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Maxime Chevallier
2801b2f5fa
spi: imx: Use dynamic bursts only when bits_per_word is 8, 16 or 32
The dynamic bursts mode allows to group together multiple words into a single burst. To do so, it's necessary that words can be packed into the 32-bits FIFO entries, so we can't allow using this mode with bit_per_words different to 8, 16 or 32. This prevents shitfing out extra clock ticks for transfers with bit_per_word values not aligned on 8 bits. With that , we are sure that only the correct number of bits is shifted out at each transfer, so we don't need to mask out the remaining parts of the words. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.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. See Documentation/00-INDEX for a list of what is contained in each file. 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.
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