ b/include/media/v4l2-async.h
> @@ -129,11 +129,11 @@ void v4l2_async_debug_init(struct dentry *debugfs_dir);
>   *
>   * This function initializes the notifier @asd_list. It must be called
>   * before adding a subdevice to a notifier, using one of:
> - * @v4l2_async_notifier_add_fwnode_remote_subdev,
> - * @v4l2_async_notifier_add_fwnode_subdev,
> - * @v4l2_async_notifier_add_i2c_subdev,
> - * @__v4l2_async_notifier_add_subdev or
> - * @v4l2_async_notifier_parse_fwnode_endpoints.
> + * v4l2_async_notifier_add_fwnode_remote_subdev(),
> + * v4l2_async_notifier_add_fwnode_subdev(),
> + * v4l2_async_notifier_add_i2c_subdev(),
> + * __v4l2_async_notifier_add_subdev() or
> + * v4l2_async_notifier_parse_fwnode_endpoints().
>   */
>  void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier);
>  
> @@ -145,9 +145,9 @@ void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier);
>   * @asd: pointer to &struct v4l2_async_subdev
>   *
>   * \warning: Drivers should avoid using this function and instead use one of:
> - * @v4l2_async_notifier_add_fwnode_subdev,
> - * @v4l2_async_notifier_add_fwnode_remote_subdev or
> - * @v4l2_async_notifier_add_i2c_subdev.
> + * v4l2_async_notifier_add_fwnode_subdev(),
> + * v4l2_async_notifier_add_fwnode_remote_subdev() or
> + * v4l2_async_notifier_add_i2c_subdev().
>   *
>   * Call this function before registering a notifier to link the provided @asd to
>   * the notifiers master @asd_list. The @asd must be allocated with k*alloc() as
> @@ -198,7 +198,7 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
>   * 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
> + * 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.
>   */
>  struct v4l2_async_subdev *
> @@ -267,13 +267,13 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier);
>   * sub-devices allocated for the purposes of the notifier but not the notifier
>   * itself. The user is responsible for calling this function to clean up the
>   * notifier after calling
> - * @v4l2_async_notifier_add_fwnode_remote_subdev,
> - * @v4l2_async_notifier_add_fwnode_subdev,
> - * @v4l2_async_notifier_add_i2c_subdev,
> - * @__v4l2_async_notifier_add_subdev or
> - * @v4l2_async_notifier_parse_fwnode_endpoints.
> + * v4l2_async_notifier_add_fwnode_remote_subdev(),
> + * v4l2_async_notifier_add_fwnode_subdev(),
> + * v4l2_async_notifier_add_i2c_subdev(),
> + * __v4l2_async_notifier_add_subdev() or
> + * v4l2_async_notifier_parse_fwnode_endpoints().
>   *
> - * There is no harm from calling v4l2_async_notifier_cleanup in other
> + * There is no harm from calling v4l2_async_notifier_cleanup() in other
>   * cases as long as its memory has been zeroed after it has been
>   * allocated.
>   */
> 




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