Hello Florian and Jim, On Wed, Jan 6, 2016 at 10:55 AM, Florian Fainelli <f.fainelli@xxxxxxxxx> wrote: > From: Jim Quinlan <jim2101024@xxxxxxxxx> > > Because regulators are started with subsys_initcall(), and gpio references may > be contained in the regulators, it makes sense to start the brcmstb-gpio's with > a subsys_initcall(). The order within the drivers/Makefile ensures that the > gpio initialization happens prior to the regulator's initialization. > > We need to unroll module_platform_driver() now to allow this and have custom > exit and init module functions to control the initialization level. If gpio pins are needed for a regulator to come up, wouldn't it be better to handle this using deferred probe instead of initcall-based initialization? Deferred probe has its problems, but I was under the impression that it's the encouraged way to resolve these sort of initialization order issues. Best regards, Gregory