Documentation/devicetree/bindings/input/elan,ekth6915.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,ekth6915.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Elan eKTH6915 touchscreen controller
   8
   9 maintainers:
  10   - Douglas Anderson <dianders@chromium.org>
  11
  12 description:
  13   Supports the Elan eKTH6915 touchscreen controller.
  14   This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
  15
  16 properties:
  17   compatible:
  18     items:
  19       - const: elan,ekth6915
  20
  21   reg:
  22     const: 0x10
  23
  24   interrupts:
  25     maxItems: 1
  26
  27   reset-gpios:
  28     description: Reset GPIO; not all touchscreens using eKTH6915 hook this up.
  29
  30   vcc33-supply:
  31     description: The 3.3V supply to the touchscreen.
  32
  33   vccio-supply:
  34     description:
  35       The IO supply to the touchscreen. Need not be specified if this is the
  36       same as the 3.3V supply.
  37
  38 required:
  39   - compatible
  40   - reg
  41   - interrupts
  42   - vcc33-supply
  43
  44 additionalProperties: false
  45
  46 examples:
  47   - |
  48     #include <dt-bindings/gpio/gpio.h>
  49     #include <dt-bindings/interrupt-controller/irq.h>
  50
  51     i2c {
  52       #address-cells = <1>;
  53       #size-cells = <0>;
  54
  55       ap_ts: touchscreen@10 {
  56         compatible = "elan,ekth6915";
  57         reg = <0x10>;
  58
  59         interrupt-parent = <&tlmm>;
  60         interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
  61
  62         reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
  63         vcc33-supply = <&pp3300_ts>;
  64       };
  65     };