1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/input/touch 4 $id: http://devicetree.org/schemas/input/touchscreen/zinitix,bt400.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Zinitix BT4xx and BT5xx series touchscr 7 title: Zinitix BT4xx and BT5xx series touchscreen controller
8 8
9 description: The Zinitix BT4xx and BT5xx serie 9 description: The Zinitix BT4xx and BT5xx series of touchscreen controllers
10 are Korea-produced touchscreens with embedde 10 are Korea-produced touchscreens with embedded microcontrollers. The
11 BT4xx series was produced 2010-2013 and the 11 BT4xx series was produced 2010-2013 and the BT5xx series 2013-2014.
12 12
13 maintainers: 13 maintainers:
14 - Michael Srba <Michael.Srba@seznam.cz> 14 - Michael Srba <Michael.Srba@seznam.cz>
15 - Linus Walleij <linus.walleij@linaro.org> 15 - Linus Walleij <linus.walleij@linaro.org>
16 16
17 allOf: 17 allOf:
18 - $ref: touchscreen.yaml# 18 - $ref: touchscreen.yaml#
19 - $ref: ../input.yaml# 19 - $ref: ../input.yaml#
20 20
21 properties: 21 properties:
22 $nodename: 22 $nodename:
23 pattern: "^touchscreen(@.*)?$" 23 pattern: "^touchscreen(@.*)?$"
24 24
25 compatible: 25 compatible:
26 enum: 26 enum:
27 - zinitix,bt402 27 - zinitix,bt402
28 - zinitix,bt403 28 - zinitix,bt403
29 - zinitix,bt404 29 - zinitix,bt404
30 - zinitix,bt412 30 - zinitix,bt412
31 - zinitix,bt413 31 - zinitix,bt413
32 - zinitix,bt431 32 - zinitix,bt431
33 - zinitix,bt432 33 - zinitix,bt432
34 - zinitix,bt531 34 - zinitix,bt531
35 - zinitix,bt532 35 - zinitix,bt532
36 - zinitix,bt538 36 - zinitix,bt538
37 - zinitix,bt541 37 - zinitix,bt541
38 - zinitix,bt548 38 - zinitix,bt548
39 - zinitix,bt554 39 - zinitix,bt554
40 - zinitix,at100 40 - zinitix,at100
41 41
42 reg: 42 reg:
43 description: I2C address on the I2C bus 43 description: I2C address on the I2C bus
44 44
45 clock-frequency: 45 clock-frequency:
46 description: I2C client clock frequency, d 46 description: I2C client clock frequency, defined for host when using
47 the device on the I2C bus 47 the device on the I2C bus
48 minimum: 0 48 minimum: 0
49 maximum: 400000 49 maximum: 400000
50 50
51 interrupts: 51 interrupts:
52 description: Interrupt to host 52 description: Interrupt to host
53 maxItems: 1 53 maxItems: 1
54 54
55 vcca-supply: 55 vcca-supply:
56 description: Analog power supply regulator 56 description: Analog power supply regulator on the VCCA pin
57 57
58 vdd-supply: 58 vdd-supply:
59 description: Digital power supply regulato 59 description: Digital power supply regulator on the VDD pin.
60 In older device trees this can be the ac 60 In older device trees this can be the accidental name for the analog
61 supply on the VCCA pin, and in that case 61 supply on the VCCA pin, and in that case the deprecated vddo-supply is
62 used for the digital power supply. 62 used for the digital power supply.
63 63
64 vddo-supply: 64 vddo-supply:
65 description: Deprecated name for the digit 65 description: Deprecated name for the digital power supply, use vdd-supply
66 as this reflects the real name of the pi 66 as this reflects the real name of the pin. If this supply is present,
67 the vdd-supply represents VCCA instead o 67 the vdd-supply represents VCCA instead of VDD. Implementers should first
68 check for this property, and if it is pr 68 check for this property, and if it is present assume that the vdd-supply
69 represents the analog supply. 69 represents the analog supply.
70 deprecated: true 70 deprecated: true
71 71
72 reset-gpios: 72 reset-gpios:
73 description: Reset line for the touchscree 73 description: Reset line for the touchscreen, should be tagged
74 as GPIO_ACTIVE_LOW 74 as GPIO_ACTIVE_LOW
75 75
76 zinitix,mode: 76 zinitix,mode:
77 description: Mode of reporting touch point 77 description: Mode of reporting touch points. Some modes may not work
78 with a particular ts firmware for unknow 78 with a particular ts firmware for unknown reasons. Available modes are
79 1 and 2. Mode 2 is the default and prefe 79 1 and 2. Mode 2 is the default and preferred.
80 $ref: /schemas/types.yaml#/definitions/uin 80 $ref: /schemas/types.yaml#/definitions/uint32
81 enum: [1, 2] 81 enum: [1, 2]
82 82
83 linux,keycodes: 83 linux,keycodes:
84 description: 84 description:
85 This property specifies an array of keyc 85 This property specifies an array of keycodes assigned to the
86 touch-keys that can be present in some t 86 touch-keys that can be present in some touchscreen configurations.
87 If the touch-keys are enabled, controlle 87 If the touch-keys are enabled, controller firmware will assign some
88 touch sense lines to those keys. 88 touch sense lines to those keys.
89 minItems: 1 89 minItems: 1
90 maxItems: 8 90 maxItems: 8
91 91
92 touchscreen-size-x: true 92 touchscreen-size-x: true
93 touchscreen-size-y: true 93 touchscreen-size-y: true
94 touchscreen-fuzz-x: true 94 touchscreen-fuzz-x: true
95 touchscreen-fuzz-y: true 95 touchscreen-fuzz-y: true
96 96
97 additionalProperties: false 97 additionalProperties: false
98 98
99 required: 99 required:
100 - compatible 100 - compatible
101 - reg 101 - reg
102 - interrupts 102 - interrupts
103 - touchscreen-size-x 103 - touchscreen-size-x
104 - touchscreen-size-y 104 - touchscreen-size-y
105 105
106 examples: 106 examples:
107 - | 107 - |
108 #include <dt-bindings/interrupt-controller 108 #include <dt-bindings/interrupt-controller/irq.h>
109 #include <dt-bindings/gpio/gpio.h> 109 #include <dt-bindings/gpio/gpio.h>
110 i2c { 110 i2c {
111 #address-cells = <1>; 111 #address-cells = <1>;
112 #size-cells = <0>; 112 #size-cells = <0>;
113 113
114 touchscreen@20 { 114 touchscreen@20 {
115 compatible = "zinitix,bt541"; 115 compatible = "zinitix,bt541";
116 reg = <0x20>; 116 reg = <0x20>;
117 interrupt-parent = <&gpio>; 117 interrupt-parent = <&gpio>;
118 interrupts = <13 IRQ_TYPE_EDGE_FALLING 118 interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
119 vcca-supply = <®_vcca_tsp>; 119 vcca-supply = <®_vcca_tsp>;
120 vdd-supply = <®_vdd_tsp>; 120 vdd-supply = <®_vdd_tsp>;
121 touchscreen-size-x = <540>; 121 touchscreen-size-x = <540>;
122 touchscreen-size-y = <960>; 122 touchscreen-size-y = <960>;
123 zinitix,mode = <2>; 123 zinitix,mode = <2>;
124 }; 124 };
125 }; 125 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.