From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> Add device tree bindings document for the Texas Instruments ADS7924 ADC. Signed-off-by: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> --- .../bindings/iio/adc/ti,ads7924.yaml | 103 ++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml new file mode 100644 index 000000000000..5408ec95e417 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml @@ -0,0 +1,103 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,ads7924.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI ADS7924 4 channels 12 bits I2C analog to digital converter + +maintainers: + - Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> + +description: | + Texas Instruments ADS7924 4 channels 12 bits I2C analog to digital converter + + Specifications: + https://www.ti.com/lit/gpn/ads7924 + +properties: + compatible: + const: ti,ads7924 + + vref-supply: + description: + The regulator supply for the ADC reference voltage (AVDD) + + reg: + maxItems: 1 + + reset-gpios: + description: + GPIO used for controlling the reset pin + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - vref-supply + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +patternProperties: + "^channel@[0-3]+$": + type: object + description: + Child nodes needed for each channel that the platform uses. + + properties: + reg: + description: | + 0: Voltage over AIN0 and GND. + 1: Voltage over AIN1 and GND. + 2: Voltage over AIN2 and GND. + 3: Voltage over AIN3 and GND. + items: + - minimum: 0 + maximum: 3 + + required: + - reg + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + adc@48 { + compatible = "ti,ads7924"; + reg = <0x48>; + vref-supply = <&ads7924_reg>; + reset-gpios = <&gpio 5 GPIO_ACTIVE_LOW>; + #address-cells = <1>; + #size-cells = <0>; + channel@0 { + reg = <0>; + label = "CH0"; + }; + channel@1 { + reg = <1>; + label = "CH1"; + }; + channel@2 { + reg = <2>; + label = "CH2"; + }; + channel@3 { + reg = <3>; + label = "CH3"; + }; + }; + }; +... -- 2.30.2
