On Mon, May 22, 2017 at 04:05:21PM +0200, Alexander Sverdlin wrote: > This series finally makes memory<->device DMA on ep93xx robust/usable. > > First patch addresses long standing bug where the driver went out of sync > with DMA controller and started transfer from buffer1 even though DMA HW > expected the transfer to start from buffer0. This lead to frequent hearable > audio distortions (on start/stop) and not so frequent system freezes > (seems that DMA has overwritten unexpected RAM locations). Both problems > are gone now. > > Second patch addresses high IRQ latency caused by the driver which actually > completely prevents usage of EDB93xx audio and/or DMA drivers together with > ep93xx watchdog driver. The later resets 250ms HW timer with 200ms period > and is not able to do it with just slight load + ~40ms latency caused by > DMA driver. Applied both, thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
