xref: /freebsd/sys/contrib/device-tree/Bindings/sound/ti,pcm3168a.txt (revision ec0ea6efa1ad229d75c394c1a9b9cac33af2b1d3)
1Texas Instruments pcm3168a DT bindings
2
3This driver supports both SPI and I2C bus access for this codec
4
5Required properties:
6
7  - compatible: "ti,pcm3168a"
8
9  - clocks : Contains an entry for each entry in clock-names
10
11  - clock-names : Includes the following entries:
12	"scki"	The system clock
13
14  - VDD1-supply : Digital power supply regulator 1 (+3.3V)
15
16  - VDD2-supply : Digital power supply regulator 2 (+3.3V)
17
18  - VCCAD1-supply : ADC power supply regulator 1 (+5V)
19
20  - VCCAD2-supply : ADC power supply regulator 2 (+5V)
21
22  - VCCDA1-supply : DAC power supply regulator 1 (+5V)
23
24  - VCCDA2-supply : DAC power supply regulator 2 (+5V)
25
26For required properties on SPI/I2C, consult SPI/I2C device tree documentation
27
28Optional properties:
29
30  - reset-gpios : Optional reset gpio line connected to RST pin of the codec.
31		  The RST line is low active:
32		  RST = low: device power-down
33		  RST = high: device is enabled
34
35Examples:
36
37i2c0: i2c0@0 {
38
39	...
40
41	pcm3168a: audio-codec@44 {
42		compatible = "ti,pcm3168a";
43		reg = <0x44>;
44		reset-gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
45		clocks = <&clk_core CLK_AUDIO>;
46		clock-names = "scki";
47		VDD1-supply = <&supply3v3>;
48		VDD2-supply = <&supply3v3>;
49		VCCAD1-supply = <&supply5v0>;
50		VCCAD2-supply = <&supply5v0>;
51		VCCDA1-supply = <&supply5v0>;
52		VCCDA2-supply = <&supply5v0>;
53		pinctrl-names = "default";
54		pinctrl-0 = <&dac_clk_pin>;
55	};
56};
57