On Fri, Nov 28, 2014 at 11:54:32AM +0800, Flora Fu wrote:

> +- compatible: "mediatek,mt6397"
> +- regulators: This is the list of child nodes that specify the regulator
> +  initialization data for defined regulators. The definition for each of these
> +  nodes is defined using the standard binding for regulators found at
> +  Documentation/devicetree/bindings/regulator/regulator.txt.

You need to specify which regulator names are valid and how they
correspond to the hardware as part of the binding.