[PATCH RESEND] dma: mmp_pdma: add support for residue reporting

[Vinod Koul]

On Wed, Apr 16, 2014 at 04:59:13PM +0200, Daniel Mack wrote:
> On 04/16/2014 11:09 AM, Vinod Koul wrote:
> > On Wed, Apr 16, 2014 at 10:38:10AM +0200, Daniel Mack wrote:
> >>>> It might add to the readability of the drivers, but for the current
> >>>> case, I don't think it's really necessary.
> >>> That is because you are maintaining the current descriptors in chain_running. If
> >>> we use above method then you dont need to use this, right?
> >>
> >> Jup, but that would result in a rewrite of larger parts of the code. The
> >> concept of hot-linking the two list so there's only one resulting list
> >> of currently active descriptors is built-in deeply into the driver's
> >> concept.
> > Ah I suspected so :)
> > 
> > I think for now this is fine you can perhaps upgrade this later :)
> 
> So, do you want me to resend with the minor dma_set_residue() change?
Yes please...

-- 
~Vinod