xref: /freebsd/sys/contrib/device-tree/Bindings/sound/xlnx,i2s.txt (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e)
1Device-Tree bindings for Xilinx I2S PL block
2
3The IP supports I2S based playback/capture audio
4
5Required property:
6 - compatible: "xlnx,i2s-transmitter-1.0" for playback and
7	       "xlnx,i2s-receiver-1.0" for capture
8
9Required property common to both I2S playback and capture:
10 - reg: Base address and size of the IP core instance.
11 - xlnx,dwidth: sample data width. Can be any of 16, 24.
12 - xlnx,num-channels: Number of I2S streams. Can be any of 1, 2, 3, 4.
13		      supported channels = 2 * xlnx,num-channels
14
15Example:
16
17	i2s_receiver@a0080000 {
18		compatible = "xlnx,i2s-receiver-1.0";
19		reg = <0x0 0xa0080000 0x0 0x10000>;
20		xlnx,dwidth = <0x18>;
21		xlnx,num-channels = <1>;
22	};
23	i2s_transmitter@a0090000 {
24		compatible = "xlnx,i2s-transmitter-1.0";
25		reg = <0x0 0xa0090000 0x0 0x10000>;
26		xlnx,dwidth = <0x18>;
27		xlnx,num-channels = <1>;
28	};
29