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