[PATCH v4] MTD: LPC32xx SLC NAND driver
Russell King - ARM Linux
linux at arm.linux.org.uk
Sun Jun 3 16:37:49 EDT 2012
On Sun, Jun 03, 2012 at 09:49:40PM +0200, Roland Stigge wrote:
> Thanks for the suggestions!
> On 03/06/12 21:09, Russell King - ARM Linux wrote:
> >> + dma_async_issue_pending(host->dma_chan);
> >> +
> >> + wait_for_completion_timeout(&host->comp, msecs_to_jiffies(1000));
> > What about unmapping the buffer upon completion?
> OK - by not specifying DMA_COMPL_SKIP_*_UNMAP in flags, I was thinking
> that this happens somehow magically. ;-) But maybe I was just confused.
Slave transfers should never be automatically unmapped by the DMA engine
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