diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-11 20:35:11 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-11 20:35:11 -0700 |
commit | cfb63bafdb87bbcdc5d6dbbca623d3f69475f118 (patch) | |
tree | 6bc2f07f7818b0a6aafc08058ace24322c7bf5cd /drivers/dma/omap-dma.c | |
parent | a3ab02b4c5d2ba0eff137a9442b80944ce2d9366 (diff) | |
parent | 765024697807ad1e1cac332aa891253ca4a339da (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.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index c4b4fd2acc4..08b43bf3715 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) 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); } |