Hi Geert > > SSI is supporting both "PIO mode" and "DMA mode", thus "dmas/dma-names" > > are not mandatory property. Drop these from rcar_sound,ssi's required:. > > BTW, do SSIU and DVC support PIO mode? Only SSI has PIO mode, others need DMA Thank you for your help !! Best regards --- Kuninori Morimoto