diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 62f37bc3866..1750740b17e 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -478,6 +478,7 @@ pm_runtime_autosuspend_expiration()
 If pm_runtime_irq_safe() has been called for a device then the following helper
 functions may also be used in interrupt context:
 
+pm_runtime_idle()
 pm_runtime_suspend()
 pm_runtime_autosuspend()
 pm_runtime_resume()