diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index ec0bfb9bbebd42c828a3b4978db070924275f609..da05060803b22a2afed05ed956ccb47275d99128 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -136,6 +136,7 @@ holt	Holt Integrated Circuits, Inc.
 honeywell	Honeywell
 hp	Hewlett Packard
 holtek	Holtek Semiconductor, Inc.
+hwacom	HwaCom Systems Inc.
 i2se	I2SE GmbH
 ibm	International Business Machines (IBM)
 idt	Integrated Device Technologies, Inc.