Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-11-15 Thread Dave Jiang
On 11/15/2017 09:13 AM, Stefan Roese wrote: > Hi Vinod, > > On 15.11.2017 16:52, Vinod Koul wrote: >> On Mon, Nov 13, 2017 at 09:28:46AM +0100, Stefan Roese wrote: >>> Hi Vinod, >>> >>> On 31.08.2017 12:57, Robin Murphy wrote: On 30/08/17 19:25, Dave Jiang wrote: > On 08/30/2017 11:18 A

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-11-15 Thread Stefan Roese
Hi Vinod, On 15.11.2017 16:52, Vinod Koul wrote: On Mon, Nov 13, 2017 at 09:28:46AM +0100, Stefan Roese wrote: Hi Vinod, On 31.08.2017 12:57, Robin Murphy wrote: On 30/08/17 19:25, Dave Jiang wrote: On 08/30/2017 11:18 AM, Robin Murphy wrote: On 25/08/17 21:59, Dave Jiang wrote: Adding a d

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-11-15 Thread Vinod Koul
On Mon, Nov 13, 2017 at 09:28:46AM +0100, Stefan Roese wrote: > Hi Vinod, > > On 31.08.2017 12:57, Robin Murphy wrote: > >On 30/08/17 19:25, Dave Jiang wrote: > >>On 08/30/2017 11:18 AM, Robin Murphy wrote: > >>>On 25/08/17 21:59, Dave Jiang wrote: > Adding a dmaengine transaction operation th

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-11-13 Thread Stefan Roese
Hi Vinod, On 31.08.2017 12:57, Robin Murphy wrote: On 30/08/17 19:25, Dave Jiang wrote: On 08/30/2017 11:18 AM, Robin Murphy wrote: On 25/08/17 21:59, Dave Jiang wrote: Adding a dmaengine transaction operation that allows copy to/from a scatterlist and a flat buffer. Apologies if I'm late t

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-08-31 Thread Robin Murphy
On 30/08/17 19:25, Dave Jiang wrote: > On 08/30/2017 11:18 AM, Robin Murphy wrote: >> On 25/08/17 21:59, Dave Jiang wrote: >>> Adding a dmaengine transaction operation that allows copy to/from a >>> scatterlist and a flat buffer. >> >> Apologies if I'm late to the party, but doesn't DMA_SG already

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-08-30 Thread Dave Jiang
On 08/30/2017 11:18 AM, Robin Murphy wrote: > On 25/08/17 21:59, Dave Jiang wrote: >> Adding a dmaengine transaction operation that allows copy to/from a >> scatterlist and a flat buffer. > > Apologies if I'm late to the party, but doesn't DMA_SG already cover > this use-case? As far as I can see,

Re: [v6,2/8] dmaengine: Add DMA_MEMCPY_SG transaction op

2017-08-30 Thread Robin Murphy
On 25/08/17 21:59, Dave Jiang wrote: > Adding a dmaengine transaction operation that allows copy to/from a > scatterlist and a flat buffer. Apologies if I'm late to the party, but doesn't DMA_SG already cover this use-case? As far as I can see, all this does is save the caller from setting up a si