xref: /freebsd/sys/contrib/device-tree/Bindings/iio/adc/ti,ads7138.yaml (revision 8ccc0d235c226d84112561d453c49904398d085c) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/adc/ti,ads7138.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Texas Instruments ADS7128/ADS7138 analog-to-digital converter (ADC)
8
9maintainers:
10  - Tobias Sperling <tobias.sperling@softing.com>
11
12description: |
13  The ADS7128 and ADS7138 chips are 12-bit, 8 channel analog-to-digital
14  converters (ADC) with build-in digital window comparator (DWC), using the
15  I2C interface.
16  ADS7128 differs in the addition of further hardware features, like a
17  root-mean-square (RMS) and a zero-crossing-detect (ZCD) module.
18
19  Datasheets:
20    https://www.ti.com/product/ADS7128
21    https://www.ti.com/product/ADS7138
22
23properties:
24  compatible:
25    enum:
26      - ti,ads7128
27      - ti,ads7138
28
29  reg:
30    maxItems: 1
31
32  avdd-supply:
33    description:
34      The regulator used as analog supply voltage as well as reference voltage.
35
36  interrupts:
37    description:
38      Interrupt on ALERT pin, triggers on low level.
39    maxItems: 1
40
41required:
42  - compatible
43  - reg
44  - avdd-supply
45
46additionalProperties: false
47
48examples:
49  - |
50    #include <dt-bindings/interrupt-controller/irq.h>
51    i2c {
52        #address-cells = <1>;
53        #size-cells = <0>;
54
55        adc@10 {
56            compatible = "ti,ads7138";
57            reg = <0x10>;
58            avdd-supply = <&reg_stb_3v3>;
59            interrupt-parent = <&gpio2>;
60            interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
61        };
62    };
63...
64