ASoC: atmel-pdc: Use managed DMA buffer allocation

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Instead of manually managing its DMA buffers using
dma_{alloc,free}_coherent() lets the sound core take care of this using
managed buffers.

On one hand this reduces the amount of boiler plate code, but the main
motivation for the change is to use the shared code where possible. This
makes it easier to argue about correctness and that the code does not
contain subtle bugs like data leakage or similar.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20210106133650.13509-1-lars@metafoo.de
Signed-off-by: Mark Brown <broonie@kernel.org>

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Lars-Peter Clausen 2021-01-06 14:36:48 +01:00 • committed by Mark Brown

parent 6fd8d2d275

commit 22eee4d3ef

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sound/soc/atmel/atmel-pcm-pdc.c

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