From a6cd7714c0bd53f72d3ed61acbb86b07bcf6c693 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 26 Mar 2018 14:50:25 +0300 Subject: dmaengine: Add note to dmatest documentation about supported channels 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" Signed-off-by: Andy Shevchenko Acked-By: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/driver-api/dmaengine/dmatest.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/driver-api/dmaengine/dmatest.rst b/Documentation/driver-api/dmaengine/dmatest.rst index 3922c0a3f0c0..9b0dcdb7b7a8 100644 --- a/Documentation/driver-api/dmaengine/dmatest.rst +++ b/Documentation/driver-api/dmaengine/dmatest.rst @@ -6,6 +6,11 @@ Andy Shevchenko 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 ===================================== -- cgit v1.2.3