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AXP803/AXP813 have a flag that enables/disables the USB power supply input. Allow control of this flag via the ONLINE property on those variants. It may be necessary to offline the USB power supply input when using the USB port in OTG mode, or to allow userspace to disable charging. When the USB VBUS input is disabled via the PATH_SEL bit, the VBUS_USED bit in PWR_INPUT_STATUS is cleared, so there is no change needed when getting the property. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.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.