On 08/06/2023 04:55, Binbin Zhou wrote: > Add Loongson LS2X APB DMA controller binding with DT schema > format using json-schema. > > Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx> > Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > +properties: > + compatible: > + oneOf: > + - const: loongson,ls2k1000-apbdma > + - items: > + - const: loongson,ls2k0500-apbdma > + - const: loongson,ls2k1000-apbdma > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + "#dma-cells": > + const: 1 > + > + dma-channels: > + const: 1 If it is const, why do you need it? Best regards, Krzysztof