diff --git a/Documentation/devicetree/bindings/spi/marvell,armada-3700-spi.yaml b/Documentation/devicetree/bindings/spi/marvell,armada-3700-spi.yaml
index 61caa1d86188..75437c46e65a 100644
--- a/Documentation/devicetree/bindings/spi/marvell,armada-3700-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/marvell,armada-3700-spi.yaml
@@ -28,9 +28,6 @@ properties:
   clocks:
     maxItems: 1
 
-  num-cs:
-    maxItems: 1
-
 required:
   - compatible
   - reg