diff options
Diffstat (limited to 'drivers/cpuidle/driver.c')
| -rw-r--r-- | drivers/cpuidle/driver.c | 33 |
1 files changed, 1 insertions, 32 deletions
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c index 3af841fb397a..422c7b69ba7c 100644 --- a/drivers/cpuidle/driver.c +++ b/drivers/cpuidle/driver.c @@ -19,34 +19,9 @@ DEFINE_SPINLOCK(cpuidle_driver_lock); static void __cpuidle_set_cpu_driver(struct cpuidle_driver *drv, int cpu); static struct cpuidle_driver * __cpuidle_get_cpu_driver(int cpu); -static void set_power_states(struct cpuidle_driver *drv) -{ - int i; - - /* - * cpuidle driver should set the drv->power_specified bit - * before registering if the driver provides - * power_usage numbers. - * - * If power_specified is not set, - * we fill in power_usage with decreasing values as the - * cpuidle code has an implicit assumption that state Cn - * uses less power than C(n-1). - * - * With CONFIG_ARCH_HAS_CPU_RELAX, C0 is already assigned - * an power value of -1. So we use -2, -3, etc, for other - * c-states. - */ - for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) - drv->states[i].power_usage = -1 - i; -} - static void __cpuidle_driver_init(struct cpuidle_driver *drv) { drv->refcnt = 0; - - if (!drv->power_specified) - set_power_states(drv); } static int __cpuidle_register_driver(struct cpuidle_driver *drv, int cpu) @@ -235,16 +210,10 @@ EXPORT_SYMBOL_GPL(cpuidle_get_driver); */ struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev) { - struct cpuidle_driver *drv; - if (!dev) return NULL; - spin_lock(&cpuidle_driver_lock); - drv = __cpuidle_get_cpu_driver(dev->cpu); - spin_unlock(&cpuidle_driver_lock); - - return drv; + return __cpuidle_get_cpu_driver(dev->cpu); } EXPORT_SYMBOL_GPL(cpuidle_get_cpu_driver); |