dmaengine: pl330: Handle xferred count if DMAMOV hasn't finished

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After executing DMAGO it's possible that a request can come in for the
current xferred count, but if that happens too soon then DMAMOV SAR/DAR
may not have yet completed. If that happens, we should explicitly return 0
since nothing has been transferred yet.

Signed-off-by: Stephen Barber <smbarber@chromium.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

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Stephen Barber 2016-11-01 16:44:27 -07:00 • committed by Vinod Koul

parent 9a1a34f3c8

commit c44da03dd5

1 changed files with 5 additions and 0 deletions

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drivers/dma/pl330.c

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