diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
index d984b59daa4ad12f08403d2e7587b785d22878d4..fa6556363ccacb46236ddf6ec2d83946904d7e79 100644
--- a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
@@ -26,6 +26,10 @@ properties:
   spi-cpha: true
   spi-cpol: true
 
+  dc-gpios:
+    maxItems: 1
+    description: DCX pin, Display data/command selection pin in parallel interface
+
 required:
   - compatible
   - reg