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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-01 13:46:37 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-01 13:46:37 -1000 |
| commit | 12ff47e7f5fb64c566f62e6cf6a3b291c51bd337 (patch) | |
| tree | d9fba3780142af380ccfaf90d8b13363e3475bd7 /drivers/dma/mxs-dma.c | |
| parent | 73bcbac130a59f236ae78ed70ef7a05b45caa19e (diff) | |
| parent | 1ae105aa7416087f2920c35c3cd16831d0d09c9c (diff) | |
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (37 commits)
Improve slave/cyclic DMA engine documentation
dmaengine: pl08x: handle the rest of enums in pl08x_width
DMA: PL08x: cleanup selection of burst size
DMA: PL08x: avoid recalculating cctl at each prepare
DMA: PL08x: cleanup selection of buswidth
DMA: PL08x: constify plchan->cd and plat->slave_channels
DMA: PL08x: separately store source/destination cctl
DMA: PL08x: separately store source/destination slave address
DMA: PL08x: clean up LLI debugging
DMA: PL08x: select LLI bus only once per LLI setup
DMA: PL08x: remove unused constants
ARM: mxs-dma: reset after disable channel
dma: intel_mid_dma: remove redundant pci_set_drvdata calls
dma: mxs-dma: fix unterminated platform_device_id table
dmaengine: pl330: make platform data optional
dmaengine: imx-sdma: return proper error if kzalloc fails
pch_dma: Fix CTL register access issue
dmaengine: mxs-dma: skip request_irq for NO_IRQ
dmaengine/coh901318: fix slave submission semantics
dmaengine/ste_dma40: allow memory buswidth/burst to be configured
...
Fix trivial whitespace conflict in drivers/dma/mv_xor.c
Diffstat (limited to 'drivers/dma/mxs-dma.c')
| -rw-r--r-- | drivers/dma/mxs-dma.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index 88aad4f54002..be641cbd36fc 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -327,10 +327,12 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan) memset(mxs_chan->ccw, 0, PAGE_SIZE); - ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler, - 0, "mxs-dma", mxs_dma); - if (ret) - goto err_irq; + if (mxs_chan->chan_irq != NO_IRQ) { + ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler, + 0, "mxs-dma", mxs_dma); + if (ret) + goto err_irq; + } ret = clk_enable(mxs_dma->clk); if (ret) @@ -535,6 +537,7 @@ static int mxs_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, switch (cmd) { case DMA_TERMINATE_ALL: mxs_dma_disable_chan(mxs_chan); + mxs_dma_reset_chan(mxs_chan); break; case DMA_PAUSE: mxs_dma_pause_chan(mxs_chan); @@ -707,6 +710,8 @@ static struct platform_device_id mxs_dma_type[] = { }, { .name = "mxs-dma-apbx", .driver_data = MXS_DMA_APBX, + }, { + /* end of list */ } }; |