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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-11 00:36:00 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-11 00:36:00 +0100 |
| commit | 71d821fdaec08afcbfb3cf258c0d64ea0e336ff3 (patch) | |
| tree | 1c743bfedc41b264fb1dbc4f1383c7e9bf001c93 /Documentation/power | |
| parent | 1a8f83515c1646e134163f0ab310362fae49fcca (diff) | |
| download | lwn-71d821fdaec08afcbfb3cf258c0d64ea0e336ff3.tar.gz lwn-71d821fdaec08afcbfb3cf258c0d64ea0e336ff3.zip | |
PM / QoS: Add type to dev_pm_qos_add_ancestor_request() arguments
Rework dev_pm_qos_add_ancestor_request() so that device PM QoS type
is passed to it as the third argument and make it support the
DEV_PM_QOS_LATENCY_TOLERANCE device PM QoS type (in addition to
DEV_PM_QOS_RESUME_LATENCY).
That will allow the drivers of devices without latency tolerance
hardware support to use their ancestors having it as proxies for
their latency tolerance requirements.
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 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt index ed743bbad87c..a5da5c7e7128 100644 --- a/Documentation/power/pm_qos_interface.txt +++ b/Documentation/power/pm_qos_interface.txt @@ -134,9 +134,11 @@ The meaning of the return values is as follows: PM_QOS_FLAGS_UNDEFINED: The device's PM QoS structure has not been initialized or the list of requests is empty. -int dev_pm_qos_add_ancestor_request(dev, handle, value) +int dev_pm_qos_add_ancestor_request(dev, handle, type, value) Add a PM QoS request for the first direct ancestor of the given device whose -power.ignore_children flag is unset. +power.ignore_children flag is unset (for DEV_PM_QOS_RESUME_LATENCY requests) +or whose power.set_latency_tolerance callback pointer is not NULL (for +DEV_PM_QOS_LATENCY_TOLERANCE requests). int dev_pm_qos_expose_latency_limit(device, value) Add a request to the device's PM QoS list of resume latency constraints and |