On Tue, Apr 26, 2016 at 05:37:04PM +0300, Andy Shevchenko wrote: > On Sun, Apr 24, 2016 at 9:44 PM, Ramon Fried <ramon.fr...@tandemg.com> wrote: > > I'm looking of a way to validate a DMA engine driver I've written. > > I came across dmatest module and while reading the code I've noticed that > > scatter-gather DMA mode is not implemented. > > I wonder if anyone one knows the reason, and if such enhancement will be > > welcome as a patch. > > You meant the actual slave interaction? How can you implement this in > a generic way? > For example we are using an SPI controller in loopback mode to check DMA > driver. > In your case it might be something really specific. > > Otherwise you may try mem copy functionality if your DMA engine supports such.
I think he means dma copy using sg lists, see the patch posted today for that -- ~Vinod
