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1 | #ifndef __ASM_ARM_CPUIDLE_H |
2 | #define __ASM_ARM_CPUIDLE_H | |
3 | ||
eeebc3bb DL |
4 | #include <asm/proc-fns.h> |
5 | ||
e1689795 RL |
6 | #ifdef CONFIG_CPU_IDLE |
7 | extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev, | |
8 | struct cpuidle_driver *drv, int index); | |
9 | #else | |
10 | static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev, | |
11 | struct cpuidle_driver *drv, int index) { return -ENODEV; } | |
12 | #endif | |
13 | ||
14 | /* Common ARM WFI state */ | |
15 | #define ARM_CPUIDLE_WFI_STATE_PWR(p) {\ | |
16 | .enter = arm_cpuidle_simple_enter,\ | |
17 | .exit_latency = 1,\ | |
18 | .target_residency = 1,\ | |
19 | .power_usage = p,\ | |
e1689795 RL |
20 | .name = "WFI",\ |
21 | .desc = "ARM WFI",\ | |
22 | } | |
23 | ||
24 | /* | |
25 | * in case power_specified == 1, give a default WFI power value needed | |
26 | * by some governors | |
27 | */ | |
28 | #define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX) | |
29 | ||
449e056c DL |
30 | struct device_node; |
31 | ||
32 | struct cpuidle_ops { | |
33 | int (*suspend)(int cpu, unsigned long arg); | |
34 | int (*init)(struct device_node *, int cpu); | |
35 | }; | |
36 | ||
37 | struct of_cpuidle_method { | |
38 | const char *method; | |
39 | struct cpuidle_ops *ops; | |
40 | }; | |
41 | ||
42 | #define CPUIDLE_METHOD_OF_DECLARE(name, _method, _ops) \ | |
43 | static const struct of_cpuidle_method __cpuidle_method_of_table_##name \ | |
44 | __used __section(__cpuidle_method_of_table) \ | |
45 | = { .method = _method, .ops = _ops } | |
46 | ||
47 | extern int arm_cpuidle_suspend(int index); | |
48 | ||
49 | extern int arm_cpuidle_init(int cpu); | |
50 | ||
e1689795 | 51 | #endif |