tree a20a9a2e69c0dfc232978911ee4ff480aeb8729c
parent 9a1a34f3c8612864f18a71febc134957a03eca64
author Stephen Barber <smbarber@chromium.org> 1478043867 -0700
committer Vinod Koul <vinod.koul@intel.com> 1479099606 +0530

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

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>