Hi Muhammad, Thank you for the patch. On Tuesday 29 September 2015 22:44:47 hamzahfrq.sub@xxxxxxxxx wrote: > From: Muhammad Hamza Farooq <mfarooq@xxxxxxxxxxx> > > Signed-off-by: Muhammad Hamza Farooq <mfarooq@xxxxxxxxxxx> > --- > drivers/dma/sh/rcar-dmac.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c > index 0b5a367..6eec878 100644 > --- a/drivers/dma/sh/rcar-dmac.c > +++ b/drivers/dma/sh/rcar-dmac.c > @@ -327,7 +327,8 @@ static void rcar_dmac_chan_start_xfer(struct > rcar_dmac_chan *chan) struct rcar_dmac_desc *desc = chan->desc.running; > u32 chcr = desc->chcr; > > - WARN_ON_ONCE(rcar_dmac_chan_is_busy(chan)); > + WARN_ON_ONCE(rcar_dmac_chan_is_busy(chan) || > + rcar_dmac_last_tx_complete(chan)); Why is that a problem ? > if (chan->mid_rid >= 0) > rcar_dmac_chan_write(chan, RCAR_DMARS, chan->mid_rid); -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html