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e14f9b4ee3
Create two debugfs node to debug hdmi controller and phy. Use following command to debug: Read hdmi controller register: cat /d/dw-hdmi/ctrl Read hdmi phy register: cat /d/dw-hdmi/phy Write hdmi controller register: echo <reg> <val> > /d/dw-hdmi/ctrl Write hdmi phy register: echo <reg> <val> > /d/dw-hdmi/phy <reg> and <val> is hexadecimal. Change-Id: I02e40cc94aa651ff0734feddbfa7d816edcf222f Signed-off-by: Zheng Yang <zhengyang@rock-chips.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.