On 21/07/2022 15:46, hui.liu wrote: >>> + >>> + bias-disable: true >>> + >>> + output-high: true >>> + >>> + output-low: true >>> + >>> + input-enable: true >>> + >>> + input-disable: true >>> + >>> + input-schmitt-enable: true >>> + >>> + input-schmitt-disable: true >>> + >>> + required: >>> + - pinmux >>> + >>> +allOf: >>> + - $ref: "pinctrl.yaml#" >> >> No need for quotes, especially that you use different here " than in >> other places '. You quoted my entire email, where is the question? Best regards, Krzysztof