Commit 38a7f7d3 authored by Daniel Peng's avatar Daniel Peng Committed by Dmitry Torokhov
Browse files

dt-bindings: input: i2c-hid: Introduce FocalTech FT8112 



Create new binding file for the FocalTech FT8112 due to
new touchscreen chip. Confirm its compatible, reg for the
device via vendor, and set the interrupt and reset gpio
to map for Skywalker platform.
FocalTech FT8112 also uses vcc33/vccio power supply.

Signed-off-by: default avatarDaniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251117094041.300083-1-Daniel_Peng@pegatron.corp-partner.google.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 84910bc5

Documentation/devicetree/bindings/input/focaltech,ft8112.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/input/focaltech,ft8112.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: FocalTech FT8112 touchscreen controller



maintainers:

  - Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>



description:

  Supports the FocalTech FT8112 touchscreen controller.

  This touchscreen controller uses the i2c-hid protocol with a reset GPIO.



allOf:

  - $ref: /schemas/input/touchscreen/touchscreen.yaml#



properties:

  compatible:

    enum:

      - focaltech,ft8112



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  panel: true



  reset-gpios:

    maxItems: 1



  vcc33-supply: true



  vccio-supply: true



required:

  - compatible

  - reg

  - interrupts

  - vcc33-supply



additionalProperties: false



examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    #include <dt-bindings/interrupt-controller/irq.h>



    i2c {

      #address-cells = <1>;

      #size-cells = <0>;



      touchscreen@38 {

        compatible = "focaltech,ft8112";

        reg = <0x38>;



        interrupt-parent = <&pio>;

        interrupts = <15 IRQ_TYPE_LEVEL_LOW>;



        reset-gpios = <&pio 126 GPIO_ACTIVE_LOW>;

        vcc33-supply = <&pp3300_tchscr_x>;

      };

    };