cpufreq: Always update current frequency before startig governor
Make policy->cur match the current frequency returned by the driver's
->get() callback before starting the governor in case they went out of
sync in the meantime and drop the piece of code attempting to
resync policy->cur with the real frequency of the boot CPU from
cpufreq_resume() as it serves no purpose any more (and it's racy and
super-ugly anyway).
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ffdb7fc..b87596b 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1612,17 +1612,6 @@
__func__, policy);
}
}
-
- /*
- * schedule call cpufreq_update_policy() for first-online CPU, as that
- * wouldn't be hotplugged-out on suspend. It will verify that the
- * current freq is in sync with what we believe it to be.
- */
- policy = cpufreq_cpu_get_raw(cpumask_first(cpu_online_mask));
- if (WARN_ON(!policy))
- return;
-
- schedule_work(&policy->update);
}
/**
@@ -1950,6 +1939,9 @@
{
int ret;
+ if (cpufreq_driver->get && !cpufreq_driver->setpolicy)
+ cpufreq_update_current_freq(policy);
+
ret = cpufreq_governor(policy, CPUFREQ_GOV_START);
return ret ? ret : cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
}