diff --git a/Documentation/driver-api/thermal/cpu-idle-cooling.rst b/Documentation/driver-api/thermal/cpu-idle-cooling.rst
index c2a7ca676853..b9d4c91a7f15 100644
--- a/Documentation/driver-api/thermal/cpu-idle-cooling.rst
+++ b/Documentation/driver-api/thermal/cpu-idle-cooling.rst
@@ -161,7 +161,7 @@ tree. So with the idle injection mechanism, we want an average power
 specific OPP and idle another amount of time. That could be put in a
 equation::
 
- P(opp)target = ((Trunning x (P(opp)running) + (Tidle x P(opp)idle)) /
+ P(opp)target = (Trunning x (P(opp)running) + (Tidle x P(opp)idle)) /
 			(Trunning + Tidle)
 
   ...