1# 2# ARM CPU Idle drivers 3# 4config ARM_CPUIDLE 5 bool "Generic ARM/ARM64 CPU idle Driver" 6 select DT_IDLE_STATES 7 help 8 Select this to enable generic cpuidle driver for ARM. 9 It provides a generic idle driver whose idle states are configured 10 at run-time through DT nodes. The CPUidle suspend backend is 11 initialized by calling the CPU operations init idle hook 12 provided by architecture code. 13 14config ARM_BIG_LITTLE_CPUIDLE 15 bool "Support for ARM big.LITTLE processors" 16 depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS 17 depends on MCPM && !ARM64 18 select ARM_CPU_SUSPEND 19 select CPU_IDLE_MULTIPLE_DRIVERS 20 select DT_IDLE_STATES 21 help 22 Select this option to enable CPU idle driver for big.LITTLE based 23 ARM systems. Driver manages CPUs coordination through MCPM and 24 define different C-states for little and big cores through the 25 multiple CPU idle drivers infrastructure. 26 27config ARM_CLPS711X_CPUIDLE 28 bool "CPU Idle Driver for CLPS711X processors" 29 depends on ARCH_CLPS711X && !ARM64 || COMPILE_TEST 30 help 31 Select this to enable cpuidle on Cirrus Logic CLPS711X SOCs. 32 33config ARM_HIGHBANK_CPUIDLE 34 bool "CPU Idle Driver for Calxeda processors" 35 depends on ARM_PSCI && !ARM64 36 select ARM_CPU_SUSPEND 37 help 38 Select this to enable cpuidle on Calxeda processors. 39 40config ARM_KIRKWOOD_CPUIDLE 41 bool "CPU Idle Driver for Marvell Kirkwood SoCs" 42 depends on MACH_KIRKWOOD && !ARM64 43 help 44 This adds the CPU Idle driver for Marvell Kirkwood SoCs. 45 46config ARM_ZYNQ_CPUIDLE 47 bool "CPU Idle Driver for Xilinx Zynq processors" 48 depends on ARCH_ZYNQ && !ARM64 49 help 50 Select this to enable cpuidle on Xilinx Zynq processors. 51 52config ARM_U8500_CPUIDLE 53 bool "Cpu Idle Driver for the ST-E u8500 processors" 54 depends on ARCH_U8500 && !ARM64 55 help 56 Select this to enable cpuidle for ST-E u8500 processors 57 58config ARM_AT91_CPUIDLE 59 bool "Cpu Idle Driver for the AT91 processors" 60 default y 61 depends on ARCH_AT91 && !ARM64 62 help 63 Select this to enable cpuidle for AT91 processors 64 65config ARM_EXYNOS_CPUIDLE 66 bool "Cpu Idle Driver for the Exynos processors" 67 depends on ARCH_EXYNOS && !ARM64 68 select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP 69 help 70 Select this to enable cpuidle for Exynos processors 71 72config ARM_MVEBU_V7_CPUIDLE 73 bool "CPU Idle Driver for mvebu v7 family processors" 74 depends on ARCH_MVEBU && !ARM64 75 help 76 Select this to enable cpuidle on Armada 370, 38x and XP processors. 77