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 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Texas Instruments TSC2046 touch screen controller.
8
9 maintainers:
10 - Oleksij Rempel <o.rempel@pengutronix.de>
11
12 description: |
13 TSC2046 is a touch screen controller with 8 channels ADC.
14
15 properties:
16 compatible:
17 enum:
18 - ti,tsc2046e-adc
19
20 reg:
21 maxItems: 1
22
23 interrupts:
24 maxItems: 1
25
26 spi-max-frequency: true
27
28 "#io-channel-cells":
29 const: 1
30
31 '#address-cells':
32 const: 1
33
34 '#size-cells':
35 const: 0
36
37 required:
38 - compatible
39 - reg
40
41 patternProperties:
42 "^channel@[0-7]$":
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
62 additionalProperties: false
63
64 examples:
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 ...
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