From: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
Scaling drivers that implement the cpufreq_driver.setpolicy() versus
the cpufreq_driver.target() interface do not set policy->cur.
Normally policy->cur is set during the call to cpufreq_driver.target()
when the frequnecy request is made by the governor.
If the scaling driver implements cpufreq_driver.setpolicy() and
cpufreq_driver.get() interfaces use cpufreq_driver.get() to retrieve
the current frequency.
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ccc598a..bb45f93 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1177,9 +1177,14 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
*/
unsigned int cpufreq_quick_get(unsigned int cpu)
{
- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
+ struct cpufreq_policy *policy;
unsigned int ret_freq = 0;
+ if (cpufreq_driver && cpufreq_driver->setpolicy &&
+ cpufreq_driver->get)
+ return cpufreq_driver->get(cpu);
+
+ policy = cpufreq_cpu_get(cpu);
if (policy) {
ret_freq = policy->cur;
cpufreq_cpu_put(policy);
--
1.7.7.6
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