On Fri, Jun 30, 2017 at 10:43:05AM -0400, Sinan Kaya wrote: > Current code is violating the DMA Engine API by putting the submitted > requests directly into the HW queue. This causes queued transactions > to be started by another thread as soon as the first one finishes. > > The DMA Engine document clearly states this. > > "dmaengine_submit() will not start the DMA operation". > > Move HW queuing of the requests into the issue_pending() routine > to comply with API requirements also create a new queued state for > temporarily holding the requests. > > A descriptor goes through these transitions now. > > free->prepared->queued->active->completed->free > > as opposed to > > free->prepared->active->completed->free Applied, 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
