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| author | Dirk Brandewie <dirk.brandewie@gmail.com> | 2013-02-06 18:02:09 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-02-09 12:55:47 +0100 |
| commit | f6b0515b078f641d00ca531a9f0ae34f3b05ec20 (patch) | |
| tree | e2ba8cb57e5f2510d6504f1ce047912bd3cb5064 /drivers/cpufreq | |
| parent | cpufreq: Retrieve current frequency from scaling drivers with internal governors (diff) | |
| download | linux-f6b0515b078f641d00ca531a9f0ae34f3b05ec20.tar.xz linux-f6b0515b078f641d00ca531a9f0ae34f3b05ec20.zip | |
cpufreq: Only call cpufreq_out_of_sync() for driver that implement cpufreq_driver.target()
Scaling drivers that implement cpufreq_driver.setpolicy() have
internal governors that do not signal changes via
cpufreq_notify_transition() so the frequncy in the policy will almost
certainly be different than the current frequncy. Only call
cpufreq_out_of_sync() when the underlying driver implements
cpufreq_driver.target()
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index e98035dc2265..480c49c71afe 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1770,7 +1770,7 @@ int cpufreq_update_policy(unsigned int cpu) pr_debug("Driver did not initialize current freq"); data->cur = policy.cur; } else { - if (data->cur != policy.cur) + if (data->cur != policy.cur && cpufreq_driver->target) cpufreq_out_of_sync(cpu, data->cur, policy.cur); } |