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62 lines
1.9 KiB
Plaintext
62 lines
1.9 KiB
Plaintext
Analog Devices ADAU1977/ADAU1978/ADAU1979
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Datasheets:
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http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1977.pdf
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http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1978.pdf
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http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1979.pdf
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This driver supports both the I2C and SPI bus.
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Required properties:
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- compatible: Should contain one of the following:
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"adi,adau1977"
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"adi,adau1978"
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"adi,adau1979"
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- AVDD-supply: analog power supply for the device, please consult
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Documentation/devicetree/bindings/regulator/regulator.txt
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Optional properties:
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- reset-gpios: the reset pin for the chip, for more details consult
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Documentation/devicetree/bindings/gpio/gpio.txt
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- DVDD-supply: supply voltage for the digital core, please consult
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Documentation/devicetree/bindings/regulator/regulator.txt
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- adi,micbias: configures the voltage setting for the MICBIAS pin.
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Select 0/1/2/3/4/5/6/7/8 to specify MICBIAS voltage
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5V/5.5V/6V/6.5V/7V/7.5V/8V/8.5V/9V
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If not specified the default value will be "7" meaning 8.5 Volts.
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This property is only valid for the ADAU1977
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For required properties on SPI, please consult
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Documentation/devicetree/bindings/spi/spi-bus.txt
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Required properties on I2C:
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- reg: The i2c address. Value depends on the state of ADDR0
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and ADDR1, as wired in hardware.
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Examples:
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adau1977_spi: adau1977@0 {
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compatible = "adi,adau1977";
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spi-max-frequency = <600000>;
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AVDD-supply = <®ulator>;
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DVDD-supply = <®ulator_digital>;
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adi,micbias = <3>;
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reset-gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
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};
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adau1977_i2c: adau1977@11 {
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compatible = "adi,adau1977";
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reg = <0x11>;
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AVDD-supply = <®ulator>;
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DVDD-supply = <®ulator_digital>;
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reset-gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
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};
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