1menu "CPU Idle" 2 3config CPU_IDLE 4 bool "CPU idle PM support" 5 default y if ACPI || PPC_PSERIES 6 select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE) 7 select CPU_IDLE_GOV_MENU if (NO_HZ || NO_HZ_IDLE) 8 help 9 CPU idle is a generic framework for supporting software-controlled 10 idle processor power management. It includes modular cross-platform 11 governors that can be swapped during runtime. 12 13 If you're using an ACPI-enabled platform, you should say Y here. 14 15if CPU_IDLE 16 17config CPU_IDLE_MULTIPLE_DRIVERS 18 bool "Support multiple cpuidle drivers" 19 default n 20 help 21 Allows the cpuidle framework to use different drivers for each CPU. 22 This is useful if you have a system with different CPU latencies and 23 states. If unsure say N. 24 25config CPU_IDLE_GOV_LADDER 26 bool "Ladder governor (for periodic timer tick)" 27 default y 28 29config CPU_IDLE_GOV_MENU 30 bool "Menu governor (for tickless system)" 31 default y 32 33menu "ARM CPU Idle Drivers" 34depends on ARM 35source "drivers/cpuidle/Kconfig.arm" 36endmenu 37 38endif 39 40config ARCH_NEEDS_CPU_IDLE_COUPLED 41 def_bool n 42endmenu 43