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dt-bindings: input: touchscreen: st,stmfts: convert to dtschema

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Convert the ST-Microelectronics FingerTip touchscreen controller
bindings to DT schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230127202040.196411-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Krzysztof Kozlowski 2023-02-03 16:59:58 -08:00 committed by Dmitry Torokhov
parent 0424931431
commit d94962401c
2 changed files with 72 additions and 41 deletions
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41
Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt
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* ST-Microelectronics FingerTip touchscreen controller
The ST-Microelectronics FingerTip device provides a basic touchscreen
functionality. Along with it the user can enable the touchkey which can work as
a basic HOME and BACK key for phones.
The driver supports also hovering as an absolute single touch event with x, y, z
coordinates.
Required properties:
- compatible : must be "st,stmfts"
- reg : I2C slave address, (e.g. 0x49)
- interrupts : interrupt specification
- avdd-supply : analogic power supply
- vdd-supply : power supply
- touchscreen-size-x : see touchscreen.txt
- touchscreen-size-y : see touchscreen.txt
Optional properties:
- touch-key-connected : specifies whether the touchkey feature is connected
- ledvdd-supply : power supply to the touch key leds
Example:
i2c@00000000 {
/* ... */
touchscreen@49 {
compatible = "st,stmfts";
reg = <0x49>;
interrupt-parent = <&gpa1>;
interrupts = <1 IRQ_TYPE_NONE>;
touchscreen-size-x = <1599>;
touchscreen-size-y = <2559>;
touch-key-connected;
avdd-supply = <&ldo30_reg>;
vdd-supply = <&ldo31_reg>;
ledvdd-supply = <&ldo33_reg>;
};
};

72
Documentation/devicetree/bindings/input/touchscreen/st,stmfts.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/st,stmfts.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ST-Microelectronics FingerTip touchscreen controller
maintainers:
- Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
description:
The ST-Microelectronics FingerTip device provides a basic touchscreen
functionality. Along with it the user can enable the touchkey which can work
as a basic HOME and BACK key for phones.
allOf:
- $ref: touchscreen.yaml#
properties:
compatible:
const: st,stmfts
reg:
maxItems: 1
avdd-supply:
description: Analogic power supply
interrupts:
maxItems: 1
ledvdd-supply:
description: Power supply to the touch key leds
touch-key-connected:
type: boolean
description: The touchkey feature is connected
vdd-supply:
description: Power supply
required:
- compatible
- reg
- avdd-supply
- interrupts
- vdd-supply
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
touchscreen@49 {
compatible = "st,stmfts";
reg = <0x49>;
interrupt-parent = <&gpa1>;
interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
touchscreen-size-x = <1599>;
touchscreen-size-y = <2559>;
touch-key-connected;
avdd-supply = <&ldo30_reg>;
vdd-supply = <&ldo31_reg>;
ledvdd-supply = <&ldo33_reg>;
};
};