On Mon, Mar 16, 2015 at 06:45:18PM +0000, Charles Keepax wrote: > I think your suspend example is pretty tricky, we enable the > regulators for the core_supplies at boot, so I guess we have > requested that the system never removes those so if it does so > anyway perhaps that is a system problem? There isn't really
No, there's no guarantee that the current state is maintained over system suspend - system suspend can turn anything off (at least from an API point of view). > That would leave the only possible solution being a hard reset > during every runtime resume but that makes me very nervous about > the AoD interrupts as state for those would be lost upon that > reset. No, you're guaranteed that the supply will stay on while the system is running so runtime PM is not an issue - it's system suspend that's an issue. > All in all, I really struggle to see what more the driver could > do here. As I suggested in my original reply handle system suspend.
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