[PATCH 01/35] mfd: ab8500-gpadc: Implemented suspend/resume

[Mark Brown]

On Mon, Feb 25, 2013 at 10:27:36AM +0100, Ulf Hansson wrote:
> On 22 February 2013 11:38, Mark Brown

> > Are you sure this actually does what you think it does, especially when
> > run on modern kernels?

> Not sure, what you are thinking of more precisely here. Runtime pm has
> been in the kernel for quite some time now.

Yes, thanks - I was aware of that.  The integration between runtime and
system PM has been an area that's had some development though.

> Anyway, to make it a bit clearer, we switch the regulator on/off at
> the runtime suspend/resume callbacks. We want to take similar actions
> in device suspend/resume.
> To accomplish this a pm_runtime_get_sync is done in suspend and vice
> verse in resume, otherwise you can not safely handle the regulator.

Are you absolutely positive that with modern kernels your get actually
resumes the device?
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