Commit ed7687c7 authored by Frank Li's avatar Frank Li Committed by Dmitry Torokhov
Browse files

dt-bindings: input: touchscreen: convert colibri-vf50-ts.txt to yaml 



Convert binding doc colibri-vf50-ts.txt to yaml.
Additional change:
- add ref touchscreen.yaml.
- remove standard pinctrl properties.

Fix below warning:
arch/arm64/boot/dts/freescale/imx8qm-apalis-eval.dtb: /touchscreen:
  failed to match any schema with compatible: ['toradex,vf50-touchscreen']

Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240819142434.311760-1-Frank.Li@nxp.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 4e12e550

Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt

deleted100644 → 0
+0 −34
Original line number Diff line number Diff line 
* Toradex Colibri VF50 Touchscreen driver



Required Properties:

- compatible must be toradex,vf50-touchscreen

- io-channels: adc channels being used by the Colibri VF50 module

    IIO ADC for Y-, X-, Y+, X+ connections

- xp-gpios: FET gate driver for input of X+

- xm-gpios: FET gate driver for input of X-

- yp-gpios: FET gate driver for input of Y+

- ym-gpios: FET gate driver for input of Y-

- interrupts: pen irq interrupt for touch detection, signal from X plate

- pinctrl-names: "idle", "default"

- pinctrl-0: pinctrl node for pen/touch detection, pinctrl must provide

    pull-up resistor on X+, X-.

- pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux

- vf50-ts-min-pressure: pressure level at which to stop measuring X/Y values



Example:



	touchctrl: vf50_touchctrl {

		compatible = "toradex,vf50-touchscreen";

		io-channels = <&adc1 0>,<&adc0 0>,

				<&adc0 1>,<&adc1 2>;

		xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;

		xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;

		yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;

		ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;

		interrupt-parent = <&gpio0>;

		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;

		pinctrl-names = "idle","default";

		pinctrl-0 = <&pinctrl_touchctrl_idle>, <&pinctrl_touchctrl_gpios>;

		pinctrl-1 = <&pinctrl_touchctrl_default>, <&pinctrl_touchctrl_gpios>;

		vf50-ts-min-pressure = <200>;

	};

Documentation/devicetree/bindings/input/touchscreen/toradex,vf50-touchscreen.yaml

0 → 100644
+77 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/input/touchscreen/toradex,vf50-touchscreen.yaml#

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



title: Toradex Colibri VF50 Touchscreen



maintainers:

  - Dmitry Torokhov <dmitry.torokhov@gmail.com>

  - Sanchayan Maity <maitysanchayan@gmail.com>



properties:

  compatible:

    const: toradex,vf50-touchscreen



  interrupts:

    maxItems: 1



  io-channels:

    maxItems: 4

    description:

      adc channels being used by the Colibri VF50 module

      IIO ADC for Y-, X-, Y+, X+ connections



  xp-gpios:

    description: FET gate driver for input of X+



  xm-gpios:

    description: FET gate driver for input of X-



  yp-gpios:

    description: FET gate driver for input of Y+



  ym-gpios:

    description: FET gate driver for input of Y-



  vf50-ts-min-pressure:

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

    minimum: 50

    maximum: 2000

    description: pressure level at which to stop measuring X/Y values



required:

  - compatible

  - io-channels

  - xp-gpios

  - xm-gpios

  - yp-gpios

  - ym-gpios

  - interrupts

  - vf50-ts-min-pressure



allOf:

  - $ref: touchscreen.yaml#



unevaluatedProperties: false



examples:

  - |

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

    #include <dt-bindings/gpio/gpio.h>



    touchscreen {

        compatible = "toradex,vf50-touchscreen";

        interrupt-parent = <&gpio0>;

        interrupts = <8 IRQ_TYPE_LEVEL_LOW>;

        io-channels = <&adc1 0>, <&adc0 0>, <&adc0 1>, <&adc1 2>;

        xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;

        xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;

        yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;

        ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;

        pinctrl-names = "idle", "default";

        pinctrl-0 = <&pinctrl_touchctrl_idle>, <&pinctrl_touchctrl_gpios>;

        pinctrl-1 = <&pinctrl_touchctrl_default>, <&pinctrl_touchctrl_gpios>;

        vf50-ts-min-pressure = <200>;

    };