Re: [PATCH 2/2] dma: tegra: fix residual calculation for cyclic case

From: Stephen Warren
Date: Mon Jul 02 2012 - 12:02:49 EST

On 07/02/2012 02:22 AM, Laxman Dewangan wrote:
> In cyclic mode of DMA, the byte transferred can be more
> than the requested size and in this case, calculating
> residuals based on the current position of DMA transfer to
> bytes requested i.e. bytes required to transfer to reach
> bytes requested from current DMA position.
> Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>

This makes sense to me, although I wonder if details like this aren't
something that the dmaengine core should be handling.

Acked-by: Stephen Warren <swarren@xxxxxxxxxxxxx>
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