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authorViresh Kumar <viresh.kumar@linaro.org>2017-01-02 14:41:03 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-01-27 11:49:09 +0100
commitdc2c9ad52af45ebecf9743aacb1916ebb2f1e848 (patch)
tree41001b1691bdad8d1b52a63561ffa9659d5412bd /drivers/devfreq
parent3aa26a3b2ea63c4d09420e74421370655aa1cf8f (diff)
PM / OPP: Don't expose srcu_head to register notifiers
Let the OPP core provide helpers to register notifiers for any device, instead of exposing srcu_head outside of the core. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/devfreq')
-rw-r--r--drivers/devfreq/devfreq.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 47206a21bb90..a545c0fee6e1 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -1265,18 +1265,7 @@ EXPORT_SYMBOL(devfreq_recommended_opp);
*/
int devfreq_register_opp_notifier(struct device *dev, struct devfreq *devfreq)
{
- struct srcu_notifier_head *nh;
- int ret = 0;
-
- rcu_read_lock();
- nh = dev_pm_opp_get_notifier(dev);
- if (IS_ERR(nh))
- ret = PTR_ERR(nh);
- rcu_read_unlock();
- if (!ret)
- ret = srcu_notifier_chain_register(nh, &devfreq->nb);
-
- return ret;
+ return dev_pm_opp_register_notifier(dev, &devfreq->nb);
}
EXPORT_SYMBOL(devfreq_register_opp_notifier);
@@ -1292,18 +1281,7 @@ EXPORT_SYMBOL(devfreq_register_opp_notifier);
*/
int devfreq_unregister_opp_notifier(struct device *dev, struct devfreq *devfreq)
{
- struct srcu_notifier_head *nh;
- int ret = 0;
-
- rcu_read_lock();
- nh = dev_pm_opp_get_notifier(dev);
- if (IS_ERR(nh))
- ret = PTR_ERR(nh);
- rcu_read_unlock();
- if (!ret)
- ret = srcu_notifier_chain_unregister(nh, &devfreq->nb);
-
- return ret;
+ return dev_pm_opp_unregister_notifier(dev, &devfreq->nb);
}
EXPORT_SYMBOL(devfreq_unregister_opp_notifier);

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