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| author | Chanwoo Choi <cw00.choi@samsung.com> | 2017-01-31 15:38:17 +0900 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2017-01-31 15:47:32 +0900 |
| commit | 30582c25a4b4e0a5e456a309fde79b845e9473b2 (patch) | |
| tree | fa6fe105766dcb2e1e8f0fbabbb5cd9354385014 /drivers/devfreq | |
| parent | bcf23c79c4e46130701370af4383b61a3cba755c (diff) | |
| download | linux-30582c25a4b4e0a5e456a309fde79b845e9473b2.tar.gz linux-30582c25a4b4e0a5e456a309fde79b845e9473b2.tar.bz2 linux-30582c25a4b4e0a5e456a309fde79b845e9473b2.zip | |
PM / devfreq: Fix wrong trans_stat of passive devfreq device
Until now, the trans_stat information of passive devfreq is not updated.
This patch updates the trans_stat information after setting the target
frequency of passive devfreq device.
Fixes: 996133119f57 ("PM / devfreq: Add new passive governor")
Cc: stable@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 3 | ||||
| -rw-r--r-- | drivers/devfreq/governor.h | 2 | ||||
| -rw-r--r-- | drivers/devfreq/governor_passive.c | 5 |
3 files changed, 9 insertions, 1 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index ade279d29f1e..4e86cc0106df 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -130,7 +130,7 @@ static void devfreq_set_freq_table(struct devfreq *devfreq) * @devfreq: the devfreq instance * @freq: the update target frequency */ -static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) +int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) { int lev, prev_lev, ret = 0; unsigned long cur_time; @@ -166,6 +166,7 @@ out: devfreq->last_stat_updated = cur_time; return ret; } +EXPORT_SYMBOL(devfreq_update_status); /** * find_devfreq_governor() - find devfreq governor from name diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h index fad7d6321978..71576b8bdfef 100644 --- a/drivers/devfreq/governor.h +++ b/drivers/devfreq/governor.h @@ -38,4 +38,6 @@ extern void devfreq_interval_update(struct devfreq *devfreq, extern int devfreq_add_governor(struct devfreq_governor *governor); extern int devfreq_remove_governor(struct devfreq_governor *governor); +extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq); + #endif /* _GOVERNOR_H */ diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c index 93795b32dc09..5be96b2249e7 100644 --- a/drivers/devfreq/governor_passive.c +++ b/drivers/devfreq/governor_passive.c @@ -112,6 +112,11 @@ static int update_devfreq_passive(struct devfreq *devfreq, unsigned long freq) if (ret < 0) goto out; + if (devfreq->profile->freq_table + && (devfreq_update_status(devfreq, freq))) + dev_err(&devfreq->dev, + "Couldn't update frequency transition information.\n"); + devfreq->previous_freq = freq; out: |