Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: STMicroelectonics Port Expander (STMPE) GPIO Block
   8
   9 description:
  10   STMicroelectronics Port Expander (STMPE) is a series of slow
  11   bus controllers for various expanded peripherals such as GPIO, keypad,
  12   touchscreen, ADC, PWM or rotator. It can contain one or several different
  13   peripherals connected to SPI or I2C. These bindings pertain to the
  14   GPIO portions of these expanders.
  15
  16 maintainers:
  17   - Linus Walleij <linus.walleij@linaro.org>
  18
  19 properties:
  20   compatible:
  21     const: st,stmpe-gpio
  22
  23   "#gpio-cells":
  24     const: 2
  25
  26   "#interrupt-cells":
  27     const: 2
  28
  29   gpio-controller: true
  30
  31   gpio-line-names:
  32     minItems: 1
  33     maxItems: 24
  34
  35   interrupt-controller: true
  36
  37   st,norequest-mask:
  38     description:
  39       A bitmask of GPIO lines that cannot be requested because for
  40       for example not being connected to anything on the system
  41     $ref: /schemas/types.yaml#/definitions/uint32
  42
  43 patternProperties:
  44   "^.+-hog(-[0-9]+)?$":
  45     type: object
  46
  47     required:
  48       - gpio-hog
  49
  50 additionalProperties: false
  51
  52 required:
  53   - compatible
  54   - "#gpio-cells"
  55   - "#interrupt-cells"
  56   - gpio-controller
  57   - interrupt-controller