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cpufreq: governor: Use microseconds in sample delay computations

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Do not convert microseconds to jiffies and the other way around
in governor computations related to the sampling rate and sample
delay and drop delay_for_sampling_rate() which isn't of any use
then.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Rafael J. Wysocki
2016-02-15 02:22:13 +01:00
parent 6e96c5b3ac
commit 07aa4402a0
4 changed files with 17 additions and 32 deletions
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4
drivers/cpufreq/cpufreq_governor.c
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@@ -282,7 +282,6 @@ static void dbs_work_handler(struct work_struct *work)
struct policy_dbs_info *policy_dbs;
struct cpufreq_policy *policy;
struct dbs_governor *gov;
unsigned int delay;
policy_dbs = container_of(work, struct policy_dbs_info, work);
policy = policy_dbs->policy;
@@ -293,8 +292,7 @@ static void dbs_work_handler(struct work_struct *work)
* ondemand governor isn't updating the sampling rate in parallel.
*/
mutex_lock(&policy_dbs->timer_mutex);
delay = gov->gov_dbs_timer(policy);
policy_dbs->sample_delay_ns = jiffies_to_nsecs(delay);
gov_update_sample_delay(policy_dbs, gov->gov_dbs_timer(policy));
mutex_unlock(&policy_dbs->timer_mutex);
/* Allow the utilization update handler to queue up more work. */