Hi, On Tue, Aug 13, 2013 at 07:49:43PM +0200, Sebastian Andrzej Siewior wrote: > This patch defines four types of current supported DMA engines and > assignes them to each dma engine. This should get rid of a few ifdefs > later on. > > Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
I would *really* like to avoid this construct. Mainly because it's possible to have the same programming model (from MUSB's point of view) to start a DMA transfer. What I mean is that the correct way to set [RT]XCSR is the same no matter which engine you're using. For DMA-specific parts, we already have ->channel_program() abstracting that out. -- balbi
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