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2848e039c5
It is sensible to assume that the hardware actually always has a way of charging the battery so when power_supply_am_i_supplied does not find any suppliers, that does not mean that there are none, but simply that no power_supply-drivers are registered / bound for any suppliers for the supply calling power_supply_am_i_supplied. At which point a fuel-gauge driver calling power_supply_am_i_supplied() cannot determine whether the battery is being charged or not. Allow a caller of power_supply_am_i_supplied to differentiate between there not being any suppliers, vs no suppliers being online by returning -ENODEV if there are no suppliers matching supplied_to / supplied_from, which allows fuel-gauge drivers to return POWER_SUPPLY_STATUS_UNKNOWN rather then POWER_SUPPLY_STATUS_DISCHARGING if there are no suppliers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> |
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| firmware | ||
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.