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Merge series from Prajna Rajendra Kumar <prajna.rajendrakumar@microchip.com>: This patch series adds support for the Microchip FPGA CoreSPI "soft" IP and documents its device tree bindings. As preparation, the existing Microchip SPI driver is renamed to clearly indicate that it supports only the Microchip PolarFire SoC "hard" controller. Although it was originally named with the expectation that it might also cover the FPGA CoreSPI "soft" IP, the register layouts differ significantly, so separate drivers are required.
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.