Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

[firefly-linux-kernel-4.4.55.git] / drivers / dma / omap-dma.c

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index c4b4fd2acc42b8fc605ccc70a71907ab3668794c..08b43bf3715816951d23cc71dd49ca9b810b55f1 100644 (file)
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -276,12 +276,20 @@ static void omap_dma_issue_pending(struct dma_chan *chan)
 
        spin_lock_irqsave(&c->vc.lock, flags);
        if (vchan_issue_pending(&c->vc) && !c->desc) {
-               struct omap_dmadev *d = to_omap_dma_dev(chan->device);
-               spin_lock(&d->lock);
-               if (list_empty(&c->node))
-                       list_add_tail(&c->node, &d->pending);
-               spin_unlock(&d->lock);
-               tasklet_schedule(&d->task);
+               /*
+                * c->cyclic is used only by audio and in this case the DMA need
+                * to be started without delay.
+                */
+               if (!c->cyclic) {
+                       struct omap_dmadev *d = to_omap_dma_dev(chan->device);
+                       spin_lock(&d->lock);
+                       if (list_empty(&c->node))
+                               list_add_tail(&c->node, &d->pending);
+                       spin_unlock(&d->lock);
+                       tasklet_schedule(&d->task);
+               } else {
+                       omap_dma_start_desc(c);
+               }
        }
        spin_unlock_irqrestore(&c->vc.lock, flags);
 }