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Date: Fri, 26 Apr 2013 10:44:30 +0100 From: Russell King - ARM Linux <linux@....linux.org.uk> To: Arnd Bergmann <arnd@...db.de> Cc: linux-arm-kernel@...ts.infradead.org, Vinod Koul <vinod.koul@...el.com>, Linus Walleij <linus.walleij@...aro.org>, Linus WALLEIJ <linus.walleij@...ricsson.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, magnus.p.persson@...ricsson.com, Herbert Xu <herbert@...dor.hengli.com.au>, "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>, Andreas Westin <andreas.westin@...ricsson.com>, Lee Jones <lee.jones@...aro.org>, "David S. Miller" <davem@...emloft.net> Subject: Re: [PATCH 6/9] crypto: ux500/cryp - Set DMA configuration though dma_slave_config() On Fri, Apr 26, 2013 at 11:39:20AM +0200, Arnd Bergmann wrote: > On Friday 26 April 2013 13:46:46 Vinod Koul wrote: > > > > The mapping & unmapping of dma buffer (memcpy and memory buffer in this txn) is > > required to be performed by the client driver. The dmanegine or dmaengine driver > > will not do that for you... > > I've been wondering about this part: since we need to pass the 'struct device' of > the dma engine (rather than the slave) into dma_map_single, what is the official > way to do that? Should the slave driver just rely on dma_chan->device->dev to > work correctly for the purpose of dma-mapping.h interfaces? Yes. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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