[PATCH 3/5] dt-bindings: soc: add the required property 'additionalProperties'

[Zhen Lei <thunder.leizhen@xxxxxxxxxx>]

When I do dt_binding_check for any YAML file, below wanring is always
reported:

xxx/soc/litex/litex,soc-controller.yaml: 'additionalProperties' is a required property
xxx/soc/litex/litex,soc-controller.yaml: ignoring, error in schema:
warning: no schema found in file: xxx/soc/litex/litex,soc-controller.yaml

Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml b/Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml
index e2b788796e791ab..c8b57c7fd08c23d 100644
--- a/Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml
@@ -28,6 +28,8 @@ required:
   - compatible
   - reg
 
+additionalProperties: false
+
 examples:
   - |
     soc_ctrl0: soc-controller@f0000000 {
-- 
1.8.3