mmc-controller.yaml is common schema file. According to writing-schema.rst, * additionalProperties: true Rare case, used for schemas implementing common set of properties. Such schemas are supposed to be referenced by other schemas, which then use 'unevaluatedProperties: false'. Typically bus or common-part schemas. Reproduce steps: 1. Add unevaluated property 'abc' at example of fsl-imx-esdhc.yaml 2. Run make dt_binding_check DT_SCHEMA_FILES=fsl-imx-esdhc.yaml No any warning report. But suppose report below warning: mmc@70004000: Unevaluated properties are not allowed ('abc' was unexpected) Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- Documentation/devicetree/bindings/mmc/mmc-controller.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml index 9d7a1298c4554..26e4f0f8dc1ce 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml @@ -24,7 +24,7 @@ properties: $nodename: pattern: "^mmc(@.*)?$" -unevaluatedProperties: true +additionalProperties: true examples: - | -- 2.34.1