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Media bus configuration flags and media bus type were so far a property of each VIN instance, as the subdevice they were connected to was immutable during the whole system life time. With the forth-coming introduction of parallel input devices support, a VIN instance can have the subdevice it is connected to switched at runtime, from a CSI-2 subdevice to a parallel one and viceversa, through the modification of links between media entities in the media controller graph. To avoid discarding the per-subdevice configuration flags retrieved by v4l2_fwnode parsing facilities, cache them in the 'rvin_graph_entity' member of each VIN instance, opportunely renamed to 'rvin_parallel_entity'. Also modify the register configuration function to take mbus flags into account when running on a bus type that supports them. The media bus type currently in use will be updated in a follow-up patch to the link state change notification function. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.