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| author | Punit Agrawal <punit.agrawal@arm.com> | 2014-07-29 11:50:49 +0100 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2014-07-29 09:27:54 -0400 |
| commit | 39811569e43a81417bc0ddca3d0c7658c3dcd4b0 (patch) | |
| tree | 72f3375f4000c27ba0f15d0a88c64d5536c32a8d /drivers/thermal | |
| parent | 100a8fdbf525bb11796692a713c267be6523a890 (diff) | |
| download | linux-39811569e43a81417bc0ddca3d0c7658c3dcd4b0.tar.gz linux-39811569e43a81417bc0ddca3d0c7658c3dcd4b0.tar.bz2 linux-39811569e43a81417bc0ddca3d0c7658c3dcd4b0.zip | |
thermal: trace: Trace when a cooling device's state is updated
Introduce and use an event to trace when a cooling device's state is
updated. This is useful to follow the effect of governor decisions on
cooling devices.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 6b32391260a0..c74c78d28699 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1291,6 +1291,7 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) mutex_unlock(&cdev->lock); cdev->ops->set_cur_state(cdev, target); cdev->updated = true; + trace_cdev_update(cdev, target); dev_dbg(&cdev->device, "set to state %lu\n", target); } EXPORT_SYMBOL(thermal_cdev_update); |