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08ba7ae35b
In case of a bi-directional transfer, receive DMA may complete in the rcar-dmac driver before transmit DMA, due to scheduling latencies. As the MSIOF driver waits for completion of the receive DMA only, it may submit the next transmit DMA request before the previous one has completed. Make the driver more robust by waiting for the completion of both receive and transmit DMA, when applicable. Based on a patch in the BSP by Ryo Kataoka. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> 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.