Commit a811ecf8 authored by Linus Walleij's avatar Linus Walleij Committed by Dmitry Torokhov
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Input: mms114 - convert bindings to YAML and extend 



This converts the Melfas MMS114 bindings and extend like this:

- Require nodename touchscreen@ (this seems to be the case for
  all in-tree DTS files)
- Add the mms134s and mms136 compatibles
- Add the avdd and vdd power supplies
- Define the I2C clock frequency property

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210330201233.2360006-1-linus.walleij@linaro.org


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 42370681

Documentation/devicetree/bindings/input/touchscreen/melfas,mms114.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/input/touchscreen/melfas,mms114.yaml#

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



title: Melfas MMS114 family touchscreen controller bindings



maintainers:

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



allOf:

  - $ref: touchscreen.yaml#



properties:

  $nodename:

    pattern: "^touchscreen(@.*)?$"



  compatible:

    items:

      - enum:

          - melfas,mms114

          - melfas,mms134s

          - melfas,mms136

          - melfas,mms152

          - melfas,mms345l



  reg:

    description: I2C address



  clock-frequency:

    description: I2C client clock frequency, defined for host

    minimum: 100000

    maximum: 400000



  interrupts:

    maxItems: 1



  avdd-supply:

    description: Analog power supply regulator on AVDD pin



  vdd-supply:

    description: Digital power supply regulator on VDD pin



  touchscreen-size-x: true

  touchscreen-size-y: true

  touchscreen-fuzz-x: true

  touchscreen-fuzz-y: true

  touchscreen-fuzz-pressure: true

  touchscreen-inverted-x: true

  touchscreen-inverted-y: true

  touchscreen-swapped-x-y: true

  touchscreen-max-pressure: true



additionalProperties: false



required:

  - compatible

  - reg

  - interrupts

  - touchscreen-size-x

  - touchscreen-size-y



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      touchscreen@48 {

        compatible = "melfas,mms114";

        reg = <0x48>;

        interrupt-parent = <&gpio>;

        interrupts = <39 IRQ_TYPE_EDGE_FALLING>;

        avdd-supply = <&ldo1_reg>;

        vdd-supply = <&ldo2_reg>;

        touchscreen-size-x = <720>;

        touchscreen-size-y = <1280>;

        touchscreen-fuzz-x = <10>;

        touchscreen-fuzz-y = <10>;

        touchscreen-fuzz-pressure = <10>;

        touchscreen-inverted-x;

        touchscreen-inverted-y;

      };

    };



...

Documentation/devicetree/bindings/input/touchscreen/mms114.txt

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* MELFAS MMS114/MMS152/MMS345L touchscreen controller



Required properties:

- compatible: should be one of:

	- "melfas,mms114"

	- "melfas,mms152"

	- "melfas,mms345l"

- reg: I2C address of the chip

- interrupts: interrupt to which the chip is connected

- touchscreen-size-x: See [1]

- touchscreen-size-y: See [1]



Optional properties:

- touchscreen-fuzz-x: See [1]

- touchscreen-fuzz-y: See [1]

- touchscreen-fuzz-pressure: See [1]

- touchscreen-inverted-x: See [1]

- touchscreen-inverted-y: See [1]

- touchscreen-swapped-x-y: See [1]



[1]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt



Example:



	i2c@00000000 {

		/* ... */



		touchscreen@48 {

			compatible = "melfas,mms114";

			reg = <0x48>;

			interrupts = <39 0>;

			touchscreen-size-x = <720>;

			touchscreen-size-y = <1280>;

			touchscreen-fuzz-x = <10>;

			touchscreen-fuzz-y = <10>;

			touchscreen-fuzz-pressure = <10>;

			touchscreen-inverted-x;

			touchscreen-inverted-y;

		};



		/* ... */

	};