Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.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/cypress,cy8ctma140.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Cypress CY8CTMA140 series touchscreen controller bindings
   8
   9 maintainers:
  10   - Linus Walleij <linus.walleij@linaro.org>
  11
  12 allOf:
  13   - $ref: touchscreen.yaml#
  14
  15 properties:
  16   compatible:
  17     const: cypress,cy8ctma140
  18
  19   reg:
  20     const: 0x20
  21
  22   clock-frequency:
  23     description: I2C client clock frequency, defined for host
  24     minimum: 100000
  25     maximum: 400000
  26
  27   interrupts:
  28     maxItems: 1
  29
  30   vcpin-supply:
  31     description: Analog power supply regulator on VCPIN pin
  32
  33   vdd-supply:
  34     description: Digital power supply regulator on VDD pin
  35
  36   touchscreen-inverted-x: true
  37   touchscreen-inverted-y: true
  38   touchscreen-size-x: true
  39   touchscreen-size-y: true
  40   touchscreen-swapped-x-y: true
  41   touchscreen-max-pressure: true
  42
  43 additionalProperties: false
  44
  45 required:
  46   - compatible
  47   - reg
  48   - interrupts
  49   - touchscreen-size-x
  50   - touchscreen-size-y
  51   - touchscreen-max-pressure
  52
  53 examples:
  54   - |
  55     #include <dt-bindings/interrupt-controller/irq.h>
  56     i2c {
  57       #address-cells = <1>;
  58       #size-cells = <0>;
  59       touchscreen@20 {
  60         compatible = "cypress,cy8ctma140";
  61         reg = <0x20>;
  62         touchscreen-size-x = <480>;
  63         touchscreen-size-y = <800>;
  64         touchscreen-max-pressure = <255>;
  65         interrupt-parent = <&gpio6>;
  66         interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
  67         vdd-supply = <&ab8500_ldo_aux2_reg>;
  68         vcpin-supply = <&ab8500_ldo_aux2_reg>;
  69       };
  70     };
  71
  72 ...