xref: /freebsd/sys/contrib/device-tree/Bindings/iio/adc/maxim,max1241.yaml (revision c7a063741720ef81d4caa4613242579d12f1d605) 
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
42  spi-max-frequency: true
43
44required:
45  - compatible
46  - reg
47  - vdd-supply
48  - vref-supply
49
50additionalProperties: false
51
52examples:
53  - |
54    #include <dt-bindings/gpio/gpio.h>
55    spi {
56      #address-cells = <1>;
57      #size-cells = <0>;
58
59        adc@0 {
60            compatible = "maxim,max1241";
61            reg = <0>;
62            vdd-supply = <&adc_vdd>;
63            vref-supply = <&adc_vref>;
64            spi-max-frequency = <1000000>;
65            shutdown-gpios = <&gpio 26 1>;
66        };
67    };
68