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authorViresh Kumar <viresh.kumar@linaro.org>2019-07-04 13:06:17 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-07-04 10:40:54 +0200
commit0b07ee944701dabcddc294d903b5e8e21c2c5d95 (patch)
tree189fb165d7aa8cbeffadf1e63bc9eba5aa769446 /Documentation/power
parent70a59fde6e69d1d8579f84bf4555bfffb3ce452d (diff)
downloadlinux-0b07ee944701dabcddc294d903b5e8e21c2c5d95.tar.bz2
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.txt10
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.