f5151311c3
When user try to request one DMA channel by __dma_request_channel(), it won't validate if it is the correct DMA device to request, that will lead each DMA engine driver to validate the correct device node in their filter function if it is necessary. Thus we can add the matching device node validation in the DMA engine core, to remove all of device node validation in the drivers. Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Vinod Koul <vkoul@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.