adi,ad5770r.yaml (5006B)
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2# Copyright 2020 Analog Devices Inc. 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/iio/dac/adi,ad5770r.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: Analog Devices AD5770R DAC device driver 9 10maintainers: 11 - Mircea Caprioru <mircea.caprioru@analog.com> 12 13description: | 14 Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be 15 found here: 16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD5770R.pdf 17 18properties: 19 compatible: 20 enum: 21 - adi,ad5770r 22 23 reg: 24 maxItems: 1 25 26 avdd-supply: 27 description: 28 AVdd voltage supply. Represents two different supplies in the datasheet 29 that are in fact the same. 30 31 iovdd-supply: 32 description: 33 Voltage supply for the chip interface. 34 35 vref-supply: 36 description: Specify the voltage of the external reference used. 37 Available reference options are 1.25 V or 2.5 V. If no 38 external reference declared then the device will use the 39 internal reference of 1.25 V. 40 41 adi,external-resistor: 42 description: Specify if an external 2.5k ohm resistor is used. If not 43 specified the device will use an internal 2.5k ohm resistor. 44 The precision resistor is used for reference current generation. 45 type: boolean 46 47 reset-gpios: 48 description: GPIO spec for the RESET pin. If specified, it will be 49 asserted during driver probe. 50 maxItems: 1 51 52 spi-max-frequency: true 53 54 '#address-cells': 55 const: 1 56 57 '#size-cells': 58 const: 0 59 60 channel@0: 61 description: Represents an external channel which are 62 connected to the DAC. Channel 0 can act both as a current 63 source and sink. 64 type: object 65 66 properties: 67 reg: 68 description: This represents the channel number. 69 const: 0 70 71 adi,range-microamp: 72 description: Output range of the channel. 73 oneOf: 74 - items: 75 - const: 0 76 - const: 300000 77 - items: 78 - const: -60000 79 - const: 0 80 - items: 81 - const: -60000 82 - const: 300000 83 84 channel@1: 85 description: Represents an external channel which are 86 connected to the DAC. 87 type: object 88 89 properties: 90 reg: 91 description: This represents the channel number. 92 const: 1 93 94 adi,range-microamp: 95 description: Output range of the channel. 96 items: 97 - const: 0 98 - enum: [140000, 250000] 99 100 channel@2: 101 description: Represents an external channel which are 102 connected to the DAC. 103 type: object 104 105 properties: 106 reg: 107 description: This represents the channel number. 108 const: 2 109 110 adi,range-microamp: 111 description: Output range of the channel. 112 items: 113 - const: 0 114 - enum: [55000, 150000] 115 116patternProperties: 117 "^channel@([3-5])$": 118 type: object 119 description: Represents the external channels which are connected to the DAC. 120 properties: 121 reg: 122 description: This represents the channel number. 123 minimum: 3 124 maximum: 5 125 126 adi,range-microamp: 127 description: Output range of the channel. 128 items: 129 - const: 0 130 - enum: [45000, 100000] 131 132required: 133 - reg 134 - channel@0 135 - channel@1 136 - channel@2 137 - channel@3 138 - channel@4 139 - channel@5 140 141additionalProperties: false 142 143examples: 144 - | 145 spi { 146 #address-cells = <1>; 147 #size-cells = <0>; 148 149 ad5770r@0 { 150 compatible = "adi,ad5770r"; 151 reg = <0>; 152 spi-max-frequency = <1000000>; 153 vref-supply = <&vref>; 154 adi,external-resistor; 155 reset-gpios = <&gpio 22 0>; 156 #address-cells = <1>; 157 #size-cells = <0>; 158 159 channel@0 { 160 reg = <0>; 161 adi,range-microamp = <0 300000>; 162 }; 163 164 channel@1 { 165 reg = <1>; 166 adi,range-microamp = <0 140000>; 167 }; 168 169 channel@2 { 170 reg = <2>; 171 adi,range-microamp = <0 55000>; 172 }; 173 174 channel@3 { 175 reg = <3>; 176 adi,range-microamp = <0 45000>; 177 }; 178 179 channel@4 { 180 reg = <4>; 181 adi,range-microamp = <0 45000>; 182 }; 183 184 channel@5 { 185 reg = <5>; 186 adi,range-microamp = <0 45000>; 187 }; 188 }; 189 }; 190...