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This converts the PPC4xx SPI driver to use GPIO descriptors. The driver is already just picking some GPIOs from the device tree so the conversion is pretty straight forward. However this driver is looking form a pure "gpios" property rather than the standard binding "cs-gpios" so we need to add a new exception to the gpiolib OF parser to allow this for this driver's compatibles. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20200714072226.26071-1-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.