From: Biju Das <biju.das.jz@bp.renesas.com>

Add a conditional schema rule to the syscon bindings that requires the
ranges property when the compatible string contains
renesas,r9a08g046-lvds-cmn. This ensures the LVDS common control block
on the RZ/G3L SoC correctly declares its address translation, as the
device has child nodes that need a valid ranges mapping to be described
in the device tree.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 Documentation/devicetree/bindings/mfd/syscon.yaml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
index 9c81010d5a74..cbf83a06ae25 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.yaml
+++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
@@ -269,6 +269,8 @@ properties:
   resets:
     maxItems: 1
 
+  ranges: true
+
 required:
   - compatible
   - reg
@@ -276,6 +278,18 @@ required:
 allOf:
   - $ref: syscon-common.yaml#
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a08g046-lvds-cmn
+    then:
+      properties:
+        ranges: true
+
+      required:
+        - ranges
+
 unevaluatedProperties: false
 
 examples:
-- 
2.43.0