e7baae1cfb
[Why] Some monitors mark 4K@60 capable HDMI port only have 300MHz TMDS maximum, but the edid includes 4K@60 mode in cea extension block. [How] To enable 4K@60, need to limit BW by allowing YCbCr420 ONLY mode. Add YCbCr420 only support for monitors that do not fully support HDMI2.0, e.g., ASUS PA328. The YCbCr420 only support applies to DCN, DCE112 or higher. Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.
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.