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

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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: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240819142434.311760-1-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Frank Li 2024-08-19 10:24:29 -04:00 committed by Dmitry Torokhov
parent 4e12e55093
commit ed7687c75f
2 changed files with 77 additions and 34 deletions
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34
Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
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@ -1,34 +0,0 @@
* 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>;
};

77
Documentation/devicetree/bindings/input/touchscreen/toradex,vf50-touchscreen.yaml Normal file
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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/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>;
};