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bc10ef2673
The RK3566 OTG port supports USB 2.0 only, and make the internal 2.0 utmi clock to be routed as the 3.0 (pipe) clock. We find that if the ACLK_PIPE is set to 400MHz, the DWC3 controller may suspend the USB 2.0 PHY due to some unknown reason during usb enumeration, and the utmi clock will be gated off, it makes the DWC3 controller to work abnormally. This patch adds dis_u2_susphy_quirk for RK3566 OTG to avoid USB 2.0 PHY enter suspend mode if the suspend conditions of DWC3 controller are valid. And the USB 2.0 PHY suspend mode can be controlled in the PHY driver. Change-Id: I5b00e8da8e5865d78cd706fe00476773aef8f8d5 Signed-off-by: William Wu <william.wu@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.