dmaengine: rcar-dmac: use result of updated get_residue in tx_status
authorMuhammad Hamza Farooq <mfarooq@visteon.com>
Thu, 30 Jun 2016 15:15:15 +0000 (17:15 +0200)
committerVinod Koul <vinod.koul@intel.com>
Fri, 8 Jul 2016 05:39:10 +0000 (11:09 +0530)
commit3544d2878817bd139dda238cdd86a15e1c03d037
tree765e3e0376280b905dba65afc2ed8e008def31c7
parent3565fe53334cd3f0d59ff5db0872de9370775a19
dmaengine: rcar-dmac: use result of updated get_residue in tx_status

The hardware might have complete the transfer but the interrupt handler
might not have had a chance to run. If rcar_dmac_chan_get_residue()
which reads HW registers finds that there is no residue return
DMA_COMPLETE.

Signed-off-by: Muhammad Hamza Farooq <mfarooq@visteon.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[Niklas: add explanation in commit message]
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/sh/rcar-dmac.c