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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-11 23:35:11 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-11 23:35:11 -0400
commitcfb63bafdb87bbcdc5d6dbbca623d3f69475f118 (patch)
tree6bc2f07f7818b0a6aafc08058ace24322c7bf5cd /drivers/dma/omap-dma.c
parenta3ab02b4c5d2ba0eff137a9442b80944ce2d9366 (diff)
parent765024697807ad1e1cac332aa891253ca4a339da (diff)
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul: "The first one fixes issue in pl330 to check for DT compatible and the second one fixes omap-dma to start without delay" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: omap-dma: Start DMA without delay for cyclic channels DMA: PL330: Add check if device tree compatible
Diffstat (limited to 'drivers/dma/omap-dma.c')
-rw-r--r--drivers/dma/omap-dma.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index c4b4fd2acc42..08b43bf37158 100644
--- 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)
276 276
277 spin_lock_irqsave(&c->vc.lock, flags); 277 spin_lock_irqsave(&c->vc.lock, flags);
278 if (vchan_issue_pending(&c->vc) && !c->desc) { 278 if (vchan_issue_pending(&c->vc) && !c->desc) {
279 struct omap_dmadev *d = to_omap_dma_dev(chan->device); 279 /*
280 spin_lock(&d->lock); 280 * c->cyclic is used only by audio and in this case the DMA need
281 if (list_empty(&c->node)) 281 * to be started without delay.
282 list_add_tail(&c->node, &d->pending); 282 */
283 spin_unlock(&d->lock); 283 if (!c->cyclic) {
284 tasklet_schedule(&d->task); 284 struct omap_dmadev *d = to_omap_dma_dev(chan->device);
285 spin_lock(&d->lock);
286 if (list_empty(&c->node))
287 list_add_tail(&c->node, &d->pending);
288 spin_unlock(&d->lock);
289 tasklet_schedule(&d->task);
290 } else {
291 omap_dma_start_desc(c);
292 }
285 } 293 }
286 spin_unlock_irqrestore(&c->vc.lock, flags); 294 spin_unlock_irqrestore(&c->vc.lock, flags);
287} 295}