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5401b4f956
In current code, the pre-emphasize in eop state and chirp state are disabled only if we add “rockchip,u2phy-tuning” property in RK3399 dts, But we find that if we enable the pre-emphasize of sop/eop/chirp state for rk3399 by default, it will cause usb2 compliance test item - EL_8 and EL_9 failure, so disable the pre-emphasize of sop/eop/chirp state by default. And this can also help to avoid mis-trigger the disconnect detection or high-speed handshake failure. Change-Id: I5ceac9c88de4cdae5af904e973124c194f7718f6 Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com> Signed-off-by: Frank Wang <frank.wang@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.