Something along the lines of, mcpdm: mcpdm@0 { compatible = "ti,omap4-mcpdm"; reg = <0x0 0x7f>, /* MPU private access */ <0x49032000 0x7f>; /* L3 Interconnect */ reg-names = "mpu", "dma"; interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>; dmas = <&sdma 65>, <&sdma 66>; dma-names = "up_link", "dn_link"; }; Might also need to add clocks? clocks = <&twl6040>; clock-names = "pdmclk"; But those are usually defined in board specific files. And add reg-names, dmas, dma-names information to the docs? -- Best Regards, Mithil