dt-bindings: touchscreen: Convert edt-ft5x06 to json-schema
Convert the EDT-FT5x06 to DT schema using json-schema. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200207084657.31195-1-benjamin.gaignard@st.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Benjamin Gaignard
Dmitry Torokhov
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FocalTech EDT-FT5x06 Polytouch driver
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=====================================
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There are 5 variants of the chip for various touch panel sizes
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FT5206GE1 2.8" .. 3.8"
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FT5306DE4 4.3" .. 7"
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FT5406EE8 7" .. 8.9"
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FT5506EEG 7" .. 8.9"
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FT5726NEI 5.7” .. 11.6"
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The software interface is identical for all those chips, so that
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currently there is no need for the driver to distinguish between the
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different chips. Nevertheless distinct compatible strings are used so
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that a distinction can be added if necessary without changing the DT
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bindings.
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Required properties:
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- compatible: "edt,edt-ft5206"
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or: "edt,edt-ft5306"
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or: "edt,edt-ft5406"
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or: "edt,edt-ft5506"
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or: "evervision,ev-ft5726"
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or: "focaltech,ft6236"
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- reg: I2C slave address of the chip (0x38)
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- interrupts: interrupt specification for the touchdetect
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interrupt
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Optional properties:
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- reset-gpios: GPIO specification for the RESET input
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- wake-gpios: GPIO specification for the WAKE input
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- vcc-supply: Regulator that supplies the touchscreen
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- pinctrl-names: should be "default"
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- pinctrl-0: a phandle pointing to the pin settings for the
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control gpios
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- wakeup-source: If present the device will act as wakeup-source
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- threshold: allows setting the "click"-threshold in the range
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from 0 to 80.
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- gain: allows setting the sensitivity in the range from 0 to
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31. Note that lower values indicate higher
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sensitivity.
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- offset: allows setting the edge compensation in the range from
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0 to 31.
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- offset-x: Same as offset, but applies only to the horizontal position.
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Range from 0 to 80, only supported by evervision,ev-ft5726
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devices.
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- offset-y: Same as offset, but applies only to the vertical position.
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Range from 0 to 80, only supported by evervision,ev-ft5726
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devices.
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- touchscreen-size-x : See touchscreen.txt
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- touchscreen-size-y : See touchscreen.txt
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- touchscreen-fuzz-x : See touchscreen.txt
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- touchscreen-fuzz-y : See touchscreen.txt
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- touchscreen-inverted-x : See touchscreen.txt
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- touchscreen-inverted-y : See touchscreen.txt
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- touchscreen-swapped-x-y : See touchscreen.txt
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Example:
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polytouch: edt-ft5x06@38 {
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compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
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reg = <0x38>;
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pinctrl-names = "default";
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pinctrl-0 = <&edt_ft5x06_pins>;
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interrupt-parent = <&gpio2>;
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
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reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
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wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
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};
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@ -0,0 +1,125 @@
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/touchscreen/edt-ft5x06.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: FocalTech EDT-FT5x06 Polytouch Bindings
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description: |
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There are 5 variants of the chip for various touch panel sizes
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FT5206GE1 2.8" .. 3.8"
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FT5306DE4 4.3" .. 7"
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FT5406EE8 7" .. 8.9"
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FT5506EEG 7" .. 8.9"
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FT5726NEI 5.7” .. 11.6"
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maintainers:
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- Dmitry Torokhov <dmitry.torokhov@gmail.com>
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allOf:
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- $ref: touchscreen.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- evervision,ev-ft5726
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then:
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properties:
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offset-x: true
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offset-y: true
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properties:
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compatible:
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enum:
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- edt,edt-ft5206
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- edt,edt-ft5306
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- edt,edt-ft5406
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- edt,edt-ft5506
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- evervision,ev-ft5726
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- focaltech,ft6236
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reg:
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const: 0x38
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interrupts:
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maxItems: 1
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reset-gpios:
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maxItems: 1
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wake-gpios:
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maxItems: 1
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wakeup-source: true
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vcc-supply:
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maxItems: 1
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gain:
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description: Allows setting the sensitivity in the range from 0 to 31.
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Note that lower values indicate higher sensitivity.
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- minimum: 0
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- maximum: 31
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offset:
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description: Allows setting the edge compensation in the range from 0 to 31.
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- minimum: 0
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- maximum: 31
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offset-x:
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description: Same as offset, but applies only to the horizontal position.
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Range from 0 to 80, only supported by evervision,ev-ft5726 devices.
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- minimum: 0
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- maximum: 80
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offset-y:
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description: Same as offset, but applies only to the vertical position.
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Range from 0 to 80, only supported by evervision,ev-ft5726 devices.
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- minimum: 0
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- maximum: 80
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touchscreen-size-x: true
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touchscreen-size-y: true
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touchscreen-fuzz-x: true
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touchscreen-fuzz-y: true
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touchscreen-inverted-x: true
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touchscreen-inverted-y: true
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touchscreen-swapped-x-y: true
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interrupt-controller: true
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additionalProperties: false
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required:
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- compatible
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- reg
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- interrupts
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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i2c@00000000 {
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#address-cells = <1>;
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#size-cells = <0>;
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edt-ft5x06@38 {
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compatible = "edt,edt-ft5406";
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reg = <0x38>;
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interrupt-parent = <&gpio2>;
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
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reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
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wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
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};
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};
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...
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