xref: /linux/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml (revision b83deaa741558babf4b8d51d34f6637ccfff1b26) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/adc/ti,tsc2046.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Texas Instruments TSC2046 touch screen controller.
8
9maintainers:
10  - Oleksij Rempel <o.rempel@pengutronix.de>
11
12description: |
13  TSC2046 is a touch screen controller with 8 channels ADC.
14
15properties:
16  compatible:
17    enum:
18      - ti,tsc2046e-adc
19
20  reg:
21    maxItems: 1
22
23  interrupts:
24    maxItems: 1
25
26  spi-max-frequency: true
27
28  "#io-channel-cells":
29    const: 1
30
31  '#address-cells':
32    const: 1
33
34  '#size-cells':
35    const: 0
36
37required:
38  - compatible
39  - reg
40
41patternProperties:
42  "^channel@[0-7]$":
43    $ref: "adc.yaml"
44    type: object
45
46    properties:
47      reg:
48        description: |
49          The channel number. It can have up to 8 channels
50        items:
51          minimum: 0
52          maximum: 7
53
54      settling-time-us: true
55      oversampling-ratio: true
56
57    required:
58      - reg
59
60    additionalProperties: false
61
62additionalProperties: false
63
64examples:
65  - |
66    #include <dt-bindings/interrupt-controller/irq.h>
67    spi {
68        #address-cells = <1>;
69        #size-cells = <0>;
70
71        adc@0 {
72            compatible = "ti,tsc2046e-adc";
73            reg = <0>;
74            spi-max-frequency = <1000000>;
75            interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>;
76            #io-channel-cells = <1>;
77
78            #address-cells = <1>;
79            #size-cells = <0>;
80
81            channel@0 {
82              reg = <0>;
83            };
84            channel@1 {
85              reg = <1>;
86              settling-time-us = <700>;
87              oversampling-ratio = <5>;
88            };
89            channel@2 {
90              reg = <2>;
91            };
92            channel@3 {
93              reg = <3>;
94              settling-time-us = <700>;
95              oversampling-ratio = <5>;
96            };
97            channel@4 {
98              reg = <4>;
99              settling-time-us = <700>;
100              oversampling-ratio = <5>;
101            };
102            channel@5 {
103              reg = <5>;
104              settling-time-us = <700>;
105              oversampling-ratio = <5>;
106            };
107            channel@6 {
108              reg = <6>;
109            };
110            channel@7 {
111              reg = <7>;
112            };
113        };
114    };
115...
116