adi,ad5755.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/iio/dac/adi,ad5755.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Analog Devices AD5755 Multi-Channel DAC
    8 
    9 maintainers:
   10   - Sean Nyekjaer <sean.nyekjaer@prevas.dk>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - adi,ad5755
   16       - adi,ad5755-1
   17       - adi,ad5757
   18       - adi,ad5735
   19       - adi,ad5737
   20 
   21   reg:
   22     maxItems: 1
   23 
   24   spi-cpha:
   25     description: Either this or spi-cpol but not both.
   26   spi-cpol: true
   27 
   28   spi-max-frequency: true
   29 
   30   adi,ext-dc-dc-compenstation-resistor:
   31     $ref: /schemas/types.yaml#/definitions/flag
   32     description:
   33       Set if the hardware have an external resistor and thereby bypasses
   34       the internal compensation resistor.
   35 
   36   adi,dc-dc-phase:
   37     $ref: /schemas/types.yaml#/definitions/uint32
   38     enum: [0, 1, 2, 3]
   39     description: |
   40       Valid values for DC DC Phase control is:
   41       0: All dc-to-dc converters clock on the same edge.
   42       1: Channel A and Channel B clock on the same edge,
   43          Channel C and Channel D clock on opposite edges.
   44       2: Channel A and Channel C clock on the same edge,
   45          Channel B and Channel D clock on opposite edges.
   46       3: Channel A, Channel B, Channel C, and Channel D
   47          clock 90 degrees out of phase from each other.
   48 
   49   adi,dc-dc-freq-hz:
   50     enum: [250000, 410000, 650000]
   51 
   52   adi,dc-dc-max-microvolt:
   53     description:
   54       Maximum allowed Vboost voltage supplied by the dc-to-dc converter.
   55     enum: [23000000, 24500000, 27000000, 29500000]
   56 
   57   "#address-cells":
   58     const: 1
   59 
   60   "#size-cells":
   61     const: 0
   62 
   63   "#io-channel-cells":
   64     const: 1
   65 
   66 required:
   67   - compatible
   68   - reg
   69 
   70 additionalProperties: false
   71 
   72 patternProperties:
   73   "^channel@[0-7]$":
   74     type: object
   75     description: Child node to describe a channel
   76     properties:
   77       reg:
   78         maxItems: 1
   79 
   80       adi,mode:
   81         $ref: /schemas/types.yaml#/definitions/uint32
   82         minimum: 0
   83         maximum: 6
   84         description: |
   85           Valid values for DAC modes is:
   86           0: 0 V to 5 V voltage range.
   87           1: 0 V to 10 V voltage range.
   88           2: Plus minus 5 V voltage range.
   89           3: Plus minus 10 V voltage range.
   90           4: 4 mA to 20 mA current range.
   91           5: 0 mA to 20 mA current range.
   92           6: 0 mA to 24 mA current range.
   93 
   94       adi,ext-current-sense-resistor:
   95         $ref: /schemas/types.yaml#/definitions/flag
   96         description:
   97           Set if the hardware has an external current sense resistor
   98 
   99       adi,enable-voltage-overrange:
  100         $ref: /schemas/types.yaml#/definitions/flag
  101         description: Enable voltage overrange
  102 
  103       adi,slew:
  104         $ref: /schemas/types.yaml#/definitions/uint32-array
  105         description: |
  106           Array of slewrate settings should contain 3 fields:
  107           1: Should be either 0 or 1 in order to enable or disable slewrate.
  108           2: Slew rate update frequency
  109           3: Slew step size
  110         items:
  111           - enum: [0, 1]
  112           - enum: [64000, 32000, 16000, 8000, 4000, 2000, 1000, 500, 250, 125, 64, 32, 16, 8, 4, 0]
  113           - enum: [1, 2, 4, 16, 32, 64, 128, 256]
  114 
  115     required:
  116       - reg
  117 
  118     additionalProperties: false
  119 
  120 oneOf:
  121   - required:
  122       - spi-cpha
  123   - required:
  124       - spi-cpol
  125 
  126 examples:
  127   - |
  128     spi {
  129         #address-cells = <1>;
  130         #size-cells = <0>;
  131 
  132         dac@0 {
  133             #address-cells = <1>;
  134             #size-cells = <0>;
  135             compatible = "adi,ad5755";
  136             reg = <0>;
  137             spi-max-frequency = <1000000>;
  138             spi-cpha;
  139             adi,dc-dc-phase = <0>;
  140             adi,dc-dc-freq-hz = <410000>;
  141             adi,dc-dc-max-microvolt = <23000000>;
  142             channel@0 {
  143                 reg = <0>;
  144                 adi,mode = <4>;
  145                 adi,ext-current-sense-resistor;
  146                 adi,slew = <0 64000 1>;
  147             };
  148             channel@1 {
  149                 reg = <1>;
  150                 adi,mode = <4>;
  151                 adi,ext-current-sense-resistor;
  152                 adi,slew = <0 64000 1>;
  153             };
  154             channel@2 {
  155                 reg = <2>;
  156                 adi,mode = <4>;
  157                 adi,ext-current-sense-resistor;
  158                 adi,slew = <0 64000 1>;
  159             };
  160             channel@3 {
  161                 reg = <3>;
  162                 adi,mode = <4>;
  163                 adi,ext-current-sense-resistor;
  164                 adi,slew = <0 64000 1>;
  165             };
  166         };
  167     };
  168 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/iio/dac/adi,ad5755.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/iio/dac/adi,ad5755.yaml