dmaengine: sun4i: Add support for cyclic requests with dedicated DMA

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Currently the cyclic transfers can be used only with normal DMAs. They
can be used by pcm_dmaengine module, which is required for implementing
sound with sun4i-hdmi encoder. This is so because the controller can
accept audio only from a dedicated DMA.

This patch enables them, following the existing style for the
scatter/gather type transfers.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20200110141140.28527-2-stefan@olimex.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Stefan Mavrodiev 2020-01-10 16:11:39 +02:00 • committed by Vinod Koul

parent 4b04817885

commit ffc079a4ac

1 changed files with 24 additions and 21 deletions

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drivers/dma/sun4i-dma.c

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