[PATCH 4/4] dt-bindings: mfd: syscon: require specific compatible also for simple-mfd

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

The syscon bindings require a device specific compatible, beside the
"syscon".  However schema counts "simple-mfd" as such, which allows
simple-mfd+syscon to sneak in.

Adjust the match to be sure simple-mfd also comes with a device specific
compatible.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/mfd/syscon.yaml | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
index c958086a5fc3..a64c7a71e6fe 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.yaml
+++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
@@ -72,7 +72,7 @@ properties:
       - contains:
           const: syscon
         minItems: 2
-        maxItems: 4  # Should be enough
+        maxItems: 5  # Should be enough
 
   reg:
     maxItems: 1
@@ -93,6 +93,18 @@ required:
   - compatible
   - reg
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: simple-mfd
+    then:
+      properties:
+        compatible:
+          minItems: 3
+          maxItems: 5
+
 additionalProperties: true
 
 examples:
-- 
2.34.1