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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2021-11-18 11:09:52 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-11-22 08:01:00 +0100 |
| commit | c61d7b2ef141abf81140756b45860a2306f395a2 (patch) | |
| tree | 354b852ab8b96552c286c28618417a37f59abb9a /Documentation/driver-api | |
| parent | Documentation: dmaengine: Add a description of what dmatest does (diff) | |
| download | linux-c61d7b2ef141abf81140756b45860a2306f395a2.tar.xz linux-c61d7b2ef141abf81140756b45860a2306f395a2.zip | |
Documentation: dmaengine: Correctly describe dmatest with channel unset
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>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/dmaengine/dmatest.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/driver-api/dmaengine/dmatest.rst b/Documentation/driver-api/dmaengine/dmatest.rst index 529cc2cbbb1b..cf9859cd0b43 100644 --- a/Documentation/driver-api/dmaengine/dmatest.rst +++ b/Documentation/driver-api/dmaengine/dmatest.rst @@ -153,13 +153,14 @@ 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. |