Commit 6c19974d authored by Linus Walleij's avatar Linus Walleij Committed by Bartosz Golaszewski
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dt-bindings: gpio: Convert STMPE GPIO to YAML schema 



This rewrites the STMPE GPIO bindings to a YAML schema.

We add the properties that are used in the widely used
STMPE GPIO device nodes found in the wild, most notably
interrupt support, so interrupt-cells and
interrupt-controller is now part of the bindings.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 1c23553a

Documentation/devicetree/bindings/gpio/gpio-stmpe.txt

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STMPE gpio

----------



Required properties:

 - compatible: "st,stmpe-gpio"



Optional properties:

 - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable

   due to different usage (e.g. touch, keypad)



Node should be child node of stmpe node to which it belongs.



Example:

	stmpe_gpio {

		compatible = "st,stmpe-gpio";

		st,norequest-mask = <0x20>;	//gpio 5 can't be used

	};

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

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: STMicroelectonics Port Expander (STMPE) GPIO Block



description:

  STMicroelectronics Port Expander (STMPE) is a series of slow

  bus controllers for various expanded peripherals such as GPIO, keypad,

  touchscreen, ADC, PWM or rotator. It can contain one or several different

  peripherals connected to SPI or I2C. These bindings pertain to the

  GPIO portions of these expanders.



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



properties:

  compatible:

    const: st,stmpe-gpio



  "#gpio-cells":

    const: 2



  "#interrupt-cells":

    const: 2



  gpio-controller: true



  interrupt-controller: true



  st,norequest-mask:

    description:

      A bitmask of GPIO lines that cannot be requested because for

      for example not being connected to anything on the system

    $ref: /schemas/types.yaml#/definitions/uint32



patternProperties:

  "^.+-hog(-[0-9]+)?$":

    type: object



    required:

      - gpio-hog



additionalProperties: false



required:

  - compatible

  - "#gpio-cells"

  - "#interrupt-cells"

  - gpio-controller

  - interrupt-controller