linux-kernel - Re: [PATCH 0/4] Fix the left DMA_NONE from dma_transfer

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Date:	Wed, 21 Dec 2011 12:58:06 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Vinod Koul <vinod.koul@...el.com>
CC:	Chris Ball <cjb@...top.org>,
	Artem Bityutskiy <artem.bityutskiy@...el.com>,
	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Huang Shijie <b32955@...escale.com>,
	<linux-mtd@...ts.infradead.org>, Shawn Guo <shawn.guo@...aro.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 0/4] Fix the left DMA_NONE from dma_transfer_direction
 migration

On Wed, Dec 21, 2011 at 10:10:51AM +0530, Vinod Koul wrote:
> On Wed, 2011-12-21 at 12:45 +0800, Shawn Guo wrote:
> > > 
> > The term PIO here may not the one on your mind.  I call it 'mxs-dma
> > pio'.  In this mode, mxs-dma hardware can write values into mmc
> > controller register without cpu involved.
> what do you mean by values here?
> 
The register values that we want to write to mmc controller registers
in this case.

-- 
Regards,
Shawn

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