[alsa-devel] [PATCH 13/18] ARM: ux500: Add ux500 PCM to DB8500 Device Tree

Mark Brown broonie at opensource.wolfsonmicro.com
Mon Jul 30 17:02:53 CEST 2012

On Mon, Jul 30, 2012 at 03:26:58PM +0100, Lee Jones wrote:
> On 30/07/12 14:40, Mark Brown wrote:

> >>We use it register the driver for probe()ing. In the same way we do
> >>for the PMU and Regulators. All three of which actually belong to a
> >>different hardware block. Do you know of a better way to register
> >>those devices?

> >You've not identified which of the two cases above we're in...  assuming
> >it's a virtal device look at how the DT bindings for the other platforms
> >are doing things.

> I thought it would have been obvious by my response. The PMU seems
> to be a virtual device with no registers or IRQs.

That's not at all obvious, no.

> I've found a DT which seems to do it in the same way as I do
> 'arch/powerpc/boot/dts/p1022ds.dts', but some others call PCM
> registration from the CPU-side DAI probe(). Would that be your
> preference?

Yes, do what the other drivers are doing

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