Re: [PATCH] dmaengine: at_xdmac: fix rare residue corruption

2018-03-27 Thread Vinod Koul
On Thu, Feb 22, 2018 at 12:39:55PM +0100, Maxime Jayat wrote: > Despite the efforts made to correctly read the NDA and CUBC registers, > the order in which the registers are read could sometimes lead to an > inconsistent state. > > Re-using the timeline from the comments, this following timing of

Re: [PATCH] dmaengine: at_xdmac: fix rare residue corruption

2018-03-19 Thread Ludovic Desroches
On Mon, Mar 19, 2018 at 01:26:09PM +0530, Vinod Koul wrote: > On Thu, Mar 01, 2018 at 09:25:16AM +0100, Ludovic Desroches wrote: > > Hi Maxime, > > > > On Thu, Feb 22, 2018 at 12:39:55PM +0100, Maxime Jayat wrote: > > > Despite the efforts made to correctly read the NDA and CUBC registers, > > > t

Re: [PATCH] dmaengine: at_xdmac: fix rare residue corruption

2018-03-19 Thread Vinod Koul
On Thu, Mar 01, 2018 at 09:25:16AM +0100, Ludovic Desroches wrote: > Hi Maxime, > > On Thu, Feb 22, 2018 at 12:39:55PM +0100, Maxime Jayat wrote: > > Despite the efforts made to correctly read the NDA and CUBC registers, > > the order in which the registers are read could sometimes lead to an > >

Re: [PATCH] dmaengine: at_xdmac: fix rare residue corruption

2018-03-01 Thread Ludovic Desroches
Hi Maxime, On Thu, Feb 22, 2018 at 12:39:55PM +0100, Maxime Jayat wrote: > Despite the efforts made to correctly read the NDA and CUBC registers, > the order in which the registers are read could sometimes lead to an > inconsistent state. > > Re-using the timeline from the comments, this followin

[PATCH] dmaengine: at_xdmac: fix rare residue corruption

2018-02-22 Thread Maxime Jayat
Despite the efforts made to correctly read the NDA and CUBC registers, the order in which the registers are read could sometimes lead to an inconsistent state. Re-using the timeline from the comments, this following timing of registers reads could lead to reading NDA with value "@desc2" and CUBC w