From: David Lechner <dlechner@xxxxxxxxxxxx> This adds a binding specification for the Analog Devices Inc. AD7380 family of ADCs. Signed-off-by: David Lechner <dlechner@xxxxxxxxxxxx> Signed-off-by: Julien Stephan <jstephan@xxxxxxxxxxxx> Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> --- .../devicetree/bindings/iio/adc/adi,ad7380.yaml | 82 ++++++++++++++++++++++ MAINTAINERS | 9 +++ 2 files changed, 91 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml new file mode 100644 index 000000000000..5e1ee0ebe0a2 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7380.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices Simultaneous Sampling Analog to Digital Converters + +maintainers: + - Michael Hennerich <Michael.Hennerich@xxxxxxxxxx> + - Nuno Sá <nuno.sa@xxxxxxxxxx> + +description: | + * https://www.analog.com/en/products/ad7380.html + * https://www.analog.com/en/products/ad7381.html + +$ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + enum: + - adi,ad7380 + - adi,ad7381 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 80000000 + spi-cpol: true + spi-cpha: true + + vcc-supply: + description: A 3V to 3.6V supply that powers the chip. + + vlogic-supply: + description: + A 1.65V to 3.6V supply for the logic pins. + + refio-supply: + description: + A 2.5V to 3.3V supply for the external reference voltage. When omitted, + the internal 2.5V reference is used. + + interrupts: + description: + When the device is using 1-wire mode, this property is used to optionally + specify the ALERT interrupt. + maxItems: 1 + +required: + - compatible + - reg + - vcc-supply + - vlogic-supply + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7380"; + reg = <0>; + + spi-cpol; + spi-cpha; + spi-max-frequency = <80000000>; + + interrupts = <27 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpio0>; + + vcc-supply = <&supply_3_3V>; + vlogic-supply = <&supply_3_3V>; + refio-supply = <&supply_2_5V>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 8ad79cf70552..5bb168937853 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -427,6 +427,15 @@ W: http://wiki.analog.com/AD7142 W: https://ez.analog.com/linux-software-drivers F: drivers/input/misc/ad714x.c +AD738X ADC DRIVER (AD7380/1/2/4) +M: Michael Hennerich <michael.hennerich@xxxxxxxxxx> +M: Nuno Sá <nuno.sa@xxxxxxxxxx> +R: David Lechner <dlechner@xxxxxxxxxxxx> +S: Supported +W: https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad738x +W: https://ez.analog.com/linux-software-drivers +F: Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml + AD7877 TOUCHSCREEN DRIVER M: Michael Hennerich <michael.hennerich@xxxxxxxxxx> S: Supported -- 2.44.0
