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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2019-07-23 11:44:01 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-08-10 14:05:48 +0200 |
| commit | 6a1490367c44f94614e39e8b98ff7114ff8a6449 (patch) | |
| tree | 05174410db32276aa84cad140437860a123276b3 /drivers/cpufreq | |
| parent | Linux 5.3-rc3 (diff) | |
| download | linux-dev-6a1490367c44f94614e39e8b98ff7114ff8a6449.tar.xz linux-dev-6a1490367c44f94614e39e8b98ff7114ff8a6449.zip | |
cpufreq: Add policy create/remove notifiers back
This effectively reverts some changes made by commit f9f41e3ef99
("cpufreq: Remove policy create/remove notifiers").
We have a new use case for policy create/remove notifiers (for
allocating/freeing QoS requests per policy), so add them back.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 8dda62367816..c13dcb59b30c 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1266,7 +1266,17 @@ static void cpufreq_policy_free(struct cpufreq_policy *policy) DEV_PM_QOS_MAX_FREQUENCY); dev_pm_qos_remove_notifier(dev, &policy->nb_min, DEV_PM_QOS_MIN_FREQUENCY); - dev_pm_qos_remove_request(policy->max_freq_req); + + if (policy->max_freq_req) { + /* + * CPUFREQ_CREATE_POLICY notification is sent only after + * successfully adding max_freq_req request. + */ + blocking_notifier_call_chain(&cpufreq_policy_notifier_list, + CPUFREQ_REMOVE_POLICY, policy); + dev_pm_qos_remove_request(policy->max_freq_req); + } + dev_pm_qos_remove_request(policy->min_freq_req); kfree(policy->min_freq_req); @@ -1391,6 +1401,9 @@ static int cpufreq_online(unsigned int cpu) ret); goto out_destroy_policy; } + + blocking_notifier_call_chain(&cpufreq_policy_notifier_list, + CPUFREQ_CREATE_POLICY, policy); } if (cpufreq_driver->get && has_target()) { |