diff options
| author | Vincent Guittot <vincent.guittot@stericsson.com> | 2011-04-11 14:36:31 +0200 |
|---|---|---|
| committer | Jonas ABERG <jonas.aberg@stericsson.com> | 2011-05-05 08:08:43 +0200 |
| commit | 1b708d407a4cfc5a053bbdf19dead0ed02a3632e (patch) | |
| tree | 9f4999296908012e4da71342c8922f34d65e3c8f /drivers | |
| parent | 72e05deb8809d3651c193ed74914a4045cd28948 (diff) | |
cpufreq: add interface for updating frequency limits
ST-Ericsson ID: 337167
Change-Id: I4f66b7b46f1b20d955ce1b2a18b1ba9ece443a28
Signed-off-by: Vincent Guittot <vincent.guittot@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/21970
Reviewed-by: QATEST
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 938b74ea9ff..89294ce1067 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -462,6 +462,27 @@ show_one(scaling_cur_freq, cur); static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_policy *policy); +int cpufreq_update_freq(int cpu, unsigned int min, unsigned int max) +{ + int ret; + struct cpufreq_policy new_policy; + struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); + + ret = cpufreq_get_policy(&new_policy, cpu); + if (ret) + return -EINVAL; + + new_policy.min = min; + new_policy.max = max; + + ret = __cpufreq_set_policy(policy, &new_policy); + policy->user_policy.min = policy->min; + policy->user_policy.max = policy->max; + + return 0; +} +EXPORT_SYMBOL(cpufreq_update_freq); + /** * cpufreq_per_cpu_attr_write() / store_##file_name() - sysfs write access */ |