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The eDMAv4 channel mux has a limitation where certain requests must use even channels, while others must use odd numbers. Add two flags (ARGS_EVEN_CH and ARGS_ODD_CH) to reflect this limitation. The device tree source (dts) files need to be updated accordingly. This issue was identified by the following commit: commita725990557("arm64: dts: imx93: Fix the dmas entries order") Reverting channel orders triggered this problem. Fixes:72f5801a4e("dmaengine: fsl-edma: integrate v3 support") Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20231114154824.3617255-2-Frank.Li@nxp.com 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.