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1766e4b704
According to the AMD BKDG, the GPIO ActiveLevel bits (10:9) map to: 00 Active High 01 Active Low 10 Active on both edges iff LevelTrig (bit 8) == 0 11 Reserved The current code has a bug where it interprets 00 => Active Low, and 01 => Active High. Fix the bug, restrict "Active on both" to just the edge trigger case, and refactor a bit to make the logic more readable. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> 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.