On Tue, Jun 7, 2011 at 1:45 PM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > On Tue, Jun 07, 2011 at 01:39:43PM +0530, Jassi Brar wrote: >> Unfortunately, no. There are some features of Samsung's DMA API that >> the drivers have come to rely upon. >> Besides, I am not particularly a fan of the generic API. And IIRC, >> neither is Ben Dooks, the designer of the >> Samsung's DMA API. > > We are now at the point where this is non-optional. ÂIf the generic API > doesn't fit what Samsung needs, then that needs to be discussed and > whatever problems there are need to be resolved. The discussion did take off a few months ago, but we didn't reach anywhere. Being able to queue request from the 'done' callback, the need of circular buffer API (possibly a free-running one too) and callbacks in irq-context, as they happen, were a few requirements for having fast peripherals with shallow fifo work without underruns. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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