On Thu, Mar 23, 2023 at 05:45:31PM +0000, Charles Keepax wrote: > I think really the best place to look at this would be at the > regulator level. It is fine if mfd_add_devices passes, the problem > really is that the regulator core doesn't realise the regulator is > going to be arriving, and thus returns a dummy regulator, rather > than returning EPROBE_DEFER. If it did the MFD driver would probe > defer at the point of requesting the regulator, which would all > make sense. You need the MFD to tell the regulator subsystem that there's a regulator bound there, or to force all the users to explicitly do the mapping of the regulator in their firmwares (which isn't really a viable approach).
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