diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 3 | ||||
| -rw-r--r-- | drivers/base/power/runtime.c | 11 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index a690fd400260..0992e67e862b 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -32,6 +32,7 @@ #include <trace/events/power.h> #include <linux/cpufreq.h> #include <linux/cpuidle.h> +#include <linux/devfreq.h> #include <linux/timer.h> #include "../base.h" @@ -1078,6 +1079,7 @@ void dpm_resume(pm_message_t state) dpm_show_time(starttime, state, 0, NULL); cpufreq_resume(); + devfreq_resume(); trace_suspend_resume(TPS("dpm_resume"), state.event, false); } @@ -1852,6 +1854,7 @@ int dpm_suspend(pm_message_t state) trace_suspend_resume(TPS("dpm_suspend"), state.event, true); might_sleep(); + devfreq_suspend(); cpufreq_suspend(); mutex_lock(&dpm_list_mtx); diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 70624695b6d5..457be03b744d 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -121,7 +121,7 @@ static void pm_runtime_cancel_pending(struct device *dev) * Compute the autosuspend-delay expiration time based on the device's * power.last_busy time. If the delay has already expired or is disabled * (negative) or the power.use_autosuspend flag isn't set, return 0. - * Otherwise return the expiration time in jiffies (adjusted to be nonzero). + * Otherwise return the expiration time in nanoseconds (adjusted to be nonzero). * * This function may be called either with or without dev->power.lock held. * Either way it can be racy, since power.last_busy may be updated at any time. @@ -141,7 +141,7 @@ u64 pm_runtime_autosuspend_expiration(struct device *dev) last_busy = READ_ONCE(dev->power.last_busy); - expires = last_busy + autosuspend_delay * NSEC_PER_MSEC; + expires = last_busy + (u64)autosuspend_delay * NSEC_PER_MSEC; if (expires <= now) expires = 0; /* Already expired. */ @@ -525,7 +525,7 @@ static int rpm_suspend(struct device *dev, int rpmflags) * We add a slack of 25% to gather wakeups * without sacrificing the granularity. */ - u64 slack = READ_ONCE(dev->power.autosuspend_delay) * + u64 slack = (u64)READ_ONCE(dev->power.autosuspend_delay) * (NSEC_PER_MSEC >> 2); dev->power.timer_expires = expires; @@ -905,7 +905,10 @@ static enum hrtimer_restart pm_suspend_timer_fn(struct hrtimer *timer) spin_lock_irqsave(&dev->power.lock, flags); expires = dev->power.timer_expires; - /* If 'expire' is after 'jiffies' we've been called too early. */ + /* + * If 'expires' is after the current time, we've been called + * too early. + */ if (expires > 0 && expires < ktime_to_ns(ktime_get())) { dev->power.timer_expires = 0; rpm_suspend(dev, dev->power.timer_autosuspends ? |