117 lines
2.5 KiB
YAML
117 lines
2.5 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/ti,ads1015.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI ADS1015/ADS1115 4 channel I2C analog to digital converter
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maintainers:
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- Daniel Baluta <daniel.baluta@nxp.com>
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description: |
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Datasheet at: https://www.ti.com/lit/gpn/ads1015
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Supports both single ended and differential channels.
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properties:
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compatible:
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enum:
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- ti,ads1015
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- ti,ads1115
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- ti,tla2024
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reg:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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"#io-channel-cells":
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const: 1
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required:
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- compatible
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- reg
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- "#address-cells"
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- "#size-cells"
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additionalProperties: false
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patternProperties:
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"^channel@[0-7]+$":
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type: object
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additionalProperties: false
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description:
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Child nodes needed for each channel that the platform uses.
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properties:
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reg:
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description: |
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0: Voltage over AIN0 and AIN1.
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1: Voltage over AIN0 and AIN3.
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2: Voltage over AIN1 and AIN3.
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3: Voltage over AIN2 and AIN3.
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4: Voltage over AIN0 and GND.
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5: Voltage over AIN1 and GND.
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6: Voltage over AIN2 and GND.
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7: Voltage over AIN3 and GND.
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items:
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- minimum: 0
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maximum: 7
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ti,gain:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 5
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description: |
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pga is the programmable gain amplifier (values are full scale)
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0: +/- 6.144 V
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1: +/- 4.096 V
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2: +/- 2.048 V (default)
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3: +/- 1.024 V
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4: +/- 0.512 V
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5: +/- 0.256 V
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ti,datarate:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 6
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description: |
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Data acquisition rate in samples per second
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0: 128
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1: 250
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2: 490
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3: 920
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4: 1600 (default)
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5: 2400
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6: 3300
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required:
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- reg
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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adc@49 {
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compatible = "ti,ads1015";
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reg = <0x49>;
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#address-cells = <1>;
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#size-cells = <0>;
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channel@0 {
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reg = <0>;
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};
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channel@4 {
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reg = <4>;
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ti,gain = <3>;
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ti,datarate = <5>;
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};
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};
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};
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...
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