Add a new binding for new IIO ADS1018 driver. Signed-off-by: Iain Hunter <drhunter95@xxxxxxxxx> --- .../bindings/iio/adc/ti,ads1018.yaml | 109 ++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml new file mode 100644 index 000000000000..ba0fdfba2c45 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,ads1018.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI ADS1018 4 channel SPI analog to digital converter + +maintainers: + - Daniel Baluta <daniel.baluta@xxxxxxx> + +description: | + Datasheet at: https://www.ti.com/lit/gpn/ads1018 + Supports both single ended and differential channels. + +properties: + compatible: + const: ti,ads1018 + + 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 + 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: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@1 { + compatible = "ti,ads1018"; + reg = <0x1>; + #address-cells = <1>; + #size-cells = <0>; + channel@4 { + reg = <4>; + ti,gain = <3>; + ti,datarate = <5>; + }; + }; + }; +... -- 2.25.1
