ti,ads1015.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/adc/ti,ads1015.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: TI ADS1015/ADS1115 4 channel I2C analog to digital converter
    8 
    9 maintainers:
   10   - Daniel Baluta <daniel.baluta@nxp.com>
   11 
   12 description: |
   13   Datasheet at: https://www.ti.com/lit/gpn/ads1015
   14   Supports both single ended and differential channels.
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - ti,ads1015
   20       - ti,ads1115
   21       - ti,tla2024
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   "#address-cells":
   27     const: 1
   28 
   29   "#size-cells":
   30     const: 0
   31 
   32   "#io-channel-cells":
   33     const: 1
   34 
   35 required:
   36   - compatible
   37   - reg
   38   - "#address-cells"
   39   - "#size-cells"
   40 
   41 additionalProperties: false
   42 
   43 patternProperties:
   44   "^channel@[0-7]+$":
   45     type: object
   46     description:
   47       Child nodes needed for each channel that the platform uses.
   48 
   49     properties:
   50       reg:
   51         description: |
   52           0: Voltage over AIN0 and AIN1.
   53           1: Voltage over AIN0 and AIN3.
   54           2: Voltage over AIN1 and AIN3.
   55           3: Voltage over AIN2 and AIN3.
   56           4: Voltage over AIN0 and GND.
   57           5: Voltage over AIN1 and GND.
   58           6: Voltage over AIN2 and GND.
   59           7: Voltage over AIN3 and GND.
   60         items:
   61           - minimum: 0
   62             maximum: 7
   63 
   64       ti,gain:
   65         $ref: /schemas/types.yaml#/definitions/uint32
   66         minimum: 0
   67         maximum: 5
   68         description: |
   69           pga is the programmable gain amplifier (values are full scale)
   70           0: +/- 6.144 V
   71           1: +/- 4.096 V
   72           2: +/- 2.048 V (default)
   73           3: +/- 1.024 V
   74           4: +/- 0.512 V
   75           5: +/- 0.256 V
   76 
   77       ti,datarate:
   78         $ref: /schemas/types.yaml#/definitions/uint32
   79         minimum: 0
   80         maximum: 6
   81         description: |
   82           Data acquisition rate in samples per second
   83           0: 128
   84           1: 250
   85           2: 490
   86           3: 920
   87           4: 1600 (default)
   88           5: 2400
   89           6: 3300
   90 
   91     required:
   92       - reg
   93 
   94 examples:
   95   - |
   96     i2c {
   97         #address-cells = <1>;
   98         #size-cells = <0>;
   99 
  100         adc@49 {
  101             compatible = "ti,ads1015";
  102             reg = <0x49>;
  103             #address-cells = <1>;
  104             #size-cells = <0>;
  105             channel@0 {
  106               reg = <0>;
  107             };
  108             channel@4 {
  109               reg = <4>;
  110               ti,gain = <3>;
  111               ti,datarate = <5>;
  112             };
  113         };
  114     };
  115 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/iio/adc/ti,ads1015.yaml

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sys/contrib/device-tree/Bindings/iio/adc/ti,ads1015.yaml