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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-12-05 13:05:06 +0300 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2019-12-09 06:19:16 +0300 |
| commit | 05d7ae15cfb18f9ce55eef85bb6bcd62d31acc57 (patch) | |
| tree | 55a49a01c747e80705aaf3b4875f72c7246a17e8 /include/linux | |
| parent | 42a6b25e67df6ee6675e8d1eaf18065bd73328ba (diff) | |
| download | linux-05d7ae15cfb18f9ce55eef85bb6bcd62d31acc57.tar.xz | |
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/linux')
| -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 { |