78 lines
1.9 KiB
YAML
78 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/touchscreen/toradex,vf50-touchscreen.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Toradex Colibri VF50 Touchscreen
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maintainers:
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- Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- Sanchayan Maity <maitysanchayan@gmail.com>
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properties:
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compatible:
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const: toradex,vf50-touchscreen
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interrupts:
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maxItems: 1
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io-channels:
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maxItems: 4
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description:
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adc channels being used by the Colibri VF50 module
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IIO ADC for Y-, X-, Y+, X+ connections
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xp-gpios:
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description: FET gate driver for input of X+
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xm-gpios:
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description: FET gate driver for input of X-
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yp-gpios:
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description: FET gate driver for input of Y+
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ym-gpios:
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description: FET gate driver for input of Y-
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vf50-ts-min-pressure:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 50
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maximum: 2000
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description: pressure level at which to stop measuring X/Y values
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required:
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- compatible
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- io-channels
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- xp-gpios
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- xm-gpios
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- yp-gpios
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- ym-gpios
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- interrupts
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- vf50-ts-min-pressure
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allOf:
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- $ref: touchscreen.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/gpio/gpio.h>
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touchscreen {
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compatible = "toradex,vf50-touchscreen";
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interrupt-parent = <&gpio0>;
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interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
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io-channels = <&adc1 0>, <&adc0 0>, <&adc0 1>, <&adc1 2>;
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xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
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xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
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yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
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ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
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pinctrl-names = "idle", "default";
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pinctrl-0 = <&pinctrl_touchctrl_idle>, <&pinctrl_touchctrl_gpios>;
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pinctrl-1 = <&pinctrl_touchctrl_default>, <&pinctrl_touchctrl_gpios>;
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vf50-ts-min-pressure = <200>;
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};
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