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media: subdev: Improve s_stream documentation

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Now that enable/disable_streams operations are available for
single-stream subdevices too, there's no reason to use the old s_stream
operation on new drivers. Extend the documentation reflecting this.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Umang Jain<umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Tomi Valkeinen 2024-04-24 18:39:14 +03:00 committed by Hans Verkuil
parent 93c726f41a
commit f8e9662e4d
1 changed files with 9 additions and 0 deletions
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9
include/media/v4l2-subdev.h
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@ -450,6 +450,15 @@ enum v4l2_subdev_pre_streamon_flags {
* already started or stopped subdev. Also see call_s_stream wrapper in
* v4l2-subdev.c.
*
* New drivers should instead implement &v4l2_subdev_pad_ops.enable_streams
* and &v4l2_subdev_pad_ops.disable_streams operations, and use
* v4l2_subdev_s_stream_helper for the &v4l2_subdev_video_ops.s_stream
* operation to support legacy users.
*
* Drivers should also not call the .s_stream() subdev operation directly,
* but use the v4l2_subdev_enable_streams() and
* v4l2_subdev_disable_streams() helpers.
*
* @g_pixelaspect: callback to return the pixelaspect ratio.
*
* @s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev