All nodes need an explicit additionalProperties or unevaluatedProperties
unless a $ref has one that's false.  Add missing additionalProperties
for serial-attached devices.

Signed-off-by: Krzysztof Kozlowski <redacted>

---

This patch should probably go via Rob's Devicetree tree.
The context of the next patch depends on this one.
---
 Documentation/devicetree/bindings/serial/serial.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index ffc9198ae214..40e05dd37826 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml

@@ -92,6 +92,7 @@ patternProperties:
     if:
       type: object
     then:
+      additionalProperties: true
       description:
         Serial attached devices shall be a child node of the host UART device
         the slave device is attached to. It is expected that the attached

-- 
2.43.0