[PATCH 2/5] dt-bindings: serial: add the required property 'additionalProperties'

[Zhen Lei]

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

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

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

diff --git a/Documentation/devicetree/bindings/serial/litex,liteuart.yaml b/Documentation/devicetree/bindings/serial/litex,liteuart.yaml
index bc79b3cca542437..c4f1f489dc2d091 100644
--- a/Documentation/devicetree/bindings/serial/litex,liteuart.yaml
+++ b/Documentation/devicetree/bindings/serial/litex,liteuart.yaml
@@ -29,6 +29,8 @@ required:
   - compatible
   - reg
 
+additionalProperties: false
+
 examples:
   - |
     uart0: serial@e0001800 {
-- 
1.8.3