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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2019-07-04 13:06:17 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-04 10:40:54 +0200 |
| commit | 0b07ee944701dabcddc294d903b5e8e21c2c5d95 (patch) | |
| tree | 189fb165d7aa8cbeffadf1e63bc9eba5aa769446 /Documentation/power | |
| parent | cpufreq: Avoid calling cpufreq_verify_current_freq() from handle_update() (diff) | |
| download | linux-dev-0b07ee944701dabcddc294d903b5e8e21c2c5d95.tar.xz linux-dev-0b07ee944701dabcddc294d903b5e8e21c2c5d95.zip | |
PM / QOS: Pass request type to dev_pm_qos_{add|remove}_notifier()
In order to use the same set of routines to register notifiers for
different request types, update the existing
dev_pm_qos_{add|remove}_notifier() routines with an additional
parameter: request-type.
For now, it only supports resume-latency request type but will be
extended to frequency limit (min/max) constraints later on.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/power')
| -rw-r--r-- | Documentation/power/pm_qos_interface.txt | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt index 19c5f7b1a7ba..ec7d662d1707 100644 --- a/Documentation/power/pm_qos_interface.txt +++ b/Documentation/power/pm_qos_interface.txt @@ -164,12 +164,14 @@ directory. Notification mechanisms: The per-device PM QoS framework has a per-device notification tree. -int dev_pm_qos_add_notifier(device, notifier): -Adds a notification callback function for the device. +int dev_pm_qos_add_notifier(device, notifier, type): +Adds a notification callback function for the device for a particular request +type. + The callback is called when the aggregated value of the device constraints list -is changed (for resume latency device PM QoS only). +is changed. -int dev_pm_qos_remove_notifier(device, notifier): +int dev_pm_qos_remove_notifier(device, notifier, type): Removes the notification callback function for the device. |