dmaengine: omap-dma: move register read/writes into omap-dma.c

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Export the DMA register information from the SoC specific data, such
that we can access the registers directly in omap-dma.c, mapping the
register region ourselves as well.

Rather than calculating the DMA channel register in its entirety for
each access, we pre-calculate an offset base address for the allocated
DMA channel and then just use the appropriate register offset.

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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This commit is contained in:

Russell King 2013-12-10 11:08:01 +00:00

parent 34a378fcb9

commit 596c471b69

4 changed files with 105 additions and 15 deletions

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4

arch/arm/mach-omap1/dma.c

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18

arch/arm/mach-omap2/dma.c

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96

drivers/dma/omap-dma.c

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2

include/linux/omap-dma.h

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