[PATCH v3 1/4] thermal: send notifications for cdev state change
From: Srikar Srimath Tirumala <hidden>
Date: 2016-03-30 00:41:34
Also in:
linux-pm
Subsystem:
the rest, thermal · Maintainers:
Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
Possibly related (same subject, not in this thread)
- 2016-03-30 · Re: [PATCH v3 1/4] thermal: send notifications for cdev state change · Matt Longnecker <hidden>
Send notifications using sysfs_notify to indicate that a cooling device cur state has changed. This can alert the listeners that hardware clocks are about to be throttled. A listening user space application can use this notification to perform workload throttling. Change-Id: I71cd6d11bff87f181fa3b7db36bf6c953d1d77eb Signed-off-by: Srikar Srimath Tirumala <redacted> --- drivers/thermal/thermal_core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index d4b5465..b09fff1 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c@@ -1642,6 +1642,7 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) cdev->updated = true; trace_cdev_update(cdev, target); dev_dbg(&cdev->device, "set to state %lu\n", target); + sysfs_notify(&cdev->device.kobj, NULL, "cur_state"); } EXPORT_SYMBOL(thermal_cdev_update);
--
2.1.4