xref: /freebsd/sys/contrib/device-tree/Bindings/iio/adc/maxim,max1241.yaml (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2# Copyright 2020 Alexandru Lazar
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/iio/adc/maxim,max1241.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Maxim MAX1241 12-bit, single-channel analog to digital converter
9
10maintainers:
11  - Alexandru Lazar <alazar@startmail.com>
12
13description: |
14  Bindings for the max1241 12-bit, single-channel ADC device. Datasheet
15  can be found at:
16    https://datasheets.maximintegrated.com/en/ds/MAX1240-MAX1241.pdf
17
18properties:
19  compatible:
20    enum:
21      - maxim,max1241
22
23  reg:
24    maxItems: 1
25
26  vdd-supply:
27    description:
28      Device tree identifier of the regulator that powers the ADC.
29
30  vref-supply:
31    description:
32      Device tree identifier of the regulator that provides the external
33      reference voltage.
34
35  shutdown-gpios:
36    description:
37      GPIO spec for the GPIO pin connected to the ADC's /SHDN pin. If
38      specified, the /SHDN pin will be asserted between conversions,
39      thus enabling power-down mode.
40    maxItems: 1
41
42required:
43  - compatible
44  - reg
45  - vdd-supply
46  - vref-supply
47
48allOf:
49  - $ref: /schemas/spi/spi-peripheral-props.yaml#
50
51unevaluatedProperties: false
52
53examples:
54  - |
55    #include <dt-bindings/gpio/gpio.h>
56    spi {
57        #address-cells = <1>;
58        #size-cells = <0>;
59
60        adc@0 {
61            compatible = "maxim,max1241";
62            reg = <0>;
63            vdd-supply = <&adc_vdd>;
64            vref-supply = <&adc_vref>;
65            spi-max-frequency = <1000000>;
66            shutdown-gpios = <&gpio 26 1>;
67        };
68    };
69