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ed771d75af
Captured video would be out of sync when using the adv7280 with the BT.656-4 protocol. Certain registers (0x04, 0x31, 0xE6) had to be configured properly to ensure BT.656-4 compatibility. An error in the adv7280 reference manual suggested that EAV/SAV mode was enabled by default, however upon inspecting register 0x31, it was determined to be disabled by default. [fabio: Introduce "adv,force-bt656-4" to not affect the existing users] [hverkuil: fix a small checkpatch alignment warning] Signed-off-by: Matthew Michilot <matthew.michilot@gmail.com> Reviewed-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@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.