tjh.dev
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linux
1Analog Devices ADAU1977/ADAU1978/ADAU1979
2
3Datasheets:
4http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1977.pdf
5http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1978.pdf
6http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1979.pdf
7
8This driver supports both the I2C and SPI bus.
9
10Required properties:
11 - compatible: Should contain one of the following:
12 "adi,adau1977"
13 "adi,adau1978"
14 "adi,adau1979"
15
16 - AVDD-supply: analog power supply for the device, please consult
17 Documentation/devicetree/bindings/regulator/regulator.txt
18
19Optional properties:
20 - reset-gpio: the reset pin for the chip, for more details consult
21 Documentation/devicetree/bindings/gpio/gpio.txt
22
23 - DVDD-supply: supply voltage for the digital core, please consult
24 Documentation/devicetree/bindings/regulator/regulator.txt
25
26For required properties on SPI, please consult
27Documentation/devicetree/bindings/spi/spi-bus.txt
28
29Required properties on I2C:
30
31 - reg: The i2c address. Value depends on the state of ADDR0
32 and ADDR1, as wired in hardware.
33
34Examples:
35
36 adau1977_spi: adau1977@0 {
37 compatible = "adi,adau1977";
38 spi-max-frequency = <600000>;
39
40 AVDD-supply = <®ulator>;
41 DVDD-supply = <®ulator_digital>;
42
43 reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;
44 };
45
46 adau1977_i2c: adau1977@11 {
47 compatible = "adi,adau1977";
48 reg = <0x11>;
49
50 AVDD-supply = <®ulator>;
51 DVDD-supply = <®ulator_digital>;
52
53 reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;
54 };