78 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/iio/cdc/adi,ad7746.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor8 9maintainers:10 - Michael Hennerich <michael.hennerich@analog.com>11 12description: |13 AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor14 15 Specifications about the part can be found at:16 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7291.pdf17 18properties:19 compatible:20 enum:21 - adi,ad774522 - adi,ad774623 - adi,ad774724 25 reg:26 maxItems: 127 28 adi,excitation-vdd-permille:29 description: |30 Set VDD per mille to be used as the excitation voltage.31 $ref: /schemas/types.yaml#/definitions/uint3232 enum: [125, 250, 375, 500]33 34 adi,exca-output-en:35 description: Enables the EXCA pin as the excitation output.36 type: boolean37 38 adi,exca-output-invert:39 description: |40 Inverts the excitation output in the EXCA pin.41 Normally only one of the EXCX pins would be inverted, check the following42 application notes for more details43 https://www.analog.com/media/en/technical-documentation/application-notes/AN-1585.pdf44 type: boolean45 46 adi,excb-output-en:47 description: Enables the EXCB pin as the excitation output.48 type: boolean49 50 adi,excb-output-invert:51 description: Inverts the excitation output in the EXCB pin.52 type: boolean53 54required:55 - compatible56 - reg57 58additionalProperties: false59 60examples:61 - |62 i2c {63 #address-cells = <1>;64 #size-cells = <0>;65 66 ad7746: cdc@48 {67 compatible = "adi,ad7746";68 reg = <0x48>;69 adi,excitation-vdd-permille = <125>;70 71 adi,exca-output-en;72 adi,exca-output-invert;73 adi,excb-output-en;74 adi,excb-output-invert;75 };76 };77...78