On 21/10/2022 04:10, Joy Zou wrote: >>> + >>> +required: >>> + - compatible >>> + - reg >>> + - interrupts >>> + - fsl,sdma-ram-script-name >>> + - "#dma-cells" >> >> and then this can one be dropped. > Thanks your comments. > I have tried to delete the additionalProperties, but I run dtbs_check. The log as follow: Why would you do that? No one asks that. Please read mailing list netiquette/conversation style. Best regards, Krzysztof