ASoC: rsnd: use dma_sync_single_for_xxx() for IOMMU

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IOMMU needs DMA mapping function to use it. One solution is that
we can use DMA mapped dev on snd_pcm_lib_preallocate_pages_for_all()
for SNDRV_DMA_TYPE_DEV. But pcm_new and dma map timing are mismatched.
Thus, this patch uses SNDRV_DMA_TYPE_CONTINUOUS for pcm_new,
and use dma_sync_single_for_xxx() for each transfer.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Kuninori Morimoto 2016-11-14 04:20:56 +00:00 • committed by Mark Brown

parent edce5c496c

commit 4821d914fe

2 changed files with 82 additions and 6 deletions

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4

sound/soc/sh/rcar/core.c

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84

sound/soc/sh/rcar/dma.c

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