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6adaa9a4ec
Some devices, such as the Lenovo Yoga Tab 3 Pro (YT3-X90F) have multiple batteries with a separate bq25890 charger for each battery. This requires the maximum current the external power-supply can deliver to be divided over the chargers. The Android vendor kernel shipped on the YT3-X90F divides this current with a 40/60 percent split so that batteries are done charging at approx. the same time if both were fully empty at the start. Add support for a new "linux,iinlim-percentage" percentage property which can be set to indicate that a bq25890 charger should only use that percentage of the external power-supply's maximum current. So far this new property is only used on x86/ACPI (non devicetree) devs, IOW it is not used in actual devicetree files. The devicetree-bindings maintainers have requested properties like these to not be added to the devicetree-bindings, so the new property is deliberately not added to the existing devicetree-bindings. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> |
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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.