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Documentation: dmaengine: Correctly describe dmatest with channel unset 

commit c61d7b2ef141abf81140756b45860a2306f395a2 upstream.

Currently the documentation states that channels must be configured before
running the dmatest. This has not been true since commit 6b41030fdc79
("dmaengine: dmatest: Restore default for channel"). Fix accordingly.

Fixes: 6b41030fdc79 ("dmaengine: dmatest: Restore default for channel")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20211118100952.27268-3-daniel.thompson@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Thompson 2021-11-18 10:09:52 +00:00 committed by Greg Kroah-Hartman
parent 05594394dc
commit 49daee5500
1 changed files with 4 additions and 3 deletions
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7
Documentation/driver-api/dmaengine/dmatest.rst
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@ -143,13 +143,14 @@ Part 5 - Handling channel allocation
Allocating Channels
-------------------
Channels are required to be configured prior to starting the test run.
Attempting to run the test without configuring the channels will fail.
Channels do not need to be configured prior to starting a test run. Attempting
to run the test without configuring the channels will result in testing any
channels that are available.
Example::
% echo 1 > /sys/module/dmatest/parameters/run
dmatest: Could not start test, no channels configured
dmatest: No channels configured, continue with any
Channels are registered using the "channel" parameter. Channels can be requested by their
name, once requested, the channel is registered and a pending thread is added to the test list.