ASoC: dmaengine: support deferred probe for DMA channels

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Enhance dmaengine_pcm_request_chan_of() to support deferred probe for
DMA channels, by using the new dma_request_slave_channel_or_err() API.
This prevents snd_dmaengine_pcm_register() from succeeding without
acquiring DMA channels due to the relevant DMA controller not yet being
registered.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Stephen Warren 2013-12-10 11:11:02 -07:00 • committed by Mark Brown

parent d3ae883530

commit 5eda87b890

1 changed files with 16 additions and 4 deletions

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sound/soc/soc-generic-dmaengine-pcm.c

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