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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