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f2f0cd8925
When the driver was converted from soc_camera software support for V4L2_FIELD_SEQ_TB and V4L2_FIELD_SEQ_BT were added. This was done by capturing twice to the same VB2 buffer, but at different offsets. This turned out to be a bad idea and it never really worked properly in all situations. As the hardware can't support this mode natively remove trying to emulate it in software. It's still possible to capture TOP or BOTTOM fields separately or both ALTERNATING. If user-space wants the same fields in the same buffer the same hack to capture twice to the same buffer can be done. Removing this error prone emulated support pave ways in future work to simplify the internal buffer handling and making it less fragile, while enabling adding support for other features the hardware actually supports. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> Tested-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.