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SAMSUNG Exynos SoC series PMU Registers

Properties:
 - compatible : should contain two values. First value must be one from following list:
		   - "samsung,exynos3250-pmu" - for Exynos3250 SoC,
		   - "samsung,exynos4210-pmu" - for Exynos4210 SoC,
		   - "samsung,exynos4212-pmu" - for Exynos4212 SoC,
		   - "samsung,exynos4412-pmu" - for Exynos4412 SoC,
		   - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
		   - "samsung,exynos5410-pmu" - for Exynos5410 SoC,
		   - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
		second value must be always "syscon".

 - reg : offset and length of the register set.

Example :
pmu_system_controller: system-controller@10040000 {
	compatible = "samsung,exynos5250-pmu", "syscon";
	reg = <0x10040000 0x5000>;
};