diff options
Diffstat (limited to 'arch/sh/kernel/cpu/shmobile/cpuidle.c')
| -rw-r--r-- | arch/sh/kernel/cpu/shmobile/cpuidle.c | 113 |
1 files changed, 48 insertions, 65 deletions
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c index c19e2a940e3..e3abfd4277e 100644 --- a/arch/sh/kernel/cpu/shmobile/cpuidle.c +++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c @@ -14,9 +14,9 @@ #include <linux/io.h> #include <linux/suspend.h> #include <linux/cpuidle.h> +#include <linux/export.h> #include <asm/suspend.h> #include <asm/uaccess.h> -#include <asm/hwblk.h> static unsigned long cpuidle_mode[] = { SUSP_SH_SLEEP, /* regular sleep mode */ @@ -25,11 +25,11 @@ static unsigned long cpuidle_mode[] = { }; static int cpuidle_sleep_enter(struct cpuidle_device *dev, - struct cpuidle_state *state) + struct cpuidle_driver *drv, + int index) { - unsigned long allowed_mode = arch_hwblk_sleep_mode(); - ktime_t before, after; - int requested_state = state - &dev->states[0]; + unsigned long allowed_mode = SUSP_SH_SLEEP; + int requested_state = index; int allowed_state; int k; @@ -46,73 +46,56 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev, */ k = min_t(int, allowed_state, requested_state); - dev->last_state = &dev->states[k]; - before = ktime_get(); sh_mobile_call_standby(cpuidle_mode[k]); - after = ktime_get(); - return ktime_to_ns(ktime_sub(after, before)) >> 10; + + return k; } -static struct cpuidle_device cpuidle_dev; static struct cpuidle_driver cpuidle_driver = { - .name = "sh_idle", - .owner = THIS_MODULE, + .name = "sh_idle", + .owner = THIS_MODULE, + .states = { + { + .exit_latency = 1, + .target_residency = 1 * 2, + .power_usage = 3, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C1", + .desc = "SuperH Sleep Mode", + }, + { + .exit_latency = 100, + .target_residency = 1 * 2, + .power_usage = 1, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C2", + .desc = "SuperH Sleep Mode [SF]", + .disabled = true, + }, + { + .exit_latency = 2300, + .target_residency = 1 * 2, + .power_usage = 1, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C3", + .desc = "SuperH Mobile Standby Mode [SF]", + .disabled = true, + }, + }, + .safe_state_index = 0, + .state_count = 3, }; -void sh_mobile_setup_cpuidle(void) +int __init sh_mobile_setup_cpuidle(void) { - struct cpuidle_device *dev = &cpuidle_dev; - struct cpuidle_state *state; - int i; - - cpuidle_register_driver(&cpuidle_driver); - - for (i = 0; i < CPUIDLE_STATE_MAX; i++) { - dev->states[i].name[0] = '\0'; - dev->states[i].desc[0] = '\0'; - } - - i = CPUIDLE_DRIVER_STATE_START; - - state = &dev->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C0"); - strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN); - state->exit_latency = 1; - state->target_residency = 1 * 2; - state->power_usage = 3; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - - dev->safe_state = state; - - if (sh_mobile_sleep_supported & SUSP_SH_SF) { - state = &dev->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C1"); - strncpy(state->desc, "SuperH Sleep Mode [SF]", - CPUIDLE_DESC_LEN); - state->exit_latency = 100; - state->target_residency = 1 * 2; - state->power_usage = 1; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - } - - if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) { - state = &dev->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C2"); - strncpy(state->desc, "SuperH Mobile Standby Mode [SF]", - CPUIDLE_DESC_LEN); - state->exit_latency = 2300; - state->target_residency = 1 * 2; - state->power_usage = 1; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - } + if (sh_mobile_sleep_supported & SUSP_SH_SF) + cpuidle_driver.states[1].disabled = false; - dev->state_count = i; + if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) + cpuidle_driver.states[2].disabled = false; - cpuidle_register_device(dev); + return cpuidle_register(&cpuidle_driver, NULL); } |
