1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Analog Devices AD7768-1 ADC device driver 8 9maintainers: 10 - Michael Hennerich <michael.hennerich@analog.com> 11 12description: | 13 Datasheet at: 14 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf 15 16properties: 17 compatible: 18 const: adi,ad7768-1 19 20 reg: 21 maxItems: 1 22 23 clocks: 24 maxItems: 1 25 26 clock-names: 27 const: mclk 28 29 interrupts: 30 maxItems: 1 31 32 vref-supply: 33 description: 34 ADC reference voltage supply 35 36 adi,sync-in-gpios: 37 description: 38 Enables synchronization of multiple devices that require simultaneous 39 sampling. A pulse is always required if the configuration is changed 40 in any way, for example if the filter decimation rate changes. 41 As the line is active low, it should be marked GPIO_ACTIVE_LOW. 42 43 reset-gpios: 44 maxItems: 1 45 46 spi-max-frequency: true 47 48 spi-cpol: true 49 50 spi-cpha: true 51 52 "#io-channel-cells": 53 const: 1 54 55required: 56 - compatible 57 - reg 58 - clocks 59 - clock-names 60 - vref-supply 61 - spi-cpol 62 - spi-cpha 63 - adi,sync-in-gpios 64 65additionalProperties: false 66 67examples: 68 - | 69 #include <dt-bindings/interrupt-controller/irq.h> 70 #include <dt-bindings/gpio/gpio.h> 71 spi { 72 #address-cells = <1>; 73 #size-cells = <0>; 74 75 adc@0 { 76 compatible = "adi,ad7768-1"; 77 reg = <0>; 78 spi-max-frequency = <2000000>; 79 spi-cpol; 80 spi-cpha; 81 vref-supply = <&adc_vref>; 82 interrupts = <25 IRQ_TYPE_EDGE_RISING>; 83 interrupt-parent = <&gpio>; 84 adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>; 85 reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>; 86 clocks = <&ad7768_mclk>; 87 clock-names = "mclk"; 88 }; 89 }; 90... 91