ASoC: meson: Use managed DMA buffer allocation

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Using a managed buffer will pre-allocate the buffer using
snd_pcm_lib_preallocate_pages() and automatically free it when the PCM is
destroyed.

In addition it will call snd_pcm_lib_malloc_pages() before the driver's
hw_params() callback and snd_pcm_lib_free_pages() after the driver's
hw_free() callback.

This slightly reduces the boilerplate code of the driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20201218154544.25513-1-lars@metafoo.de
Signed-off-by: Mark Brown <broonie@kernel.org>

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Lars-Peter Clausen 2020-12-18 16:45:44 +01:00 • committed by Mark Brown

parent 57fc2bbc62

commit e05cde84ea

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3 changed files with 2 additions and 18 deletions

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sound/soc/meson/aiu-fifo-i2s.c

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sound/soc/meson/aiu-fifo-spdif.c

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18

sound/soc/meson/aiu-fifo.c

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