diff options
Diffstat (limited to 'arch/arm/mach-shmobile/cpuidle.c')
-rw-r--r-- | arch/arm/mach-shmobile/cpuidle.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/arch/arm/mach-shmobile/cpuidle.c b/arch/arm/mach-shmobile/cpuidle.c index 2e44f11f592e..1b2334277e85 100644 --- a/arch/arm/mach-shmobile/cpuidle.c +++ b/arch/arm/mach-shmobile/cpuidle.c | |||
@@ -26,65 +26,59 @@ void (*shmobile_cpuidle_modes[CPUIDLE_STATE_MAX])(void) = { | |||
26 | }; | 26 | }; |
27 | 27 | ||
28 | static int shmobile_cpuidle_enter(struct cpuidle_device *dev, | 28 | static int shmobile_cpuidle_enter(struct cpuidle_device *dev, |
29 | struct cpuidle_state *state) | 29 | struct cpuidle_driver *drv, |
30 | int index) | ||
30 | { | 31 | { |
31 | ktime_t before, after; | 32 | ktime_t before, after; |
32 | int requested_state = state - &dev->states[0]; | ||
33 | 33 | ||
34 | dev->last_state = &dev->states[requested_state]; | ||
35 | before = ktime_get(); | 34 | before = ktime_get(); |
36 | 35 | ||
37 | local_irq_disable(); | 36 | local_irq_disable(); |
38 | local_fiq_disable(); | 37 | local_fiq_disable(); |
39 | 38 | ||
40 | shmobile_cpuidle_modes[requested_state](); | 39 | shmobile_cpuidle_modes[index](); |
41 | 40 | ||
42 | local_irq_enable(); | 41 | local_irq_enable(); |
43 | local_fiq_enable(); | 42 | local_fiq_enable(); |
44 | 43 | ||
45 | after = ktime_get(); | 44 | after = ktime_get(); |
46 | return ktime_to_ns(ktime_sub(after, before)) >> 10; | 45 | dev->last_residency = ktime_to_ns(ktime_sub(after, before)) >> 10; |
46 | |||
47 | return index; | ||
47 | } | 48 | } |
48 | 49 | ||
49 | static struct cpuidle_device shmobile_cpuidle_dev; | 50 | static struct cpuidle_device shmobile_cpuidle_dev; |
50 | static struct cpuidle_driver shmobile_cpuidle_driver = { | 51 | static struct cpuidle_driver shmobile_cpuidle_driver = { |
51 | .name = "shmobile_cpuidle", | 52 | .name = "shmobile_cpuidle", |
52 | .owner = THIS_MODULE, | 53 | .owner = THIS_MODULE, |
54 | .states[0] = { | ||
55 | .name = "C1", | ||
56 | .desc = "WFI", | ||
57 | .exit_latency = 1, | ||
58 | .target_residency = 1 * 2, | ||
59 | .flags = CPUIDLE_FLAG_TIME_VALID, | ||
60 | }, | ||
61 | .safe_state_index = 0, /* C1 */ | ||
62 | .state_count = 1, | ||
53 | }; | 63 | }; |
54 | 64 | ||
55 | void (*shmobile_cpuidle_setup)(struct cpuidle_device *dev); | 65 | void (*shmobile_cpuidle_setup)(struct cpuidle_driver *drv); |
56 | 66 | ||
57 | static int shmobile_cpuidle_init(void) | 67 | static int shmobile_cpuidle_init(void) |
58 | { | 68 | { |
59 | struct cpuidle_device *dev = &shmobile_cpuidle_dev; | 69 | struct cpuidle_device *dev = &shmobile_cpuidle_dev; |
60 | struct cpuidle_state *state; | 70 | struct cpuidle_driver *drv = &shmobile_cpuidle_driver; |
61 | int i; | 71 | int i; |
62 | 72 | ||
63 | cpuidle_register_driver(&shmobile_cpuidle_driver); | 73 | for (i = 0; i < CPUIDLE_STATE_MAX; i++) |
64 | 74 | drv->states[i].enter = shmobile_cpuidle_enter; | |
65 | for (i = 0; i < CPUIDLE_STATE_MAX; i++) { | ||
66 | dev->states[i].name[0] = '\0'; | ||
67 | dev->states[i].desc[0] = '\0'; | ||
68 | dev->states[i].enter = shmobile_cpuidle_enter; | ||
69 | } | ||
70 | |||
71 | i = CPUIDLE_DRIVER_STATE_START; | ||
72 | |||
73 | state = &dev->states[i++]; | ||
74 | snprintf(state->name, CPUIDLE_NAME_LEN, "C1"); | ||
75 | strncpy(state->desc, "WFI", CPUIDLE_DESC_LEN); | ||
76 | state->exit_latency = 1; | ||
77 | state->target_residency = 1 * 2; | ||
78 | state->power_usage = 3; | ||
79 | state->flags = 0; | ||
80 | state->flags |= CPUIDLE_FLAG_TIME_VALID; | ||
81 | |||
82 | dev->safe_state = state; | ||
83 | dev->state_count = i; | ||
84 | 75 | ||
85 | if (shmobile_cpuidle_setup) | 76 | if (shmobile_cpuidle_setup) |
86 | shmobile_cpuidle_setup(dev); | 77 | shmobile_cpuidle_setup(drv); |
78 | |||
79 | cpuidle_register_driver(drv); | ||
87 | 80 | ||
81 | dev->state_count = drv->state_count; | ||
88 | cpuidle_register_device(dev); | 82 | cpuidle_register_device(dev); |
89 | 83 | ||
90 | return 0; | 84 | return 0; |