bd306fdb4e
The GW71xx has a USB Type-C connector with USB 2.0 signaling. GPIO1_12 is the power-enable to the TPS25821 Source controller and power switch responsible for monitoring the CC pins and enabling VBUS. Therefore GPIO1_12 must always be enabled and the vbus output enable from the IMX8MM can be ignored. To fix USB OTG VBUS enable a pull-up on GPIO1_12 to always power the TPS25821 and change the regulator output to GPIO1_10 which is unconnected. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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.