44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
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";
|
|
status = "okay";
|
|
};
|