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

[Laxman Dewangan]

On Friday 13 July 2012 08:45 AM, Vinod Koul wrote:
> On Mon, 2012-07-02 at 10:02 -0600, Stephen Warren wrote:
> > 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.
> No core doesn't know anything about the how much you are transferring
> and where you are. That is the driver to calculate and provide.

Just for confirmation, are you going to apply this patch or do I need to 
do anything here.

Thanks,
Laxman

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