e1bc204894
spi::mode is defined by framework for several SPI capabilities, such as polarity, phase, bit-endian, wire number. Directly use this variable for setting controller's polarity and phase causes other bit in register being set. Since SPI framework has its definition, SPI_CPOL and SPI_CPHA offset may be changed by framwork change. Instead of just mask off the relevant bits, fetch required bit in spi::mode and set to register. Signed-off-by: shaftarger <shol@livemail.tw> 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.