1 Analog Devices AD7606 Simultaneous Sampling ADC
3 Required properties for the AD7606:
5 - compatible: Must be one of
10 - reg: SPI chip select number for the device
11 - spi-max-frequency: Max SPI frequency to use
12 see: Documentation/devicetree/bindings/spi/spi-bus.txt
13 - spi-cpha: See Documentation/devicetree/bindings/spi/spi-bus.txt
14 - avcc-supply: phandle to the Avcc power supply
15 - interrupts: IRQ line for the ADC
16 see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
17 - adi,conversion-start-gpios: must be the device tree identifier of the CONVST pin.
18 This logic input is used to initiate conversions on the analog
19 input channels. As the line is active high, it should be marked
24 - reset-gpios: must be the device tree identifier of the RESET pin. If specified,
25 it will be asserted during driver probe. As the line is active high,
26 it should be marked GPIO_ACTIVE_HIGH.
27 - standby-gpios: must be the device tree identifier of the STBY pin. This pin is used
28 to place the AD7606 into one of two power-down modes, Standby mode or
29 Shutdown mode. As the line is active low, it should be marked
31 - adi,first-data-gpios: must be the device tree identifier of the FRSTDATA pin.
32 The FRSTDATA output indicates when the first channel, V1, is
33 being read back on either the parallel, byte or serial interface.
34 As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
35 - adi,range-gpios: must be the device tree identifier of the RANGE pin. The polarity on
36 this pin determines the input range of the analog input channels. If
37 this pin is tied to a logic high, the analog input range is ±10V for
38 all channels. If this pin is tied to a logic low, the analog input range
39 is ±5V for all channels. As the line is active high, it should be marked
41 - adi,oversampling-ratio-gpios: must be the device tree identifier of the over-sampling
42 mode pins. As the line is active high, it should be marked
48 compatible = "adi,ad7606-8";
50 spi-max-frequency = <1000000>;
53 avcc-supply = <&adc_vref>;
55 interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
56 interrupt-parent = <&gpio>;
58 adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
59 reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
60 adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
61 adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
62 &gpio 23 GPIO_ACTIVE_HIGH
63 &gpio 26 GPIO_ACTIVE_HIGH>;
64 standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;