On 17/03/2023 11:00, zhuyinbo wrote: >>> +properties: >>> + compatible: >>> + enum: >>> + - loongson,ls2k-spi >>> + - loongson,ls7a-spi >>> + >>> + reg: >>> + maxItems: 1 >>> + >>> + clocks: >>> + minItems: 1 >> I don't understand why did you change it. I did not ask for it. >> >> Best regards, >> Krzysztof > Add clocks "minItems: 1" description is for fix yaml file compile issue. minItems: 1 is not correct, so you cannot use incorrect code to suppress some warning. This should be list the clocks or use maxItems: 1, if you have only one clock. Best regards, Krzysztof