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50904e9bd6
The Crystal Cove PMIC has a pin which can be used to connect the IRQ of an external charger IC. On some boards this is used and we need to have a cell for this, with a driver which creates its own irqchip with a single IRQ for the charger driver to consume. The charger driver cannot directly consume the IRQ from the MFD level irqchip because the PMIC has 2 levels of interrupts and the second level interrupt status register, which is handled by the cell drivers, needs to have the IRQ acked to avoid an IRQ storm. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20211225115509.94891-3-hdegoede@redhat.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.