Messages in this thread Patch in this message | | | From | dirk.brandewie@gmail ... | Subject | [PATCH 1/6] cpufreq: Retrieve current frequency from scaling drivers with internal governors | Date | Fri, 1 Feb 2013 10:45:35 -0800 |
| |
From: Dirk Brandewie <dirk.j.brandewie@intel.com>
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@intel.com> --- drivers/cpufreq/cpufreq.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1f93dbd..1c037f0 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1219,6 +1219,9 @@ unsigned int cpufreq_quick_get(unsigned int cpu) struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); unsigned int ret_freq = 0; + if (cpufreq_driver && cpufreq_driver->setpolicy && cpufreq_driver->get) + return cpufreq_driver->get(cpu); + if (policy) { ret_freq = policy->cur; cpufreq_cpu_put(policy); -- 1.7.7.6
| |