* Samsung Exynos Power Domains

Exynos processors include support for multiple power domains which are used
to gate power to one or more peripherals on the processor.

Required Properties:
- compatiable: should be one of the following.
    * samsung,exynos4210-pd - for exynos4210 type power domain.
- reg: physical base address of the controller and length of memory mapped
    region.

Optional Properties:
- samsung,exynos4210-pd-off: Specifies that the power domain is in turned-off
    state during boot and remains to be turned-off until explicitly turned-on.

Example:

	lcd0: power-domain-lcd0 {
		compatible = "samsung,exynos4210-pd";
		reg = <0x10023C00 0x10>;
	};