b456fd18ca
Split the TFRTYP_TRSFR_ bitfields in 2: one bit encoding the mem/reg transfer type and one bit encoding the direction of the transfer (read/write). Remove NOP when setting read transfer type. Remove useless setting of write transfer type when op->data.dir == SPI_MEM_DATA_IN && !op->data.nbytes. QSPI_IFR_TFRTYP_TRSFR_WRITE is specific just to sama5d2 qspi, rename it to QSPI_IFR_SAMA5D2_WRITE_TRSFR. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> 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.