1 files changed, 1 insertions, 0 deletions

diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index a87dc277a5ca..cb3d15bc1aeb 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -206,6 +206,7 @@ passive
         passive trip point for the zone. Activation is done by polling with
         an interval of 1 second.
         Unit: millidegrees Celsius
+        Valid values: 0 (disabled) or greater than 1000
         RW, Optional
 
 *****************************