xref: /linux/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml (revision 6315d93541f8a5f77c5ef5c4f25233e66d189603) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/touchscreen/apple,z2-multitouch.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Apple touchscreens attached using the Z2 protocol
8
9maintainers:
10  - Sasha Finkelstein <fnkl.kernel@gmail.com>
11
12description: A series of touschscreen controllers used in Apple products
13
14allOf:
15  - $ref: touchscreen.yaml#
16  - $ref: /schemas/spi/spi-peripheral-props.yaml#
17
18properties:
19  compatible:
20    enum:
21      - apple,j293-touchbar
22      - apple,j493-touchbar
23
24  interrupts:
25    maxItems: 1
26
27  reset-gpios:
28    maxItems: 1
29
30  firmware-name:
31    maxItems: 1
32
33  apple,z2-cal-blob:
34    $ref: /schemas/types.yaml#/definitions/uint8-array
35    maxItems: 4096
36    description:
37      Calibration blob supplied by the bootloader
38
39required:
40  - compatible
41  - interrupts
42  - reset-gpios
43  - firmware-name
44  - touchscreen-size-x
45  - touchscreen-size-y
46
47unevaluatedProperties: false
48
49examples:
50  - |
51    #include <dt-bindings/gpio/gpio.h>
52    #include <dt-bindings/interrupt-controller/irq.h>
53
54    spi {
55        #address-cells = <1>;
56        #size-cells = <0>;
57
58        touchscreen@0 {
59            compatible = "apple,j293-touchbar";
60            reg = <0>;
61            spi-max-frequency = <11500000>;
62            reset-gpios = <&pinctrl_ap 139 GPIO_ACTIVE_LOW>;
63            interrupts-extended = <&pinctrl_ap 194 IRQ_TYPE_EDGE_FALLING>;
64            firmware-name = "apple/dfrmtfw-j293.bin";
65            touchscreen-size-x = <23045>;
66            touchscreen-size-y = <640>;
67        };
68    };
69
70...
71