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21ae190e46
Merge series from Andy Shevchenko <andriy.shevchenko@linux.intel.com>: As Arnd suggested we may drop linux/spi/pxa2xx_spi.h as most of its content is being used solely internally to SPI subsystem (PXA2xx drivers). Hence this refactoring series with the additional win of getting rid of legacy documentation. Note, that we have the only user of a single plain integer field in the entire kernel for that. Switching to software nodes does not diminish any of type checking as we only pass an integer.
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 reStructuredText 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.