Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.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/elan,elants_i2c.yaml#"
   5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
   6
   7 title: Elantech I2C Touchscreen
   8
   9 maintainers:
  10   - David Heidelberg <david@ixit.cz>
  11
  12 allOf:
  13   - $ref: touchscreen.yaml#
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - enum:
  19           - elan,ektf3624
  20           - elan,ekth3500
  21       - items:
  22           - const: elan,ekth3915
  23           - const: elan,ekth3500
  24
  25   reg:
  26     maxItems: 1
  27
  28   interrupts:
  29     maxItems: 1
  30
  31   wakeup-source:
  32     type: boolean
  33     description: touchscreen can be used as a wakeup source.
  34
  35   reset-gpios:
  36     maxItems: 1
  37     description: reset gpio the chip is connected to.
  38
  39   vcc33-supply:
  40     description: a phandle for the regulator supplying 3.3V power.
  41
  42   vccio-supply:
  43     description: a phandle for the regulator supplying IO power.
  44
  45   touchscreen-inverted-x: true
  46   touchscreen-inverted-y: true
  47   touchscreen-size-x: true
  48   touchscreen-size-y: true
  49   touchscreen-swapped-x-y: true
  50
  51 additionalProperties: false
  52
  53 required:
  54   - compatible
  55   - reg
  56   - interrupts
  57
  58 examples:
  59   - |
  60     #include <dt-bindings/interrupt-controller/irq.h>
  61
  62     i2c {
  63         #address-cells = <1>;
  64         #size-cells = <0>;
  65
  66         touchscreen@10 {
  67             compatible = "elan,ekth3500";
  68             reg = <0x10>;
  69
  70             interrupt-parent = <&gpio4>;
  71             interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
  72             wakeup-source;
  73         };
  74     };