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32f2fc5dc3992b4b60cc6b1a6a31be605cc9c3a2
dma_request_channel() can return -EPROBE_DEFER, if DMA driver is not ready. Currently driver just falls back to PIO mode on probe deferral. Fix this by requesting all required channels during probe and propagating EPROBE_DEFER error code. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Link: https://lore.kernel.org/r/20200204124816.16735-3-vigneshr@ti.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.
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