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PM / QOS: Pass request type to dev_pm_qos_{add|remove}_notifier()

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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 <[email protected]>
Reviewed-by: Ulf Hansson <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Viresh Kumar 2019-07-04 13:06:17 +05:30 • committed by Rafael J. Wysocki
commit 0b07ee9447
4 changed files with 31 additions and 13 deletions
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12
Documentation/power/pm_qos_interface.txt
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@ -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.
The callback is called when the aggregated value of the device constraints list
is changed (for resume latency device PM QoS only).
int dev_pm_qos_add_notifier(device, notifier, type):
Adds a notification callback function for the device for a particular request
type.
int dev_pm_qos_remove_notifier(device, notifier):
The callback is called when the aggregated value of the device constraints list
is changed.
int dev_pm_qos_remove_notifier(device, notifier, type):
Removes the notification callback function for the device.