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f3255b0e1c
Add documentation for the driver of ADS7128 and ADS7138 12-bit, 8-channel analog-to-digital converters. These ADCs have a wide operating range and a wide feature set. Communication is based on the I2C interface. ADS7128 differs in the addition of further hardware features, like a root-mean-square (RMS) and a zero-crossing-detect (ZCD) module. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Tobias Sperling <tobias.sperling@softing.com> Link: https://patch.msgid.link/20250213-adc_ml-v4-1-66b68f8fdb8c@softing.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
64 lines
1.5 KiB
YAML
64 lines
1.5 KiB
YAML
# 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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$id: http://devicetree.org/schemas/iio/adc/ti,ads7138.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments ADS7128/ADS7138 analog-to-digital converter (ADC)
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maintainers:
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- Tobias Sperling <tobias.sperling@softing.com>
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description: |
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The ADS7128 and ADS7138 chips are 12-bit, 8 channel analog-to-digital
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converters (ADC) with build-in digital window comparator (DWC), using the
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I2C interface.
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ADS7128 differs in the addition of further hardware features, like a
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root-mean-square (RMS) and a zero-crossing-detect (ZCD) module.
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Datasheets:
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https://www.ti.com/product/ADS7128
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https://www.ti.com/product/ADS7138
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properties:
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compatible:
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enum:
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- ti,ads7128
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- ti,ads7138
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reg:
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maxItems: 1
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avdd-supply:
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description:
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The regulator used as analog supply voltage as well as reference voltage.
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interrupts:
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description:
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Interrupt on ALERT pin, triggers on low level.
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maxItems: 1
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required:
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- compatible
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- reg
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- avdd-supply
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additionalProperties: false
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examples:
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- |
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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@10 {
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compatible = "ti,ads7138";
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reg = <0x10>;
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avdd-supply = <®_stb_3v3>;
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interrupt-parent = <&gpio2>;
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interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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...
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