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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/iio/dac/adi,ad5755.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Analog Devices AD5755 Multi-Channel DAC8 9maintainers:10 - Sean Nyekjaer <sean.nyekjaer@prevas.dk>11 12properties:13 compatible:14 enum:15 - adi,ad575516 - adi,ad5755-117 - adi,ad575718 - adi,ad573519 - adi,ad573720 21 reg:22 maxItems: 123 24 spi-cpha:25 description: Either this or spi-cpol but not both.26 spi-cpol: true27 28 adi,ext-dc-dc-compenstation-resistor:29 $ref: /schemas/types.yaml#/definitions/flag30 description:31 Set if the hardware have an external resistor and thereby bypasses32 the internal compensation resistor.33 34 adi,dc-dc-phase:35 $ref: /schemas/types.yaml#/definitions/uint3236 enum: [0, 1, 2, 3]37 description: |38 Valid values for DC DC Phase control is:39 0: All dc-to-dc converters clock on the same edge.40 1: Channel A and Channel B clock on the same edge,41 Channel C and Channel D clock on opposite edges.42 2: Channel A and Channel C clock on the same edge,43 Channel B and Channel D clock on opposite edges.44 3: Channel A, Channel B, Channel C, and Channel D45 clock 90 degrees out of phase from each other.46 47 adi,dc-dc-freq-hz:48 enum: [250000, 410000, 650000]49 50 adi,dc-dc-max-microvolt:51 description:52 Maximum allowed Vboost voltage supplied by the dc-to-dc converter.53 enum: [23000000, 24500000, 27000000, 29500000]54 55 "#address-cells":56 const: 157 58 "#size-cells":59 const: 060 61 "#io-channel-cells":62 const: 163 64required:65 - compatible66 - reg67 68patternProperties:69 "^channel@[0-7]$":70 type: object71 description: Child node to describe a channel72 properties:73 reg:74 maxItems: 175 76 adi,mode:77 $ref: /schemas/types.yaml#/definitions/uint3278 minimum: 079 maximum: 680 description: |81 Valid values for DAC modes is:82 0: 0 V to 5 V voltage range.83 1: 0 V to 10 V voltage range.84 2: Plus minus 5 V voltage range.85 3: Plus minus 10 V voltage range.86 4: 4 mA to 20 mA current range.87 5: 0 mA to 20 mA current range.88 6: 0 mA to 24 mA current range.89 90 adi,ext-current-sense-resistor:91 $ref: /schemas/types.yaml#/definitions/flag92 description:93 Set if the hardware has an external current sense resistor94 95 adi,enable-voltage-overrange:96 $ref: /schemas/types.yaml#/definitions/flag97 description: Enable voltage overrange98 99 adi,slew:100 $ref: /schemas/types.yaml#/definitions/uint32-array101 description: |102 Array of slewrate settings should contain 3 fields:103 1: Should be either 0 or 1 in order to enable or disable slewrate.104 2: Slew rate update frequency105 3: Slew step size106 items:107 - enum: [0, 1]108 - enum: [64000, 32000, 16000, 8000, 4000, 2000, 1000, 500, 250, 125, 64, 32, 16, 8, 4, 0]109 - enum: [1, 2, 4, 16, 32, 64, 128, 256]110 111 required:112 - reg113 114 additionalProperties: false115 116oneOf:117 - required:118 - spi-cpha119 - required:120 - spi-cpol121 122allOf:123 - $ref: /schemas/spi/spi-peripheral-props.yaml#124 125unevaluatedProperties: false126 127examples:128 - |129 spi {130 #address-cells = <1>;131 #size-cells = <0>;132 133 dac@0 {134 #address-cells = <1>;135 #size-cells = <0>;136 compatible = "adi,ad5755";137 reg = <0>;138 spi-max-frequency = <1000000>;139 spi-cpha;140 adi,dc-dc-phase = <0>;141 adi,dc-dc-freq-hz = <410000>;142 adi,dc-dc-max-microvolt = <23000000>;143 channel@0 {144 reg = <0>;145 adi,mode = <4>;146 adi,ext-current-sense-resistor;147 adi,slew = <0 64000 1>;148 };149 channel@1 {150 reg = <1>;151 adi,mode = <4>;152 adi,ext-current-sense-resistor;153 adi,slew = <0 64000 1>;154 };155 channel@2 {156 reg = <2>;157 adi,mode = <4>;158 adi,ext-current-sense-resistor;159 adi,slew = <0 64000 1>;160 };161 channel@3 {162 reg = <3>;163 adi,mode = <4>;164 adi,ext-current-sense-resistor;165 adi,slew = <0 64000 1>;166 };167 };168 };169...170