tree 70373963c3c6f3ee91ad073a5f987d36de4e8175
parent e239345f642e6a255d0ba1e3d92c2f9ec5a44fbe
author Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> 1352368927 +0000
committer Vinod Koul <vinod.koul@intel.com> 1357625111 -0800

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

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>