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I suppose > > > > it is fixed when board design. > > > > > > It is just a GPIO, it can have either polarity depending on the regulator > > > that it controls. > > > > Understand, But the problem is why polarity change after board design? > > > > If reg_panel_vcc is on added on boards, should it be in dtso file also to > > match your hardware design correctly? > > We want to avoid duplication in the DTOs files, do we not ? Yes, but there are not dtso file yet, I don't know how to share it yet. > > Hence, base common stuff in the base DT, stuff that changes in the DTOs. Idea is good, but avoid hack stuff. Can you show me what's plan use reg_panel_vcc in dtso and how to share it. Frank