CONFIG_EXYNOS4_DEV_PD is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_EXYNOS4_DEV_PD (not configurable)

modulename: dev-pd.ko

configname: CONFIG_EXYNOS4_DEV_PD

Linux Kernel Configuration
└─>SAMSUNG EXYNOS SoCs Support
└─>EXYNOS4_DEV_PD
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
Compile in platform device definitions for Power Domain

source code: