fd935fc421
For setting debounce config we want to write an offset in a per-gpiochip register, and we know which gpiochip we are on. Instead of a roundtrip over the IRQ number, figure out what port we are on for this GPIO chip, then index to the right register and write the value. This adds the ep93xx_gpio_port() that finds the port index from a struct gpio_chip * that we can later exploit to simplify more code. Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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.