dmaengine: omap-dma: cleanup errata 3.3 handling

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Provide a function to read the CSAC/CDAC register, working around the
OMAP 3.2/3.3 erratum (which requires two reads of the register if the
first returned zero.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Russell King 2013-11-06 19:26:45 +00:00

parent c5ed98b6ae

commit b07fd625ac

1 changed files with 29 additions and 23 deletions

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drivers/dma/omap-dma.c

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