diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 640e86dc0ae7e3794d3a860f77b22fa608128dee..516584603b4d6f277342660411641b3f065e7663 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -12,6 +12,7 @@ amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 apm	Applied Micro Circuits Corporation (APM)
 arm	ARM Ltd.
 atmel	Atmel Corporation
+auo	AU Optronics Corporation
 avago	Avago Technologies
 bosch	Bosch Sensortec GmbH
 brcm	Broadcom Corporation