1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/iio/adc/ti, 4 $id: http://devicetree.org/schemas/iio/adc/ti,tsc2046.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Texas Instruments TSC2046 touch screen 7 title: Texas Instruments TSC2046 touch screen controller.
8 8
9 maintainers: 9 maintainers:
10 - Oleksij Rempel <o.rempel@pengutronix.de> 10 - Oleksij Rempel <o.rempel@pengutronix.de>
11 11
12 description: | 12 description: |
13 TSC2046 is a touch screen controller with 8 13 TSC2046 is a touch screen controller with 8 channels ADC.
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 enum: 17 enum:
18 - ti,tsc2046e-adc 18 - ti,tsc2046e-adc
19 19
20 reg: 20 reg:
21 maxItems: 1 21 maxItems: 1
22 22
23 interrupts: 23 interrupts:
24 maxItems: 1 24 maxItems: 1
25 25
26 vref-supply: 26 vref-supply:
27 description: Optional supply of the refere 27 description: Optional supply of the reference voltage
28 28
29 "#io-channel-cells": 29 "#io-channel-cells":
30 const: 1 30 const: 1
31 31
32 '#address-cells': 32 '#address-cells':
33 const: 1 33 const: 1
34 34
35 '#size-cells': 35 '#size-cells':
36 const: 0 36 const: 0
37 37
38 required: 38 required:
39 - compatible 39 - compatible
40 - reg 40 - reg
41 41
42 patternProperties: 42 patternProperties:
43 "^channel@[0-7]$": 43 "^channel@[0-7]$":
44 $ref: adc.yaml 44 $ref: adc.yaml
45 type: object 45 type: object
46 46
47 properties: 47 properties:
48 reg: 48 reg:
49 description: | 49 description: |
50 The channel number. It can have up t 50 The channel number. It can have up to 8 channels
51 items: 51 items:
52 minimum: 0 52 minimum: 0
53 maximum: 7 53 maximum: 7
54 54
55 settling-time-us: true 55 settling-time-us: true
56 oversampling-ratio: true 56 oversampling-ratio: true
57 57
58 required: 58 required:
59 - reg 59 - reg
60 60
61 additionalProperties: false 61 additionalProperties: false
62 62
63 allOf: 63 allOf:
64 - $ref: /schemas/spi/spi-peripheral-props.ya 64 - $ref: /schemas/spi/spi-peripheral-props.yaml#
65 65
66 unevaluatedProperties: false 66 unevaluatedProperties: false
67 67
68 examples: 68 examples:
69 - | 69 - |
70 #include <dt-bindings/interrupt-controller 70 #include <dt-bindings/interrupt-controller/irq.h>
71 spi { 71 spi {
72 #address-cells = <1>; 72 #address-cells = <1>;
73 #size-cells = <0>; 73 #size-cells = <0>;
74 74
75 adc@0 { 75 adc@0 {
76 compatible = "ti,tsc2046e-adc"; 76 compatible = "ti,tsc2046e-adc";
77 reg = <0>; 77 reg = <0>;
78 spi-max-frequency = <1000000>; 78 spi-max-frequency = <1000000>;
79 interrupts-extended = <&gpio3 20 I 79 interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>;
80 #io-channel-cells = <1>; 80 #io-channel-cells = <1>;
81 81
82 #address-cells = <1>; 82 #address-cells = <1>;
83 #size-cells = <0>; 83 #size-cells = <0>;
84 84
85 channel@0 { 85 channel@0 {
86 reg = <0>; 86 reg = <0>;
87 }; 87 };
88 channel@1 { 88 channel@1 {
89 reg = <1>; 89 reg = <1>;
90 settling-time-us = <700>; 90 settling-time-us = <700>;
91 oversampling-ratio = <5>; 91 oversampling-ratio = <5>;
92 }; 92 };
93 channel@2 { 93 channel@2 {
94 reg = <2>; 94 reg = <2>;
95 }; 95 };
96 channel@3 { 96 channel@3 {
97 reg = <3>; 97 reg = <3>;
98 settling-time-us = <700>; 98 settling-time-us = <700>;
99 oversampling-ratio = <5>; 99 oversampling-ratio = <5>;
100 }; 100 };
101 channel@4 { 101 channel@4 {
102 reg = <4>; 102 reg = <4>;
103 settling-time-us = <700>; 103 settling-time-us = <700>;
104 oversampling-ratio = <5>; 104 oversampling-ratio = <5>;
105 }; 105 };
106 channel@5 { 106 channel@5 {
107 reg = <5>; 107 reg = <5>;
108 settling-time-us = <700>; 108 settling-time-us = <700>;
109 oversampling-ratio = <5>; 109 oversampling-ratio = <5>;
110 }; 110 };
111 channel@6 { 111 channel@6 {
112 reg = <6>; 112 reg = <6>;
113 }; 113 };
114 channel@7 { 114 channel@7 {
115 reg = <7>; 115 reg = <7>;
116 }; 116 };
117 }; 117 };
118 }; 118 };
119 ... 119 ...
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