Hi Dong-san Thank you for your patch > + rcar_sound: sound@ec500000 { > + /* > + * #sound-dai-cells is required > + * > + * Single DAI : #sound-dai-cells = <0>; <&rcar_sound>; > + * Multi DAI : #sound-dai-cells = <1>; <&rcar_sound N>; > + */ > + compatible = "renesas,rcar_sound-r8a77470", > + "renesas,rcar_sound-gen2"; > + reg = <0 0xec500000 0 0x1000>, /* SCU */ > + <0 0xec5a0000 0 0x100>, /* ADG */ > + <0 0xec540000 0 0x1000>, /* SSIU */ > + <0 0xec541000 0 0x280>, /* SSI */ > + <0 0xec740000 0 0x200>; /* Audio DMAC peri peri */ > + reg-names = "scu", "adg", "ssiu", "ssi", "audmapp"; I don't have r8a77470 datasheet, but does it have *extended* Audio DMAC peri peri address (= 0xec760000) ? If it has, please use it instead of normal address (= 0xec740000). > + rcar_sound,ssi { > + ssi0: ssi-0 { > + interrupts = <GIC_SPI 370 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x01>, <&audma0 0x02>, > + <&audma0 0x15>, <&audma0 0x16>; > + dma-names = "rx", "tx", "rxu", "txu"; > + }; Please add ssiu. And then, ssi doesn't need "rxu" and "txu" anymore. These can be good help for you. 0ec8e0a879b8d7eacbfbed9a7face8f97f9493a8 ("arm64: dts: renesas: r8a7795: remove BUSIF0 settings from rcar_sound,ssi") da90dd849dc22e920388d18a0f877366bd4d2b7f ("arm64: dts: renesas: r8a7795: add SSIU support for sound") BTW, this patch-set is including SoC only. Do you have plan to post board support patch after this ? In other words, did you test these ? Thank you for your help !! Best regards --- Kuninori Morimoto