Messages in this thread | | | Date | Sun, 3 Jun 2012 21:37:49 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH v4] MTD: LPC32xx SLC NAND driver |
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On Sun, Jun 03, 2012 at 09:49:40PM +0200, Roland Stigge wrote: > Hi! > > 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 driver.
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