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| author | James Morris <jmorris@namei.org> | 2009-03-23 23:52:46 (GMT) |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-03-23 23:52:46 (GMT) |
| commit | 703a3cd72817e99201cef84a8a7aecc60b2b3581 (patch) | |
| tree | 3e943755178ff410694722bb031f523136fbc432 /drivers/dma/fsldma.c | |
| parent | df7f54c012b92ec93d56b68547351dcdf8a163d3 (diff) | |
| parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) | |
| download | linux-fsl-qoriq-703a3cd72817e99201cef84a8a7aecc60b2b3581.tar.xz | |
Merge branch 'master' into next
Diffstat (limited to 'drivers/dma/fsldma.c')
| -rw-r--r-- | drivers/dma/fsldma.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 70126a6..86d6da4 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -158,7 +158,8 @@ static void dma_start(struct fsl_dma_chan *fsl_chan) static void dma_halt(struct fsl_dma_chan *fsl_chan) { - int i = 0; + int i; + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) | FSL_DMA_MR_CA, 32); @@ -166,8 +167,11 @@ static void dma_halt(struct fsl_dma_chan *fsl_chan) DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & ~(FSL_DMA_MR_CS | FSL_DMA_MR_EMS_EN | FSL_DMA_MR_CA), 32); - while (!dma_is_idle(fsl_chan) && (i++ < 100)) + for (i = 0; i < 100; i++) { + if (dma_is_idle(fsl_chan)) + break; udelay(10); + } if (i >= 100 && !dma_is_idle(fsl_chan)) dev_err(fsl_chan->dev, "DMA halt timeout!\n"); } |