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Instead of grabbing GPIOs using the legacy interface and handling them in the setup callback, just let the core grab and use the GPIOs using descriptors. Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Sunny Luo <sunny.luo@amlogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20191205083915.27650-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.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.
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.