On Tue, 8 Mar 2016 08:25:47 +0530 Vinod Koul <vinod.k...@intel.com> wrote: > > Why does dmaengine need to wait? Can you explain that
I don't have an answer for that one, but when I set WAIT_CYCLES to 1 for the NAND use case it does not work. So I guess it is somehow related to how the DRQ line is controlled on the device side... -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com