diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
index 5770f63dd511..e1f6d64bdccd 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
@@ -53,7 +53,8 @@ patternProperties:
         description: |
           The channel number. It can have up to 8 channels numbered from 0 to 7.
         items:
-          maximum: 7
+          - minimum: 0
+            maximum: 7
 
       diff-channels:
         description: see Documentation/devicetree/bindings/iio/adc/adc.txt