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ARM: dma: replace ISA_DMA_THRESHOLD with a variable

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ISA_DMA_THRESHOLD has been unused by non-arch code, so lets now get
rid of it from ARM by replacing it with arm_dma_zone_mask.  Move
dma_supported() and dma_set_mask() out of line, and have
dma_supported() check this new variable instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-07-08 21:26:59 +01:00
commit 022ae537b2
5 changed files with 50 additions and 42 deletions
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