On 06/02/2023 11:39, Md Danish Anwar wrote: >>> + properties: >>> + '#address-cells': >>> + const: 1 >>> + '#size-cells': >>> + const: 0 >>> + >>> + patternProperties: >>> + ^port@[0-1]$: >>> + type: object >>> + description: ICSSG PRUETH external ports >>> + > > At least one ethernet port is required. Should I add the below line here for this? > > minItems: 1 You need after the patternProperties: anyOf: - required: - port@0 - required: - port@1 > > Best regards, Krzysztof