From: Fabio Baltieri <fabio.baltieri@linaro.org>
Date: Thu, 14 Feb 2013 09:03:10 +0000 (+0100)
Subject: dmaengine: ste_dma40: do not remove descriptors for cyclic transfers
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7dd145252574e34d92ad574e5168e4115639c0be;p=deliverable%2Flinux.git

dmaengine: ste_dma40: do not remove descriptors for cyclic transfers

Fix dma_tc_handle() to call d40_desc_remove() and d40_desc_done() only
for non-cyclic transfers, as this was breaking ux500_pcm since
introduced in:

d49278e dmaengine: dma40: Add support to split up large elements

Reported-by: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index ad860a221c33..1734feec47b1 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1570,10 +1570,10 @@ static void dma_tc_handle(struct d40_chan *d40c)
 			d40c->busy = false;
 		pm_runtime_mark_last_busy(d40c->base->dev);
 		pm_runtime_put_autosuspend(d40c->base->dev);
-	}
 
-	d40_desc_remove(d40d);
-	d40_desc_done(d40c, d40d);
+		d40_desc_remove(d40d);
+		d40_desc_done(d40c, d40d);
+	}
 
 	d40c->pending_tx++;
 	tasklet_schedule(&d40c->tasklet);