| Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller |
| |
| The Allwinner S/PDIF audio block is a transceiver that allows the |
| processor to receive and transmit digital audio via an coaxial cable or |
| a fibre cable. |
| For now only playback is supported. |
| |
| Required properties: |
| |
| - compatible : should be one of the following: |
| - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC |
| - "allwinner,sun6i-a31-spdif": for the Allwinner A31 SoC |
| - "allwinner,sun8i-h3-spdif": for the Allwinner H3 SoC |
| |
| - reg : Offset and length of the register set for the device. |
| |
| - interrupts : Contains the spdif interrupt. |
| |
| - dmas : Generic dma devicetree binding as described in |
| Documentation/devicetree/bindings/dma/dma.txt. |
| |
| - dma-names : Two dmas have to be defined, "tx" and "rx". |
| |
| - clocks : Contains an entry for each entry in clock-names. |
| |
| - clock-names : Includes the following entries: |
| "apb" clock for the spdif bus. |
| "spdif" clock for spdif controller. |
| |
| - resets : reset specifier for the ahb reset (A31 and newer only) |
| |
| Example: |
| |
| spdif: spdif@01c21000 { |
| compatible = "allwinner,sun4i-a10-spdif"; |
| reg = <0x01c21000 0x40>; |
| interrupts = <13>; |
| clocks = <&apb0_gates 1>, <&spdif_clk>; |
| clock-names = "apb", "spdif"; |
| dmas = <&dma 0 2>, <&dma 0 2>; |
| dma-names = "rx", "tx"; |
| }; |
