Hi Sergei Sorry for my un-ordered response > Define the generic R8A7794 part of the sound device node. > This sound device is a complex one and comprises the Audio Clock Generator > (ADG), Sampling Rate Converter Unit (SCU), Serial Sound Interface [Unit] > (SSI[U]), and Audio DMAC-Peripheral-Peripheral. > It is up to the board file to enable the device. > > This patch is based on the R8A7791 sound work by Kuninori Morimoto. > > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> (snip) > + rcar_sound,src { > + src1: src@1 { > + interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x87>, <&audma0 0x9c>; > + dma-names = "rx", "tx"; > + }; > + src2: src@2 { > + interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x89>, <&audma0 0x9e>; > + dma-names = "rx", "tx"; > + }; > + src3: src@3 { > + interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x8b>, <&audma0 0xa0>; > + dma-names = "rx", "tx"; > + }; > + src4: src@4 { > + interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x8d>, <&audma0 0xb0>; > + dma-names = "rx", "tx"; > + }; > + src5: src@5 { > + interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x8f>, <&audma0 0xb2>; > + dma-names = "rx", "tx"; > + }; > + src6: src@6 { > + interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&audma0 0x91>, <&audma0 0xb4>; > + dma-names = "rx", "tx"; > + }; > + }; I think this can't work correctly, because driver is assuming DT has all channles (from 0). (see linux/sound/soc/sh/rcar/src.c :: rsnd_src_probe) Can you adds dummy src0 with some comments ? or fix src.c driver ?