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 allOf:
  17   - $ref: /schemas/input/touchscreen/touchscreen.yaml#
  18
  19 properties:
  20   compatible:
  21     enum:
  22       - elan,ekth6915
  23       - ilitek,ili2901
  24
  25   reg:
  26     const: 0x10
  27
  28   interrupts:
  29     maxItems: 1
  30
  31   panel: true
  32
  33   reset-gpios:
  34     description: Reset GPIO; not all touchscreens using eKTH6915 hook this up.
  35
  36   vcc33-supply:
  37     description: The 3.3V supply to the touchscreen.
  38
  39   vccio-supply:
  40     description:
  41       The IO supply to the touchscreen. Need not be specified if this is the
  42       same as the 3.3V supply.
  43
  44 required:
  45   - compatible
  46   - reg
  47   - interrupts
  48   - vcc33-supply
  49
  50 additionalProperties: false
  51
  52 examples:
  53   - |
  54     #include <dt-bindings/gpio/gpio.h>
  55     #include <dt-bindings/interrupt-controller/irq.h>
  56
  57     i2c {
  58       #address-cells = <1>;
  59       #size-cells = <0>;
  60
  61       ap_ts: touchscreen@10 {
  62         compatible = "elan,ekth6915";
  63         reg = <0x10>;
  64
  65         interrupt-parent = <&tlmm>;
  66         interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
  67
  68         reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
  69         vcc33-supply = <&pp3300_ts>;
  70       };
  71     };