Documentation/devicetree/bindings/input/elan,ekth3000.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/elan,ekth3000.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Elantech I2C Touchpad
   8
   9 maintainers:
  10   - Dmitry Torokhov <dmitry.torokhov@gmail.com>
  11
  12 allOf:
  13   - $ref: touchscreen/touchscreen.yaml#
  14
  15 properties:
  16   compatible:
  17     const: elan,ekth3000
  18
  19   reg:
  20     maxItems: 1
  21
  22   interrupts:
  23     maxItems: 1
  24
  25   wakeup-source:
  26     type: boolean
  27     description: touchpad can be used as a wakeup source
  28
  29   vcc-supply:
  30     description: a phandle for the regulator supplying 3.3V power
  31
  32   elan,trackpoint:
  33     type: boolean
  34     description: touchpad can support a trackpoint
  35
  36   elan,clickpad:
  37     type: boolean
  38     description: touchpad is a clickpad (the entire surface is a button)
  39
  40   elan,middle-button:
  41     type: boolean
  42     description: touchpad has a physical middle button
  43
  44   elan,x_traces:
  45     $ref: /schemas/types.yaml#/definitions/uint32
  46     description: number of antennas on the x axis
  47
  48   elan,y_traces:
  49     $ref: /schemas/types.yaml#/definitions/uint32
  50     description: number of antennas on the y axis
  51
  52   touchscreen-size-x: true
  53
  54   touchscreen-size-y: true
  55
  56   touchscreen-x-mm: true
  57
  58   touchscreen-y-mm: true
  59
  60 required:
  61   - compatible
  62   - reg
  63   - interrupts
  64
  65 additionalProperties: false
  66
  67 examples:
  68   - |
  69     #include <dt-bindings/interrupt-controller/irq.h>
  70     i2c {
  71         #address-cells = <1>;
  72         #size-cells = <0>;
  73
  74         touchpad@15 {
  75             compatible = "elan,ekth3000";
  76             reg = <0x15>;
  77             interrupt-parent = <&gpio4>;
  78             interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
  79             wakeup-source;
  80         };
  81     };