[alsa-devel] SoC pxa2xx-ac97 + wm9705 + touchscreen suspend/resume

Mark Brown broonie at sirena.org.uk
Thu Apr 2 14:18:03 CEST 2009

On Thu, Apr 02, 2009 at 01:13:48PM +0100, Russell King - ARM Linux wrote:

> My machine driver is very simple and doesn't implement any suspend/resume
> callbacks (that's what other things like soc-audio are doing, right?)

Yes, that's normal - you should only need to implement suspend and
resume callbacks for the machine if there is extra hardware on the board
that is handled by the machine driver.

> I've tried both your patches, and I still have to manually write to
> GCR to bring the bus out of reset.  I'll investigate more in the coming
> days.

Which PXA variant is the system using?

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