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In a further commit we'll have to get rid of the update_cr0() callback and define a DW SSI capability instead. Since Keem Bay master/slave functionality is controller by the CTRL0 register bitfield, we need to first move the master mode selection into the internal corresponding update_cr0 method, which would be activated by means of the dedicated DW_SPI_CAP_KEEMBAY_MST capability setup. Note this will be also useful if the driver will be ever altered to support the DW SPI slave interface. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20200920112914.26501-11-Sergey.Semin@baikalelectronics.ru 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.