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1087df59e2
Current Code USB2 PHY use extcon notifier to send USB charger types to power driver. If we use gpio to detect vbus or id state, the extcon device is allocated and registered by extcon-usb-gpio.c driver and USB2 PHY obtains this extcon device through DTS. If these cables are missing, it will cause USB2 PHY driver to be unable to set the status of these cables, leading to functional abnormalities. Change-Id: Iec27dfde4ec8bf12294bd6c57c3db5dada2f35cd Signed-off-by: William Wu <william.wu@rock-chips.com> Signed-off-by: Jianwei Zheng <jianwei.zheng@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.
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.