On Tue, Oct 29, 2013 at 11:10:37AM +1100, NeilBrown wrote: > Yes, the device is soldered down and has a reset line that needs to be pulsed > low at about the same time that the MMC port enables the regulator.
> How do you propose that I describe this? Which driver should know about the > reset GPIO, how to I tell it about the GPIO, and which function should do the > pulsing? I'd expect the driver for the device to know about this, obviously depending on what this actually does it might want to use this at runtime (for example, putting the device into reset to minimise power while it's idle). We really need a generic way for devices such as this on enumerable buses to run before the current probe() in order to allow them to manage their power up sequences in embedded systems, this is *far* from a unique situation.
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