adc.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/iio/adc/adc.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Generic IIO bindings for ADC channels
    8 
    9 maintainers:
   10   - Jonathan Cameron <jic23@kernel.org>
   11 
   12 description:
   13   A few properties are defined in a common way ADC channels.
   14 
   15 properties:
   16   $nodename:
   17     pattern: "^channel(@[0-9a-f]+)?$"
   18     description:
   19       A channel index should match reg.
   20 
   21   reg:
   22     maxItems: 1
   23 
   24   label:
   25     $ref: /schemas/types.yaml#/definitions/string
   26     description: Unique name to identify which channel this is.
   27 
   28   bipolar:
   29     $ref: /schemas/types.yaml#/definitions/flag
   30     description: If provided, the channel is to be used in bipolar mode.
   31 
   32   diff-channels:
   33     $ref: /schemas/types.yaml#/definitions/uint32-array
   34     maxItems: 2
   35     minItems: 2
   36     description:
   37       Many ADCs have dual Muxes to allow different input pins to be routed
   38       to both the positive and negative inputs of a differential ADC.
   39       The first value specifies the positive input pin, the second
   40       specifies the negative input pin.
   41 
   42   settling-time-us:
   43     description:
   44       Time between enabling the channel and first stable readings.
   45 
   46   oversampling-ratio:
   47     $ref: /schemas/types.yaml#/definitions/uint32
   48     description:
   49       Oversampling is used as replacement of or addition to the low-pass filter.
   50       In some cases, the desired filtering characteristics are a function the
   51       device design and can interact with other characteristics such as
   52       settling time.
   53 
   54 additionalProperties: true

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sys/contrib/device-tree/Bindings/iio/adc/adc.yaml