Add bindings for MAX14001. The MAX14001 is configurable, isolated 10-bit ADCs for multi-range binary inputs. Signed-off-by: Kim Seer Paller <kimseer.paller@xxxxxxxxxx> --- .../bindings/iio/adc/adi,max14001.yaml | 83 +++++++++++++++++++ MAINTAINERS | 7 ++ 2 files changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml new file mode 100644 index 000000000..4546bf595 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2023 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,max14001.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MAX14001 ADC device driver + +maintainers: + - Kim Seer Paller <kimseer.paller@xxxxxxxxxx> + +description: | + Single channel 10 bit ADC with SPI interface. Datasheet + can be found here: + https://www.analog.com/media/en/technical-documentation/data-sheets/MAX14001-MAX14002.pdf + +properties: + compatible: + enum: + - adi,max14001 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 5000000 + + vref-supply: + description: Voltage reference to establish input scaling. + + adi,use-fadc: + $ref: /schemas/types.yaml#/definitions/flag + type: boolean + description: If set, the filtered ADC data (FADC register) will be read, + otherwise the unfiltered ADC data (ADC register) will be read. + + adi,inrush-mode: + $ref: /schemas/types.yaml#/definitions/flag + type: boolean + description: If set, the device will use FAST inrush mode, + otherwise the device will use ADC controlled inrush mode. + + adi,filter: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 0, 1, 2, 3 ] + description: | + 0: Filtering off + 1: Average 2 readings + 2: Average 4 readings + 3: Average 8 readings + + adi,current-source: + $ref: /schemas/types.yaml#/definitions/flag + type: boolean + description: If set, the 70uA current source will be connected to the REFIN pin, + otherwise the current source will be turned off. + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + adc@0 { + compatible = "adi,max14001"; + reg = <0>; + spi-max-frequency = <5000000>; + vref-supply = <&vref_reg>; + adi,use-fadc; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 0e64787aa..766847ad2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12573,6 +12573,13 @@ S: Maintained F: Documentation/devicetree/bindings/sound/max9860.txt F: sound/soc/codecs/max9860.* +MAX14001 IIO ADC DRIVER +M: Kim Seer Paller <kimseer.paller@xxxxxxxxxx> +L: linux-iio@xxxxxxxxxxxxxxx +S: Supported +W: https://ez.analog.com/linux-software-drivers +F: Documentation/devicetree/bindings/iio/dac/adi,max14001.yaml + MAXBOTIX ULTRASONIC RANGER IIO DRIVER M: Andreas Klinger <ak@xxxxxxxxxxxxx> L: linux-iio@xxxxxxxxxxxxxxx -- 2.34.1
