On Mon, Oct 09, 2017 at 06:35:14PM +0300, Tero Kristo wrote: > The EN signal coming in to the PMIC is actually used to poweroff the system > completely. There is no other mechanism for doing this in lp873x based > systems, they removed the bit for controlling dev-power-off from the > register space. If the EN bit is down for a specific regulator, it won't go > down when attempting to poweroff the system, otherwise the state of a > regulator is the result of (EN_PIN | EN_BIT). This should be clear from the changelog (and probably the code as well). > I wonder if we should tie this somehow to the system-power-controller > property though.... If the PMIC is not system-power-controller, we should > disable the EN_PIN_CTRL from all regulators so that they don't go down if > the EN_PIN itself is floating for example. Seems plausible, if someone does decided to use control at runtime the behaviour can always be changed if the GPIO is present.
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