diff options
| author |   Leonard Crestez <leonard.crestez@nxp.com> | 2019-12-05 12:05:06 +0200 |
|---|---|---|
| committer |   Chanwoo Choi <cw00.choi@samsung.com> | 2019-12-09 12:19:16 +0900 |
| commit | 05d7ae15cfb18f9ce55eef85bb6bcd62d31acc57 (patch) | |
| tree | 55a49a01c747e80705aaf3b4875f72c7246a17e8 /include | |
| parent | PM / devfreq: Don't fail devfreq_dev_release if not in list (diff) | |
| download | linux-dev-05d7ae15cfb18f9ce55eef85bb6bcd62d31acc57.tar.xz linux-dev-05d7ae15cfb18f9ce55eef85bb6bcd62d31acc57.zip | |
PM / devfreq: Add PM QoS support
Register notifiers with the PM QoS framework in order to respond to
requests for DEV_PM_QOS_MIN_FREQUENCY and DEV_PM_QOS_MAX_FREQUENCY.
No notifiers are added by this patch but PM QoS constraints can be
imposed externally (for example from other devices).
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/devfreq.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 2bae9ed3c783..8b92ccbd1962 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -136,6 +136,8 @@ struct devfreq_dev_profile { * @time_in_state: Statistics of devfreq states * @last_stat_updated: The last time stat updated * @transition_notifier_list: list head of DEVFREQ_TRANSITION_NOTIFIER notifier + * @nb_min: Notifier block for DEV_PM_QOS_MIN_FREQUENCY + * @nb_max: Notifier block for DEV_PM_QOS_MAX_FREQUENCY * * This structure stores the devfreq information for a give device. * @@ -178,6 +180,9 @@ struct devfreq { unsigned long last_stat_updated; struct srcu_notifier_head transition_notifier_list; + + struct notifier_block nb_min; + struct notifier_block nb_max; }; struct devfreq_freqs { |