* Rockchip SPDIF transceiver The S/PDIF audio block is a stereo transceiver that allows the processor to receive and transmit digital audio via an coaxial cable or a fibre cable. Required properties: - compatible: should be one of the following: - "rockchip,rk3066-spdif" - "rockchip,rk3188-spdif" - "rockchip,rk3288-spdif" - "rockchip,rk3366-spdif" - "rockchip,rk3368-spdif" - "rockchip,rk3399-spdif" - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the SPDIF interrupt. - dmas: DMA specifiers for tx dma. See the DMA client binding, Documentation/devicetree/bindings/dma/dma.txt - dma-names: should be "tx" - clocks: a list of phandle + clock-specifier pairs, one for each entry in clock-names. - clock-names: should contain following: - "hclk": clock for SPDIF controller - "mclk" : clock for SPDIF bus Required properties on RK3288: - rockchip,grf: the phandle of the syscon node for the general register file (GRF) Example for the rk3188 SPDIF controller: spdif: spdif@0x1011e000 { compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif"; reg = <0x1011e000 0x2000>; interrupts = ; dmas = <&dmac1_s 8>; dma-names = "tx"; clock-names = "hclk", "mclk"; clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>; status = "disabled"; #sound-dai-cells = <0>; };