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This patch adds functions to start FRL training for an HDMI2.1 sink, connected via a PCON as a DP branch device. This patch also adds a new structure for storing frl training related data, when FRL training is completed. v2: As suggested by Uma Shankar: -renamed couple of variables for better clarity -tweaked the macros used for correct semantics for true/false -fixed other styling issues. v3: Completed the TODO for condition for going to FRL mode. Modified the condition to determine the required FRL b/w based only on the Pcon and Sink's max FRL values. Moved the frl structure initialization to intel_dp_init_connector(). v4: Fixed typo in initialization of frl structure. v5: Always use FRL if its possible, instead of enabling only for higher modes as done in v3. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> (v2) [Jani: Fixed checkpatch BRACES, CONSTANT_COMPARISON.] Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201218103723.30844-10-ankit.k.nautiyal@intel.com
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.