Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/input/touchscreen/touchscreen.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Common touchscreen Bindings
   8
   9 maintainers:
  10   - Dmitry Torokhov <dmitry.torokhov@gmail.com>
  11
  12 properties:
  13   touchscreen-min-x:
  14     description: minimum x coordinate reported
  15     $ref: /schemas/types.yaml#/definitions/uint32
  16     default: 0
  17
  18   touchscreen-min-y:
  19     description: minimum y coordinate reported
  20     $ref: /schemas/types.yaml#/definitions/uint32
  21     default: 0
  22
  23   touchscreen-size-x:
  24     description: horizontal resolution of touchscreen (maximum x coordinate reported + 1)
  25     $ref: /schemas/types.yaml#/definitions/uint32
  26
  27   touchscreen-size-y:
  28     description: vertical resolution of touchscreen (maximum y coordinate reported + 1)
  29     $ref: /schemas/types.yaml#/definitions/uint32
  30
  31   touchscreen-max-pressure:
  32     description: maximum reported pressure (arbitrary range dependent on the controller)
  33     $ref: /schemas/types.yaml#/definitions/uint32
  34
  35   touchscreen-min-pressure:
  36     description: minimum pressure on the touchscreen to be achieved in order for the
  37                  touchscreen driver to report a touch event.
  38     $ref: /schemas/types.yaml#/definitions/uint32
  39
  40   touchscreen-fuzz-x:
  41     description: horizontal noise value of the absolute input device (in pixels)
  42     $ref: /schemas/types.yaml#/definitions/uint32
  43
  44   touchscreen-fuzz-y:
  45     description: vertical noise value of the absolute input device (in pixels)
  46     $ref: /schemas/types.yaml#/definitions/uint32
  47
  48   touchscreen-fuzz-pressure:
  49     description: pressure noise value of the absolute input device (arbitrary range
  50                  dependent on the controller)
  51     $ref: /schemas/types.yaml#/definitions/uint32
  52
  53   touchscreen-average-samples:
  54     description: Number of data samples which are averaged for each read (valid values
  55                  dependent on the controller)
  56     $ref: /schemas/types.yaml#/definitions/uint32
  57
  58   touchscreen-inverted-x:
  59     description: X axis is inverted
  60     type: boolean
  61
  62   touchscreen-inverted-y:
  63     description: Y axis is inverted
  64     type: boolean
  65
  66   touchscreen-swapped-x-y:
  67     description: X and Y axis are swapped
  68                  Swapping is done after inverting the axis
  69     type: boolean
  70
  71   touchscreen-x-mm:
  72     description: horizontal length in mm of the touchscreen
  73     $ref: /schemas/types.yaml#/definitions/uint32
  74
  75   touchscreen-y-mm:
  76     description: vertical length in mm of the touchscreen
  77     $ref: /schemas/types.yaml#/definitions/uint32
  78
  79 dependencies:
  80   touchscreen-size-x: [ touchscreen-size-y ]
  81   touchscreen-size-y: [ touchscreen-size-x ]
  82   touchscreen-x-mm: [ touchscreen-y-mm ]
  83   touchscreen-y-mm: [ touchscreen-x-mm ]