ASoC/mpc5200: Track DMA position by period number instead of bytes

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All DMA blocks are lined up to period boundaries, but the DMA
handling code tracks bytes instead.  This patch reworks the code
to track the period index into the DMA buffer instead of the
physical address pointer.  Doing so makes the code simpler and
easier to understand.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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Grant Likely 2009-11-07 01:33:53 -07:00 • committed by Mark Brown

parent 4cae37fa98

commit 8f159d720b

2 changed files with 11 additions and 25 deletions

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28

sound/soc/fsl/mpc5200_dma.c

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8

sound/soc/fsl/mpc5200_dma.h

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