xref: /freebsd/sys/contrib/device-tree/Bindings/sound/adi,axi-spdif-tx.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotADI AXI-SPDIF controller
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotRequired properties:
4*c66ec88fSEmmanuel Vadot - compatible : Must be "adi,axi-spdif-tx-1.00.a"
5*c66ec88fSEmmanuel Vadot - reg : Must contain SPDIF core's registers location and length
6*c66ec88fSEmmanuel Vadot - clocks : Pairs of phandle and specifier referencing the controller's clocks.
7*c66ec88fSEmmanuel Vadot   The controller expects two clocks, the clock used for the AXI interface and
8*c66ec88fSEmmanuel Vadot   the clock used as the sampling rate reference clock sample.
9*c66ec88fSEmmanuel Vadot - clock-names: "axi" for the clock to the AXI interface, "ref" for the sample
10*c66ec88fSEmmanuel Vadot   rate reference clock.
11*c66ec88fSEmmanuel Vadot - dmas: Pairs of phandle and specifier for the DMA channel that is used by
12*c66ec88fSEmmanuel Vadot   the core. The core expects one dma channel for transmit.
13*c66ec88fSEmmanuel Vadot - dma-names : Must be "tx"
14*c66ec88fSEmmanuel Vadot
15*c66ec88fSEmmanuel VadotFor more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
16*c66ec88fSEmmanuel Vadotplease check:
17*c66ec88fSEmmanuel Vadot	* resource-names.txt
18*c66ec88fSEmmanuel Vadot	* clock/clock-bindings.txt
19*c66ec88fSEmmanuel Vadot	* dma/dma.txt
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel VadotExample:
22*c66ec88fSEmmanuel Vadot
23*c66ec88fSEmmanuel Vadot	spdif: spdif@77400000 {
24*c66ec88fSEmmanuel Vadot		compatible = "adi,axi-spdif-tx-1.00.a";
25*c66ec88fSEmmanuel Vadot		reg = <0x77600000 0x1000>;
26*c66ec88fSEmmanuel Vadot		clocks = <&clk 15>, <&audio_clock>;
27*c66ec88fSEmmanuel Vadot		clock-names = "axi", "ref";
28*c66ec88fSEmmanuel Vadot		dmas = <&ps7_dma 0>;
29*c66ec88fSEmmanuel Vadot		dma-names = "tx";
30*c66ec88fSEmmanuel Vadot	};
31