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