Hi! > > If they use GPIO lines on chip that eats so much power that it must be > > power-managed... yes, I'd call that broken hardware. > > By virtue of being in the driver model, it _is_ managed no > matter how much power it uses (or doesn't use). The issue > isn't how much power it uses. It's the expectation that all > power signals only flow parallel to data and control busses, > as they would on daughtercard based designs. > > I'd tend to agree with hardware guys on this one: this is > such a simple case that only broken _software_ should have > trouble handling it. > > > > Of course, current pm core *is* inadequate for even simple uses... > > Right, and GPIO based power switching is a "simple use". > Luckily the init sequence tweaks I described make Linux > work with it, until selective suspend kicks in. Well, GPIO power switching should be very easy to handle ... as long as path between CPU and GPIO-based-power-switches takes little power. When we don't have to power-manage the path between CPU and GPIO-based-power-switches, we are fine... Pavel -- Boycott Kodak -- for their patent abuse against Java.
