[alsa-devel] [PATCH] ARM: kirkwood: extend the kirkwood pcm/dma driver for DT usage

Mark Brown broonie at kernel.org
Tue Jul 23 15:29:48 CEST 2013

On Tue, Jul 23, 2013 at 02:23:14PM +0100, Russell King - ARM Linux wrote:
> On Tue, Jul 23, 2013 at 01:57:56PM +0100, Mark Brown wrote:

> > This device has no registers or other hardware - this looks like a stub
> > device which shouldn't be visible in DT but should instead be created by
> > the I2S driver - look at how most of the other DT platforms using
> > dmaengine work.

> There is no separate DMA engine on this platform.  dmaengine is totally
> irrelevant to this hardware.

The pattern for instantiating a DMA controller that's integrated into
the DAI is the same as that where the DMA controller is a shared IP
accessed via dmaengine so it's still useful to look at these platforms
to see how to do the instnatiation.
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