Socionext UniPhier SoC audio driver The Socionext UniPhier audio subsystem consists of I2S and S/PDIF blocks in the same register space. Required properties: - compatible : should be one of the following: "socionext,uniphier-ld11-aio" "socionext,uniphier-ld20-aio" "socionext,uniphier-pxs2-aio" - reg : offset and length of the register set for the device. - interrupts : should contain I2S or S/PDIF interrupt. - pinctrl-names : should be "default". - pinctrl-0 : defined I2S signal pins for an external codec chip. - clock-names : should include following entries: "aio" - clocks : a list of phandle, should contain an entry for each entry in clock-names. - reset-names : should include following entries: "aio" - resets : a list of phandle, should contain an entry for each entry in reset-names. - #sound-dai-cells: should be 1. Optional properties: - socionext,syscon: a phandle, should contain soc-glue. The soc-glue is used for changing mode of S/PDIF signal pin to Output from Hi-Z. This property is optional if you use I2S signal pins only. Example: audio { compatible = "socionext,uniphier-ld20-aio"; reg = <0x56000000 0x80000>; interrupts = <0 144 4>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_aout>; clock-names = "aio"; clocks = <&sys_clk 40>; reset-names = "aio"; resets = <&sys_rst 40>; #sound-dai-cells = <1>; socionext,syscon = <&sg>; };