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ea3600379e
Currently atomisp behavior is determined by a mix of which /dev/video# node (which isp-subdev source-pad) is opened + which run-mode is set. With various combinations not being allowed and likely leading to crashes due to lack of error checking. Now that we no longer support continuous mode and thus no longer support streaming from 2 /dev/video# nodes at the same time, there is no need to have a separate /dev/video# node for each run-mode. Instead the plan is to support the 3 different run-modes on a single /dev/video# node. Since we are moving to a single isp-subdev source-pad, the behavior should then be solely and consistently be defined by the run-mode. Replace various source-pad checks with run-mode checks in preparation for moving to a single source-pad. In some places the new run-mode checks overlap with existing run-mode checks and the checks are folded together into a single check. This removes handling of the ATOMISP_SUBDEV_PAD_SOURCE_VF source-pad, this source-pad was only useful for continuous mode, for which support has been removed. Note that currently the only run-mode which we actually have been able to get to work is the video-capture with scaler aka preview mode and as such that is also the only run-mode tested. This patch is intended to preserve the current (known to not work 100%) behavior of the other run-modes, so that those maybe can be enabled later. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@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.
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.