1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2# Copyright 2022 Analog Devices Inc. 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/iio/adc/adi,max11410.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: Analog Devices MAX11410 ADC device driver 9 10maintainers: 11 - Ibrahim Tilki <Ibrahim.Tilki@analog.com> 12 13description: | 14 Bindings for the Analog Devices MAX11410 ADC device. Datasheet can be 15 found here: 16 https://datasheets.maximintegrated.com/en/ds/MAX11410.pdf 17 18properties: 19 compatible: 20 enum: 21 - adi,max11410 22 23 reg: 24 maxItems: 1 25 26 interrupts: 27 minItems: 1 28 maxItems: 2 29 30 interrupt-names: 31 description: Name of the gpio pin of max11410 used for IRQ 32 minItems: 1 33 items: 34 - enum: [gpio0, gpio1] 35 - const: gpio1 36 37 '#address-cells': 38 const: 1 39 40 '#size-cells': 41 const: 0 42 43 avdd-supply: 44 description: Optional avdd supply. Used as reference when no explicit reference supplied. 45 46 vref0p-supply: 47 description: vref0p supply can be used as reference for conversion. 48 49 vref1p-supply: 50 description: vref1p supply can be used as reference for conversion. 51 52 vref2p-supply: 53 description: vref2p supply can be used as reference for conversion. 54 55 vref0n-supply: 56 description: vref0n supply can be used as reference for conversion. 57 58 vref1n-supply: 59 description: vref1n supply can be used as reference for conversion. 60 61 vref2n-supply: 62 description: vref2n supply can be used as reference for conversion. 63 64 spi-max-frequency: 65 maximum: 8000000 66 67patternProperties: 68 "^channel(@[0-9])?$": 69 $ref: adc.yaml 70 type: object 71 description: Represents the external channels which are connected to the ADC. 72 73 properties: 74 reg: 75 description: The channel number in single-ended mode. 76 minimum: 0 77 maximum: 9 78 79 adi,reference: 80 description: | 81 Select the reference source to use when converting on 82 the specific channel. Valid values are: 83 0: VREF0P/VREF0N 84 1: VREF1P/VREF1N 85 2: VREF2P/VREF2N 86 3: AVDD/AGND 87 4: VREF0P/AGND 88 5: VREF1P/AGND 89 6: VREF2P/AGND 90 If this field is left empty, AVDD/AGND is selected. 91 $ref: /schemas/types.yaml#/definitions/uint32 92 enum: [0, 1, 2, 3, 4, 5, 6] 93 default: 3 94 95 adi,input-mode: 96 description: | 97 Select signal path of input channels. Valid values are: 98 0: Buffered, low-power, unity-gain path (default) 99 1: Bypass path 100 2: PGA path 101 $ref: /schemas/types.yaml#/definitions/uint32 102 enum: [0, 1, 2] 103 default: 0 104 105 diff-channels: true 106 107 bipolar: true 108 109 settling-time-us: true 110 111 adi,buffered-vrefp: 112 description: Enable buffered mode for positive reference. 113 type: boolean 114 115 adi,buffered-vrefn: 116 description: Enable buffered mode for negative reference. 117 type: boolean 118 119 required: 120 - reg 121 122 additionalProperties: false 123 124required: 125 - compatible 126 - reg 127 128allOf: 129 - $ref: /schemas/spi/spi-peripheral-props.yaml# 130 131unevaluatedProperties: false 132 133examples: 134 - | 135 #include <dt-bindings/interrupt-controller/irq.h> 136 spi { 137 #address-cells = <1>; 138 #size-cells = <0>; 139 140 adc@0 { 141 reg = <0>; 142 compatible = "adi,max11410"; 143 spi-max-frequency = <8000000>; 144 145 interrupt-parent = <&gpio>; 146 interrupts = <25 IRQ_TYPE_EDGE_FALLING>; 147 interrupt-names = "gpio1"; 148 149 avdd-supply = <&adc_avdd>; 150 151 vref1p-supply = <&adc_vref1p>; 152 vref1n-supply = <&adc_vref1n>; 153 154 #address-cells = <1>; 155 #size-cells = <0>; 156 157 channel@0 { 158 reg = <0>; 159 }; 160 161 channel@1 { 162 reg = <1>; 163 diff-channels = <2 3>; 164 adi,reference = <1>; 165 bipolar; 166 settling-time-us = <100000>; 167 }; 168 169 channel@2 { 170 reg = <2>; 171 diff-channels = <7 9>; 172 adi,reference = <5>; 173 adi,input-mode = <2>; 174 settling-time-us = <50000>; 175 }; 176 }; 177 }; 178