Files
tactility/Drivers/xpt2046-softspi-module/bindings/xptek,xpt2046-softspi.yaml
2026-07-14 20:26:57 +02:00

53 lines
1.6 KiB
YAML

description: >
XPT2046 resistive touch controller driven over bit-banged (software) SPI on plain GPIO
pins, for boards where no hardware SPI peripheral is available for touch (e.g. both
SPI2_HOST and SPI3_HOST are already claimed by the display and SD card).
compatible: "xptek,xpt2046-softspi"
properties:
pin-mosi:
type: phandles
required: true
description: MOSI (controller-out, peripheral-in) GPIO pin
pin-miso:
type: phandles
required: true
description: MISO (controller-in, peripheral-out) GPIO pin
pin-sck:
type: phandles
required: true
description: Clock GPIO pin
pin-cs:
type: phandles
required: true
description: Chip-select GPIO pin
x-max:
type: int
required: true
description: Maximum X coordinate reported by the controller (typically the panel's horizontal resolution)
y-max:
type: int
required: true
description: Maximum Y coordinate reported by the controller (typically the panel's vertical resolution)
swap-xy:
type: boolean
default: false
description: Swap the X and Y axes
mirror-x:
type: boolean
default: false
description: Mirror the X axis
mirror-y:
type: boolean
default: false
description: Mirror the Y axis
power-supply:
type: boolean
default: false
description: Expose a power-supply device that reports battery voltage/capacity read from the XPT2046's v-bat input
power-supply-reference-voltage-mv:
type: int
default: 4200
description: Battery voltage (in mV) considered 100% capacity, used to compute POWER_SUPPLY_PROP_CAPACITY