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- # SPDX-License-Identifier: GPL-2.0-only
- #
- # ARM CPU Idle drivers
- #
- config ARM_CPUIDLE
- bool "Generic ARM CPU idle Driver"
- depends on ARM
- select DT_IDLE_STATES
- select CPU_IDLE_MULTIPLE_DRIVERS
- help
- Select this to enable generic cpuidle driver for ARM.
- It provides a generic idle driver whose idle states are configured
- at run-time through DT nodes. The CPUidle suspend backend is
- initialized by calling the CPU operations init idle hook
- provided by architecture code.
- config ARM_PSCI_CPUIDLE
- bool "PSCI CPU idle Driver"
- depends on ARM_PSCI_FW
- select DT_IDLE_STATES
- select CPU_IDLE_MULTIPLE_DRIVERS
- help
- Select this to enable PSCI firmware based CPUidle driver for ARM.
- It provides an idle driver that is capable of detecting and
- managing idle states through the PSCI firmware interface.
- config ARM_PSCI_CPUIDLE_DOMAIN
- bool "PSCI CPU idle Domain"
- depends on ARM_PSCI_CPUIDLE
- depends on PM_GENERIC_DOMAINS_OF
- select DT_IDLE_GENPD
- default y
- help
- Select this to enable the PSCI based CPUidle driver to use PM domains,
- which is needed to support the hierarchical DT based layout of the
- idle states.
- config ARM_BIG_LITTLE_CPUIDLE
- bool "Support for ARM big.LITTLE processors"
- depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST
- depends on MCPM && !ARM64
- select ARM_CPU_SUSPEND
- select CPU_IDLE_MULTIPLE_DRIVERS
- select DT_IDLE_STATES
- help
- Select this option to enable CPU idle driver for big.LITTLE based
- ARM systems. Driver manages CPUs coordination through MCPM and
- define different C-states for little and big cores through the
- multiple CPU idle drivers infrastructure.
- config ARM_CLPS711X_CPUIDLE
- bool "CPU Idle Driver for CLPS711X processors"
- depends on ARCH_CLPS711X && !ARM64 || COMPILE_TEST
- help
- Select this to enable cpuidle on Cirrus Logic CLPS711X SOCs.
- config ARM_HIGHBANK_CPUIDLE
- bool "CPU Idle Driver for Calxeda processors"
- depends on ARM_PSCI && !ARM64
- select ARM_CPU_SUSPEND
- help
- Select this to enable cpuidle on Calxeda processors.
- config ARM_KIRKWOOD_CPUIDLE
- bool "CPU Idle Driver for Marvell Kirkwood SoCs"
- depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64
- help
- This adds the CPU Idle driver for Marvell Kirkwood SoCs.
- config ARM_ZYNQ_CPUIDLE
- bool "CPU Idle Driver for Xilinx Zynq processors"
- depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64
- help
- Select this to enable cpuidle on Xilinx Zynq processors.
- config ARM_U8500_CPUIDLE
- bool "Cpu Idle Driver for the ST-E u8500 processors"
- depends on ARCH_U8500 && !ARM64
- help
- Select this to enable cpuidle for ST-E u8500 processors.
- config ARM_AT91_CPUIDLE
- bool "Cpu Idle Driver for the AT91 processors"
- default y
- depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64
- help
- Select this to enable cpuidle for AT91 processors.
- config ARM_EXYNOS_CPUIDLE
- bool "Cpu Idle Driver for the Exynos processors"
- depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64
- select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
- help
- Select this to enable cpuidle for Exynos processors.
- config ARM_MVEBU_V7_CPUIDLE
- bool "CPU Idle Driver for mvebu v7 family processors"
- depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64
- help
- Select this to enable cpuidle on Armada 370, 38x and XP processors.
- config ARM_TEGRA_CPUIDLE
- bool "CPU Idle Driver for NVIDIA Tegra SoCs"
- depends on (ARCH_TEGRA || COMPILE_TEST) && !ARM64 && MMU
- depends on ARCH_SUSPEND_POSSIBLE
- select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
- select ARM_CPU_SUSPEND
- help
- Select this to enable cpuidle for NVIDIA Tegra20/30/114/124 SoCs.
- config ARM_QCOM_SPM_CPUIDLE
- bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)"
- depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU
- depends on ARCH_SUSPEND_POSSIBLE
- select ARM_CPU_SUSPEND
- select CPU_IDLE_MULTIPLE_DRIVERS
- select DT_IDLE_STATES
- select QCOM_SCM
- select QCOM_SPM
- help
- Select this to enable cpuidle for Qualcomm processors.
- The Subsystem Power Manager (SPM) controls low power modes for the
- CPU and L2 cores. It interface with various system drivers to put
- the cores in low power modes.
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