On Fri, Feb 21, 2020 at 12:36:39PM +0900, Jaedon Shin wrote:

> +  supply-names:
> +    description: List of regulator supplies to use for PCIe
> +

No, this isn't a good idea - the set of supplies the device has is
fixed when the silicon is produced, it's not something that needs to
vary per board.  This means that the binding should have a fixed list of
supplies, per SoC if that's needed.