On Tue, Feb 12, 2019 at 04:40:10PM +0800, Baolin Wang wrote: > On Fri, 1 Feb 2019 at 21:05, Mark Brown <broonie@xxxxxxxxxx> wrote: > > You can just list all the individual device names in the of_match_table > > for the MFD and then it can bind to any of them. You can always map > > them onto the same behaviour in the MFD driver if they are identical > > from a software point of view. > If I understood correctly, as you suggested, we should add new > mfd_cell groups to list all different PMICs' device names. Something > like: I do think this is a good idea (registering the components of the MFD using mfd_cell), though it wasn't quite the point I was making. Having individual device names matters less for Linux-internal names like this. > But from my point, they are just some meaningless duplication, and > will waste lots of code there. I was more thinking of the of_match table that has the IDs that appear in DT - they're the one that's the ABI. Look at something like wm8994 where the driver has several IDs listed in the main table then selects function drivers based on that.
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