diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
index a6067030c5ed..6af4ff233158 100644
--- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
@@ -6,9 +6,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Allwinner A31 SPI Controller
 
-allOf:
-  - $ref: spi-controller.yaml
-
 maintainers:
   - Chen-Yu Tsai <wens@csie.org>
   - Maxime Ripard <mripard@kernel.org>
@@ -82,11 +79,11 @@ patternProperties:
 
       spi-rx-bus-width:
         items:
-          - const: 1
+          enum: [0, 1, 2, 4]
 
       spi-tx-bus-width:
         items:
-          - const: 1
+          enum: [0, 1, 2, 4]
 
 required:
   - compatible
@@ -95,6 +92,28 @@ required:
   - clocks
   - clock-names
 
+allOf:
+  - $ref: spi-controller.yaml
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - allwinner,sun50i-r329-spi
+                - allwinner,sun55i-a523-spi
+    then:
+      patternProperties:
+        "^.*@[0-9a-f]+":
+          properties:
+            spi-rx-bus-width:
+              items:
+                enum: [0, 1]
+
+            spi-tx-bus-width:
+              items:
+                enum: [0, 1]
+
 unevaluatedProperties: false
 
 examples: