1# SPDX-License-Identifier: GPL-2.0-only 2# 3# ARM CPU Idle drivers 4# 5config ARM_CPUIDLE 6 bool "Generic ARM/ARM64 CPU idle Driver" 7 select DT_IDLE_STATES 8 select CPU_IDLE_MULTIPLE_DRIVERS 9 help 10 Select this to enable generic cpuidle driver for ARM. 11 It provides a generic idle driver whose idle states are configured 12 at run-time through DT nodes. The CPUidle suspend backend is 13 initialized by calling the CPU operations init idle hook 14 provided by architecture code. 15 16config ARM_PSCI_CPUIDLE 17 bool "PSCI CPU idle Driver" 18 depends on ARM_PSCI_FW 19 select DT_IDLE_STATES 20 select CPU_IDLE_MULTIPLE_DRIVERS 21 help 22 Select this to enable PSCI firmware based CPUidle driver for ARM. 23 It provides an idle driver that is capable of detecting and 24 managing idle states through the PSCI firmware interface. 25 26config ARM_PSCI_CPUIDLE_DOMAIN 27 bool "PSCI CPU idle Domain" 28 depends on ARM_PSCI_CPUIDLE 29 depends on PM_GENERIC_DOMAINS_OF 30 select DT_IDLE_GENPD 31 default y 32 help 33 Select this to enable the PSCI based CPUidle driver to use PM domains, 34 which is needed to support the hierarchical DT based layout of the 35 idle states. 36 37config ARM_BIG_LITTLE_CPUIDLE 38 bool "Support for ARM big.LITTLE processors" 39 depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST 40 depends on MCPM && !ARM64 41 select ARM_CPU_SUSPEND 42 select CPU_IDLE_MULTIPLE_DRIVERS 43 select DT_IDLE_STATES 44 help 45 Select this option to enable CPU idle driver for big.LITTLE based 46 ARM systems. Driver manages CPUs coordination through MCPM and 47 define different C-states for little and big cores through the 48 multiple CPU idle drivers infrastructure. 49 50config ARM_CLPS711X_CPUIDLE 51 bool "CPU Idle Driver for CLPS711X processors" 52 depends on ARCH_CLPS711X && !ARM64 || COMPILE_TEST 53 help 54 Select this to enable cpuidle on Cirrus Logic CLPS711X SOCs. 55 56config ARM_HIGHBANK_CPUIDLE 57 bool "CPU Idle Driver for Calxeda processors" 58 depends on ARM_PSCI && !ARM64 59 select ARM_CPU_SUSPEND 60 help 61 Select this to enable cpuidle on Calxeda processors. 62 63config ARM_KIRKWOOD_CPUIDLE 64 bool "CPU Idle Driver for Marvell Kirkwood SoCs" 65 depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64 66 help 67 This adds the CPU Idle driver for Marvell Kirkwood SoCs. 68 69config ARM_ZYNQ_CPUIDLE 70 bool "CPU Idle Driver for Xilinx Zynq processors" 71 depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64 72 help 73 Select this to enable cpuidle on Xilinx Zynq processors. 74 75config ARM_U8500_CPUIDLE 76 bool "Cpu Idle Driver for the ST-E u8500 processors" 77 depends on ARCH_U8500 && !ARM64 78 help 79 Select this to enable cpuidle for ST-E u8500 processors. 80 81config ARM_AT91_CPUIDLE 82 bool "Cpu Idle Driver for the AT91 processors" 83 default y 84 depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64 85 help 86 Select this to enable cpuidle for AT91 processors. 87 88config ARM_EXYNOS_CPUIDLE 89 bool "Cpu Idle Driver for the Exynos processors" 90 depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64 91 select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP 92 help 93 Select this to enable cpuidle for Exynos processors. 94 95config ARM_MVEBU_V7_CPUIDLE 96 bool "CPU Idle Driver for mvebu v7 family processors" 97 depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64 98 help 99 Select this to enable cpuidle on Armada 370, 38x and XP processors. 100 101config ARM_TEGRA_CPUIDLE 102 bool "CPU Idle Driver for NVIDIA Tegra SoCs" 103 depends on (ARCH_TEGRA || COMPILE_TEST) && !ARM64 && MMU 104 select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP 105 select ARM_CPU_SUSPEND 106 help 107 Select this to enable cpuidle for NVIDIA Tegra20/30/114/124 SoCs. 108 109config ARM_QCOM_SPM_CPUIDLE 110 bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)" 111 depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU 112 select ARM_CPU_SUSPEND 113 select CPU_IDLE_MULTIPLE_DRIVERS 114 select DT_IDLE_STATES 115 select QCOM_SCM 116 select QCOM_SPM 117 help 118 Select this to enable cpuidle for Qualcomm processors. 119 The Subsystem Power Manager (SPM) controls low power modes for the 120 CPU and L2 cores. It interface with various system drivers to put 121 the cores in low power modes. 122