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Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml')
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diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml new file mode 100644 index 000000000..2c3c2cf21 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml @@ -0,0 +1,116 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,ads1015.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI ADS1015/ADS1115 4 channel I2C analog to digital converter + +maintainers: + - Daniel Baluta <daniel.baluta@nxp.com> + +description: | + Datasheet at: https://www.ti.com/lit/gpn/ads1015 + Supports both single ended and differential channels. + +properties: + compatible: + enum: + - ti,ads1015 + - ti,ads1115 + - ti,tla2024 + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +patternProperties: + "^channel@[0-7]+$": + type: object + additionalProperties: false + description: + Child nodes needed for each channel that the platform uses. + + properties: + reg: + description: | + 0: Voltage over AIN0 and AIN1. + 1: Voltage over AIN0 and AIN3. + 2: Voltage over AIN1 and AIN3. + 3: Voltage over AIN2 and AIN3. + 4: Voltage over AIN0 and GND. + 5: Voltage over AIN1 and GND. + 6: Voltage over AIN2 and GND. + 7: Voltage over AIN3 and GND. + items: + - minimum: 0 + maximum: 7 + + ti,gain: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 5 + description: | + pga is the programmable gain amplifier (values are full scale) + 0: +/- 6.144 V + 1: +/- 4.096 V + 2: +/- 2.048 V (default) + 3: +/- 1.024 V + 4: +/- 0.512 V + 5: +/- 0.256 V + + ti,datarate: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 6 + description: | + Data acquisition rate in samples per second + 0: 128 + 1: 250 + 2: 490 + 3: 920 + 4: 1600 (default) + 5: 2400 + 6: 3300 + + required: + - reg + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + adc@49 { + compatible = "ti,ads1015"; + reg = <0x49>; + #address-cells = <1>; + #size-cells = <0>; + channel@0 { + reg = <0>; + }; + channel@4 { + reg = <4>; + ti,gain = <3>; + ti,datarate = <5>; + }; + }; + }; +... |