dmaengine: add cpu_relax() to busy-loop in dma_sync_wait()

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Removal of the busy-loop from dma_sync_wait() is not a trivial
task so just add cpu_relax() to the loop for now.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <djbw@fb.com>

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Bartlomiej Zolnierkiewicz 2012-11-08 10:02:07 +00:00 • committed by Vinod Koul

parent e239345f64

commit 2cbe7feba1

1 changed files with 4 additions and 1 deletions

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drivers/dma/dmaengine.c

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