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dt-bindings: iio: adc: add ti,ads1119
Add devicetree bindings for Texas Instruments ADS1119 16-bit ADC
with I2C interface.
Datasheet: https://www.ti.com/lit/gpn/ads1119
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20240617183215.4080-2-francesco@dolcini.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
João Paulo Gonçalves
and committed by
Jonathan Cameron
54b0825f
d9b329a9
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+155
Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
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Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
···
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/ti,ads1119.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments ADS1119 ADC
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maintainers:
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- João Paulo Gonçalves <jpaulo.silvagoncalves@gmail.com>
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description:
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The TI ADS1119 is a precision 16-bit ADC over I2C that offers single-ended and
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differential measurements using a multiplexed input. It features a programmable
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gain, a programmable sample rate, an internal oscillator and voltage reference,
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and a 50/60Hz rejection filter.
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properties:
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compatible:
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const: ti,ads1119
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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reset-gpios:
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maxItems: 1
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avdd-supply: true
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dvdd-supply: true
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vref-supply:
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description:
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ADC external reference voltage (VREF).
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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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- avdd-supply
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- dvdd-supply
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patternProperties:
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"^channel@([0-6])$":
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$ref: adc.yaml
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type: object
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properties:
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reg:
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minimum: 0
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maximum: 6
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diff-channels:
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description:
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Differential input channels AIN0-AIN1, AIN2-AIN3 and AIN1-AIN2.
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oneOf:
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- items:
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- const: 0
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- const: 1
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- items:
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- const: 2
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- const: 3
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- items:
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- const: 1
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- const: 2
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single-channel:
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description:
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Single-ended input channels AIN0, AIN1, AIN2 and AIN3.
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minimum: 0
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maximum: 3
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oneOf:
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- required:
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- diff-channels
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- required:
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- single-channel
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required:
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- reg
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unevaluatedProperties: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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adc@40 {
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compatible = "ti,ads1119";
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reg = <0x40>;
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interrupt-parent = <&gpio1>;
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interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
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reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
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avdd-supply = <®_avdd_ads1119>;
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dvdd-supply = <®_dvdd_ads1119>;
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vref-supply = <®_vref_ads1119>;
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#address-cells = <1>;
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#size-cells = <0>;
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#io-channel-cells = <1>;
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channel@0 {
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reg = <0>;
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single-channel = <0>;
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};
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channel@1 {
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reg = <1>;
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diff-channels = <0 1>;
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};
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channel@2 {
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reg = <2>;
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single-channel = <3>;
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};
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channel@3 {
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reg = <3>;
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single-channel = <1>;
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};
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channel@4 {
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reg = <4>;
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single-channel = <2>;
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};
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channel@5 {
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reg = <5>;
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diff-channels = <1 2>;
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};
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channel@6 {
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reg = <6>;
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diff-channels = <2 3>;
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};
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};
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};
+7
MAINTAINERS
+7
MAINTAINERS
···
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S: Odd Fixes
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F: drivers/gpio/gpio-thunderx.c
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TI ADS1119 ADC DRIVER
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M: Francesco Dolcini <francesco@dolcini.it>
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M: João Paulo Gonçalves <jpaulo.silvagoncalves@gmail.com>
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L: linux-iio@vger.kernel.org
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S: Maintained
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F: Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
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+
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TI ADS7924 ADC DRIVER
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M: Hugo Villeneuve <hvilleneuve@dimonoff.com>
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L: linux-iio@vger.kernel.org