Re: DMA_ENGINE: can't use it without selecting a dma engine driver

From: Dragos Tatulea
Date: Wed Jun 17 2009 - 11:12:21 EST


> >
> >        Just discovered that it's impossible to select the dma engine
> > without compiling a dma engine driver from the kernel. What if I want to
> > use a different dma engine?
> >
> Create a Kconfig entry for your driver in drivers/dma/Kconfig and have
> it "select DMA_ENGINE".
That's what I want to avoid. The dma engine driver is out of tree.

What is the rationale behind this? It seems (to me) impossible to have all
such drivers in upstream.

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