On Tue, Sep 30, 2014 at 07:00:36PM +0100, Mark Brown wrote: > On Tue, Sep 30, 2014 at 08:03:14AM +0200, Thierry Reding wrote: [...] > > Of course as Geert pointed out in another subthread, taking this all the > > way means that we have to disable all power management because the > > firmware device may be sharing resources with other devices and which > > therefore are not unused. That's a pretty strong argument and I don't > > have a solution for that. It is only really a problem for cases where > > the firmware virtual device isn't taken over by a proper driver at some > > point, though. > > Indeed, and we also run into trouble for things where we actually need > to really turn off the resource for some reason (MMC has some needs here > for example). Perhaps an alternative would be to just keep power management going and hope for the best. This may turn out not to be as much of a problem for many SoCs or boards as people make it out to be. Thierry
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