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Some devices with an AXP288 PMIC do not have a battery at all, or use external charger and fuelgauge ICs instead of the AXP288 builtin functionality. On such devices we should not bind to the fuelgauge function to avoid exporting a non working power_supply class device. This also avoids the following errors repeating over and over again in dmesg: axp288_fuel_gauge axp288_fuel_gauge: capacity measurement not valid axp288_fuel_gauge axp288_fuel_gauge: Error 0xe2 contents not valid power_supply axp288_fuel_gauge: driver failed to report 'charge_now' property: -6 Cc: Carlo Caione <carlo@endlessm.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
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.