hc
2025-02-14 bbb9540dc49f70f6b703d1c8d1b85fa5f602d86e
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma140.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
 
title: Cypress CY8CTMA140 series touchscreen controller bindings
 
maintainers:
  - Linus Walleij <linus.walleij@linaro.org>
 
allOf:
  - $ref: touchscreen.yaml#
 
properties:
  compatible:
    const: cypress,cy8ctma140
 
  reg:
    const: 0x20
 
  clock-frequency:
    description: I2C client clock frequency, defined for host
    minimum: 100000
    maximum: 400000
 
  interrupts:
    maxItems: 1
 
  vcpin-supply:
    description: Analog power supply regulator on VCPIN pin
 
  vdd-supply:
    description: Digital power supply regulator on VDD pin
 
  touchscreen-inverted-x: true
  touchscreen-inverted-y: true
  touchscreen-size-x: true
  touchscreen-size-y: true
  touchscreen-swapped-x-y: true
  touchscreen-max-pressure: true
 
additionalProperties: false
 
required:
  - compatible
  - reg
  - interrupts
  - touchscreen-size-x
  - touchscreen-size-y
  - touchscreen-max-pressure
 
examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;
      touchscreen@20 {
        compatible = "cypress,cy8ctma140";
        reg = <0x20>;
        touchscreen-size-x = <480>;
        touchscreen-size-y = <800>;
        touchscreen-max-pressure = <255>;
        interrupt-parent = <&gpio6>;
        interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
        vdd-supply = <&ab8500_ldo_aux2_reg>;
        vcpin-supply = <&ab8500_ldo_aux2_reg>;
      };
    };
 
...