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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-06-09 17:36:17 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-06-10 00:55:48 +0400 |
| commit | 93575b757831fd6ae26eabc3e2f4b3cb2f42b9e5 (patch) | |
| tree | d3f83e1154ac24c04bee7012c713bcb5916be8b1 /drivers/cpufreq | |
| parent | c8ae481b9a12f5cea080651ea87736104b111f8e (diff) | |
| download | linux-93575b757831fd6ae26eabc3e2f4b3cb2f42b9e5.tar.xz | |
cpufreq: Mark CPU0 driver with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
Sometimes boot loaders set CPU frequency to a value outside of frequency table
present with cpufreq core. In such cases CPU might be unstable if it has to run
on that frequency for long duration of time and so its better to set it to a
frequency which is specified in frequency table.
Sachin recently found this problem with cpufreq-cpu0 driver when he was testing
it for Exynos.
Set this flag for cpufreq-cpu0 driver.
Reported-and-tested-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-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-cpu0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 09b9129c7bd3..ee1ae303a07c 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -104,7 +104,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) } static struct cpufreq_driver cpu0_cpufreq_driver = { - .flags = CPUFREQ_STICKY, + .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK, .verify = cpufreq_generic_frequency_table_verify, .target_index = cpu0_set_target, .get = cpufreq_generic_get, |