Andy Green wrote: > We're talking about OFF state, not suspend. Yes. What we had happen in GTA01 and HXD8 was power crawling into the CPU over GPIOs that were still at a high potential. This in turn came out again on GPIOs going to inputs, such as the PMU's power button input or the GSM reset/button control transistors, where they caused further confusion.
So unless we're absolutely sure no GPIO can ever have a non-zero potential (or only through a very large impedance) while we're in PMU.STANDBY, or transitioning into or out of it, we shouldn't expect GPIOs to be in any defined state. That's why try to control as many signals to subsystems that are active in PMU.STANDBY as possible from PMU GPIOs. And yes, it would be great to have more GPIOs that are guaraneteed to have a defined state in PMU.STANDBY for things like MODEM_RST and MODEM_ON as well. - Werner _______________________________________________ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
