diff --git a/dts/Bindings/display/imx/ldb.txt b/dts/Bindings/display/imx/ldb.txt
index 0a175d9..a407462 100644
--- a/dts/Bindings/display/imx/ldb.txt
+++ b/dts/Bindings/display/imx/ldb.txt
@@ -62,6 +62,7 @@
    display-timings are used instead.
 
 Optional properties (required if display-timings are used):
+ - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
  - display-timings : A node that describes the display timings as defined in
    Documentation/devicetree/bindings/display/display-timing.txt.
  - fsl,data-mapping : should be "spwg" or "jeida"