Hi Mark These are v3 of R-Car Gen4 support for Renesas sound driver. I have posted these patches as [RFC], because the schemas doesn't work correctly for me under certain conditions. "required: dmas/dma-names" always hits to "if-then" and never hits to "else" for some reasons. I'm still not sure why... But to be very strict, actually, this schemas is not mandatory, because SSI has PIO transfer mode which doesn't need to have DMA settings. This patch-set drops "dmas/dma-names" from SSI for now, and ignore the issue, but it is *not* a wrong schemas. v2 -> v2 - keep clock-name description on top - tidyup git-log v1 -> v2 - tidyup Subject - separate patches (drop "dmas/dma-names", add Gen4 support) - minItems -> maxItems - more git-logs. Link: https://lore.kernel.org/all/87zg9vk0ex.wl-kuninori.morimoto.gx@xxxxxxxxxxx/#r Link: https://lore.kernel.org/all/87r0v2uvm7.wl-kuninori.morimoto.gx@xxxxxxxxxxx/#r Link: https://lore.kernel.org/all/87r0v1t02h.wl-kuninori.morimoto.gx@xxxxxxxxxxx/#r Link: https://lore.kernel.org/all/87y1p7bpma.wl-kuninori.morimoto.gx@xxxxxxxxxxx/#r -- 2.25.1