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DMAENGINE: extend the control command to include an arg

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This adds an argument to the DMAengine control function, so that
we can later provide control commands that need some external data
passed in through an argument akin to the ioctl() operation
prototype.

[dan.j.williams@intel.com: fix up some missed conversions]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Linus Walleij
2010-05-17 16:30:42 -07:00
committed by Dan Williams
parent 4aed79b281
commit 058276303d
14 changed files with 32 additions and 21 deletions
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5
drivers/dma/coh901318.c
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@@ -942,7 +942,7 @@ coh901318_free_chan_resources(struct dma_chan *chan)
spin_unlock_irqrestore(&cohc->lock, flags);
chan->device->device_control(chan, DMA_TERMINATE_ALL);
chan->device->device_control(chan, DMA_TERMINATE_ALL, 0);
}
@@ -1176,7 +1176,8 @@ coh901318_issue_pending(struct dma_chan *chan)
}
static int
coh901318_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd)
coh901318_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
unsigned long arg)
{
unsigned long flags;
struct coh901318_chan *cohc = to_coh901318_chan(chan);