[PATCH] DMA: PL330: allow submitting 2 requests at a time

[Jassi Brar]

Fix the logic to allow mc programming of second transfer after first
has been done, by removing immediate return upon success and iterating
until we detect QFull or DMAC dying.

Reported-by: Alvaro Moran <dirac3000 at gmail.com>
Tested-by: Alvaro Moran <dirac3000 at gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh at linaro.org>
---
 drivers/dma/pl330.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 80680ee..c1a867e 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2282,13 +2282,12 @@ static inline void fill_queue(struct dma_pl330_chan *pch)
 
 		/* If already submitted */
 		if (desc->status == BUSY)
-			break;
+			continue;
 
 		ret = pl330_submit_req(pch->pl330_chid,
 						&desc->req);
 		if (!ret) {
 			desc->status = BUSY;
-			break;
 		} else if (ret == -EAGAIN) {
 			/* QFull or DMAC Dying */
 			break;
-- 
1.7.10.4