cypress,tt21000.yaml

  1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/input/touchscreen/cypress,tt21000.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Cypress TT21000 touchscreen controller
  8
  9description: The Cypress TT21000 series (also known as "CYTTSP5" after
 10  the marketing name Cypress TrueTouch Standard Product series 5).
 11
 12maintainers:
 13  - Alistair Francis <alistair@alistair23.me>
 14
 15allOf:
 16  - $ref: touchscreen.yaml#
 17
 18properties:
 19  compatible:
 20    const: cypress,tt21000
 21
 22  reg:
 23    maxItems: 1
 24
 25  '#address-cells':
 26    const: 1
 27
 28  '#size-cells':
 29    const: 0
 30
 31  interrupts:
 32    maxItems: 1
 33
 34  vdd-supply:
 35    description: Regulator for voltage.
 36
 37  vddio-supply:
 38    description: Optional Regulator for I/O voltage.
 39
 40  reset-gpios:
 41    maxItems: 1
 42
 43  linux,keycodes:
 44    description: EV_ABS specific event code generated by the axis.
 45
 46  wakeup-source: true
 47
 48patternProperties:
 49  "^button@[0-9]+$":
 50    type: object
 51    $ref: ../input.yaml#
 52    properties:
 53      reg:
 54        maxItems: 1
 55      linux,keycodes:
 56        description: Keycode to emit
 57
 58    required:
 59      - reg
 60      - linux,keycodes
 61
 62    additionalProperties: false
 63
 64required:
 65  - compatible
 66  - reg
 67  - interrupts
 68  - vdd-supply
 69
 70unevaluatedProperties: false
 71
 72examples:
 73  - |
 74    #include <dt-bindings/interrupt-controller/irq.h>
 75    #include <dt-bindings/gpio/gpio.h>
 76    #include <dt-bindings/input/linux-event-codes.h>
 77
 78    i2c {
 79        #address-cells = <1>;
 80        #size-cells = <0>;
 81
 82        touchscreen@24 {
 83            #address-cells = <1>;
 84            #size-cells = <0>;
 85
 86            compatible = "cypress,tt21000";
 87            reg = <0x24>;
 88            pinctrl-names = "default";
 89            pinctrl-0 = <&tp_reset_ds203>;
 90            interrupt-parent = <&pio>;
 91            interrupts = <1 5 IRQ_TYPE_LEVEL_LOW>;
 92            reset-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>;
 93            vdd-supply = <&reg_touch>;
 94
 95            button@0 {
 96                reg = <0>;
 97                linux,keycodes = <KEY_HOMEPAGE>;
 98            };
 99
100            button@1 {
101                reg = <1>;
102                linux,keycodes = <KEY_MENU>;
103            };
104
105            button@2 {
106                reg = <2>;
107                linux,keycodes = <KEY_BACK>;
108            };
109        };
110    };
111...