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authorLukasz Luba <lukasz.luba@arm.com>2016-05-31 10:25:09 (GMT)
committerMyungJoo Ham <myungjoo.ham@samsung.com>2016-06-22 04:53:00 (GMT)
commit8d39fc085d268a56486066a3deca94745f804f2d (patch)
tree3f427f2a961e91c8ada3b93a97af1b380415fa7f /drivers/devfreq
parent674789dd2c4b53ed368dc81ae22d72ac4fdb92ec (diff)
downloadlinux-8d39fc085d268a56486066a3deca94745f804f2d.tar.xz
PM / devfreq: fix initialization of current frequency in last status
Some systems need current frequency from last_status for calculation but it is zeroed during initialization. When the device starts there is no history, but we can assume that the last frequency was the same as the initial frequency (which is also used in 'previous_freq'). The log shows the result of this misinterpreted value. [ 2.042847] ... Failed to get voltage for frequency 0: -34 Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Javi Merino <javi.merino@arm.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq')
-rw-r--r--drivers/devfreq/devfreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 0ebd64d..c7f47e3 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -552,6 +552,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
devfreq->profile = profile;
strncpy(devfreq->governor_name, governor_name, DEVFREQ_NAME_LEN);
devfreq->previous_freq = profile->initial_freq;
+ devfreq->last_status.current_frequency = profile->initial_freq;
devfreq->data = data;
devfreq->nb.notifier_call = devfreq_notifier_call;