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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2021-11-18 10:09:52 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 09:19:51 +0100 |
| commit | 49daee55004b084af5e820b3f9926a6f918e97b1 (patch) | |
| tree | 18a978f05da706feff69d90d23d42310dfb9cd98 /Documentation/driver-api | |
| parent | 05594394dc27ff8846a5d3beae50c020c4352516 (diff) | |
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>
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 ee268d445d38..d2e1d8b58e7d 100644 --- a/Documentation/driver-api/dmaengine/dmatest.rst +++ b/Documentation/driver-api/dmaengine/dmatest.rst @@ -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. |