Re: [PATCH v4] MTD: LPC32xx SLC NAND driver
From: Russell King - ARM Linux <hidden>
Date: 2012-06-03 20:38:09
Also in:
linux-arm-kernel, lkml
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:quoted
quoted
+ 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.