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dmaengine: Add note to dmatest documentation about supported channels

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The documentation is not so clear for newbies in a sense of what type of the
channels are supported by it.

Clarify this by adding a note at the preamble of the documentation.

Reported-by: "Zhu, Tony" <tony.zhu@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Andy Shevchenko 2018-03-26 14:50:25 +03:00 committed by Jonathan Corbet
parent 738947f0f3
commit a6cd7714c0
1 changed files with 5 additions and 0 deletions
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5
Documentation/driver-api/dmaengine/dmatest.rst
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@ -6,6 +6,11 @@ Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This small document introduces how to test DMA drivers using dmatest module.
.. note::
The test suite works only on the channels that have at least one
capability of the following: DMA_MEMCPY (memory-to-memory), DMA_MEMSET
(const-to-memory or memory-to-memory, when emulated), DMA_XOR, DMA_PQ.
Part 1 - How to build the test module
=====================================