Documentation/devicetree/bindings/input/touchscreen/melfas,mms114.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/melfas,mms114.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Melfas MMS114 family touchscreen controller bindings
   8
   9 maintainers:
  10   - Linus Walleij <linus.walleij@linaro.org>
  11
  12 allOf:
  13   - $ref: touchscreen.yaml#
  14
  15 properties:
  16   $nodename:
  17     pattern: "^touchscreen(@.*)?$"
  18
  19   compatible:
  20     items:
  21       - enum:
  22           - melfas,mms114
  23           - melfas,mms134s
  24           - melfas,mms136
  25           - melfas,mms152
  26           - melfas,mms345l
  27
  28   reg:
  29     description: I2C address
  30
  31   clock-frequency:
  32     description: I2C client clock frequency, defined for host
  33     minimum: 100000
  34     maximum: 400000
  35
  36   interrupts:
  37     maxItems: 1
  38
  39   avdd-supply:
  40     description: Analog power supply regulator on AVDD pin
  41
  42   vdd-supply:
  43     description: Digital power supply regulator on VDD pin
  44
  45   touchscreen-size-x: true
  46   touchscreen-size-y: true
  47   touchscreen-fuzz-x: true
  48   touchscreen-fuzz-y: true
  49   touchscreen-fuzz-pressure: true
  50   touchscreen-inverted-x: true
  51   touchscreen-inverted-y: true
  52   touchscreen-swapped-x-y: true
  53   touchscreen-max-pressure: true
  54
  55 additionalProperties: false
  56
  57 required:
  58   - compatible
  59   - reg
  60   - interrupts
  61   - touchscreen-size-x
  62   - touchscreen-size-y
  63
  64 examples:
  65   - |
  66     #include <dt-bindings/interrupt-controller/irq.h>
  67     i2c {
  68       #address-cells = <1>;
  69       #size-cells = <0>;
  70       touchscreen@48 {
  71         compatible = "melfas,mms114";
  72         reg = <0x48>;
  73         interrupt-parent = <&gpio>;
  74         interrupts = <39 IRQ_TYPE_EDGE_FALLING>;
  75         avdd-supply = <&ldo1_reg>;
  76         vdd-supply = <&ldo2_reg>;
  77         touchscreen-size-x = <720>;
  78         touchscreen-size-y = <1280>;
  79         touchscreen-fuzz-x = <10>;
  80         touchscreen-fuzz-y = <10>;
  81         touchscreen-fuzz-pressure = <10>;
  82         touchscreen-inverted-x;
  83         touchscreen-inverted-y;
  84       };
  85     };
  86
  87 ...