diff options
Diffstat (limited to 'dts/Bindings/input')
| -rw-r--r-- | dts/Bindings/input/adc-joystick.yaml | 121 | ||||
| -rw-r--r-- | dts/Bindings/input/fsl,mpr121-touchkey.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/input/input.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/input/matrix-keymap.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/input/touchscreen/touchscreen.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/input/touchscreen/zinitix.txt | 40 |
6 files changed, 169 insertions, 0 deletions
diff --git a/dts/Bindings/input/adc-joystick.yaml b/dts/Bindings/input/adc-joystick.yaml new file mode 100644 index 0000000000..054406bbd2 --- /dev/null +++ b/dts/Bindings/input/adc-joystick.yaml @@ -0,0 +1,121 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019-2020 Artur Rojek +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/input/adc-joystick.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: ADC attached joystick + +maintainers: + - Artur Rojek <contact@artur-rojek.eu> + +description: > + Bindings for joystick devices connected to ADC controllers supporting + the Industrial I/O subsystem. + +properties: + compatible: + const: adc-joystick + + io-channels: + minItems: 1 + maxItems: 1024 + description: > + List of phandle and IIO specifier pairs. + Each pair defines one ADC channel to which a joystick axis is connected. + See Documentation/devicetree/bindings/iio/iio-bindings.txt for details. + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +required: + - compatible + - io-channels + - '#address-cells' + - '#size-cells' + +additionalProperties: false + +patternProperties: + "^axis@[0-9a-f]+$": + type: object + description: > + Represents a joystick axis bound to the given ADC channel. + For each entry in the io-channels list, one axis subnode with a matching + reg property must be specified. + + properties: + reg: + minimum: 0 + maximum: 1023 + description: Index of an io-channels list entry bound to this axis. + + linux,code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: EV_ABS specific event code generated by the axis. + + abs-range: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + - items: + - description: minimum value + - description: maximum value + description: > + Minimum and maximum values produced by the axis. + For an ABS_X axis this will be the left-most and right-most + inclination of the joystick. If min > max, it is left to userspace to + treat the axis as inverted. + This property is interpreted as two signed 32 bit values. + + abs-fuzz: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Amount of noise in the input value. + Omitting this property indicates the axis is precise. + + abs-flat: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Axial "deadzone", or area around the center position, where the axis + is considered to be at rest. + Omitting this property indicates the axis always returns to exactly + the center position. + + required: + - reg + - linux,code + - abs-range + + additionalProperties: false + +examples: + - | + #include <dt-bindings/iio/adc/ingenic,adc.h> + #include <dt-bindings/input/input.h> + + joystick: adc-joystick { + compatible = "adc-joystick"; + io-channels = <&adc INGENIC_ADC_TOUCH_XP>, + <&adc INGENIC_ADC_TOUCH_YP>; + #address-cells = <1>; + #size-cells = <0>; + + axis@0 { + reg = <0>; + linux,code = <ABS_X>; + abs-range = <3300 0>; + abs-fuzz = <4>; + abs-flat = <200>; + }; + axis@1 { + reg = <1>; + linux,code = <ABS_Y>; + abs-range = <0 3300>; + abs-fuzz = <4>; + abs-flat = <200>; + }; + }; diff --git a/dts/Bindings/input/fsl,mpr121-touchkey.yaml b/dts/Bindings/input/fsl,mpr121-touchkey.yaml index 5b37be0be4..378a85c09d 100644 --- a/dts/Bindings/input/fsl,mpr121-touchkey.yaml +++ b/dts/Bindings/input/fsl,mpr121-touchkey.yaml @@ -48,6 +48,8 @@ required: - vdd-supply - linux,keycodes +unevaluatedProperties: false + examples: - | // Example with interrupts diff --git a/dts/Bindings/input/input.yaml b/dts/Bindings/input/input.yaml index 8edcb3c312..ab407f266b 100644 --- a/dts/Bindings/input/input.yaml +++ b/dts/Bindings/input/input.yaml @@ -33,3 +33,5 @@ properties: power off automatically. Device with key pressed shutdown feature can specify this property. $ref: /schemas/types.yaml#/definitions/uint32 + +additionalProperties: true diff --git a/dts/Bindings/input/matrix-keymap.yaml b/dts/Bindings/input/matrix-keymap.yaml index c3bf091567..6699d5e32d 100644 --- a/dts/Bindings/input/matrix-keymap.yaml +++ b/dts/Bindings/input/matrix-keymap.yaml @@ -35,6 +35,8 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 description: Number of column lines connected to the keypad controller. +additionalProperties: true + examples: - | keypad { diff --git a/dts/Bindings/input/touchscreen/touchscreen.yaml b/dts/Bindings/input/touchscreen/touchscreen.yaml index 36dc7b56a4..a771a15f05 100644 --- a/dts/Bindings/input/touchscreen/touchscreen.yaml +++ b/dts/Bindings/input/touchscreen/touchscreen.yaml @@ -81,3 +81,5 @@ dependencies: touchscreen-size-y: [ touchscreen-size-x ] touchscreen-x-mm: [ touchscreen-y-mm ] touchscreen-y-mm: [ touchscreen-x-mm ] + +additionalProperties: true diff --git a/dts/Bindings/input/touchscreen/zinitix.txt b/dts/Bindings/input/touchscreen/zinitix.txt new file mode 100644 index 0000000000..446efb9f5f --- /dev/null +++ b/dts/Bindings/input/touchscreen/zinitix.txt @@ -0,0 +1,40 @@ +Device tree bindings for Zinitx BT541 touchscreen controller + +Required properties: + + - compatible : Should be "zinitix,bt541" + - reg : I2C address of the chip. Should be 0x20 + - interrupts : Interrupt to which the chip is connected + +Optional properties: + + - vdd-supply : Analog power supply regulator on VCCA pin + - vddo-supply : Digital power supply regulator on VDD pin + - zinitix,mode : Mode of reporting touch points. Some modes may not work + with a particular ts firmware for unknown reasons. Available + modes are 1 and 2. Mode 2 is the default and preferred. + +The touchscreen-* properties are documented in touchscreen.txt in this +directory. + +Example: + + i2c@00000000 { + /* ... */ + + bt541@20 { + compatible = "zinitix,bt541"; + reg = <0x20>; + interrupt-parent = <&msmgpio>; + interrupts = <13 IRQ_TYPE_EDGE_FALLING>; + pinctrl-names = "default"; + pinctrl-0 = <&tsp_default>; + vdd-supply = <®_vdd_tsp>; + vddo-supply = <&pm8916_l6>; + touchscreen-size-x = <540>; + touchscreen-size-y = <960>; + zinitix,mode = <2>; + }; + + /* ... */ + }; |