diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti,tsc2007.yaml b/Documentation/devicetree/bindings/input/touchscreen/ti,tsc2007.yaml
index a595df3ea802..d9cb53e86512 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ti,tsc2007.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti,tsc2007.yaml
@@ -53,6 +53,9 @@ properties:
       how much time to wait (in milliseconds) before reading again the
       values from the tsc2007.
 
+  "#io-channel-cells":
+    const: 1
+
 required:
   - compatible
   - reg