Re: [RESEND PATCH] dmaengine: at_xdmac: fix residue computation

From: Vinod Koul
Date: Thu Mar 10 2016 - 06:05:30 EST

On Thu, Mar 10, 2016 at 10:17:55AM +0100, Ludovic Desroches wrote:
> When computing the residue we need two pieces of information: the current
> descriptor and the remaining data of the current descriptor. To get
> that information, we need to read consecutively two registers but we
> can't do it in an atomic way. For that reason, we have to check manually
> that current descriptor has not changed.

Applied, thanks