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| author | Saravana Kannan <saravanak@google.com> | 2021-02-04 16:14:23 +0800 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2021-02-04 16:36:28 +0530 |
| commit | 26f9c7cc42a6dc036edf871544fd0e6b3a0601c1 (patch) | |
| tree | 57c971b834230ed04a3d15e41d2aee94412d50b7 /drivers/devfreq/devfreq.c | |
| parent | 7d8658ef65a4f891d0cff6340fa717b378384642 (diff) | |
| download | linux-26f9c7cc42a6dc036edf871544fd0e6b3a0601c1.tar.gz linux-26f9c7cc42a6dc036edf871544fd0e6b3a0601c1.tar.xz | |
PM / devfreq: Cache OPP table reference in devfreq
The OPP table can be used often in devfreq. Trying to get it each time can
be expensive, so cache it in the devfreq struct.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
[ Viresh: Added a blank line ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/devfreq/devfreq.c')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 6aa10de792b3..cefe84a10824 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -757,6 +757,9 @@ static void devfreq_dev_release(struct device *dev) if (devfreq->profile->exit) devfreq->profile->exit(devfreq->dev.parent); + if (devfreq->opp_table) + dev_pm_opp_put_opp_table(devfreq->opp_table); + mutex_destroy(&devfreq->lock); kfree(devfreq); } @@ -844,6 +847,10 @@ struct devfreq *devfreq_add_device(struct device *dev, } devfreq->suspend_freq = dev_pm_opp_get_suspend_opp_freq(dev); + devfreq->opp_table = dev_pm_opp_get_opp_table(dev); + if (IS_ERR(devfreq->opp_table)) + devfreq->opp_table = NULL; + atomic_set(&devfreq->suspend_count, 0); dev_set_name(&devfreq->dev, "%s", dev_name(dev)); |