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linux/arch/arm/boot/dts/overlays/ilitek-ts-i2c-overlay.dts
2025-12-04 11:37:01 +00:00

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// Device tree overlay for I2C connected Ilitek multiple touch controller
/dts-v1/;
/plugin/;
#include <dt-bindings/interrupt-controller/irq.h>
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target = <&gpio>;
__overlay__ {
ili2130_pins: ili2130_pins {
brcm,pins = <4>; // interrupt
brcm,function = <0>; // in
brcm,pull = <2>; // pull-up
};
};
};
frag1: fragment@1 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
ili2130: ili2130@41 {
compatible = "ilitek,ili2130";
reg = <0x41>;
pinctrl-names = "default";
pinctrl-0 = <&ili2130_pins>;
interrupt-parent = <&gpio>;
interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
};
};
};
fragment@2 {
target = <&ili2130>;
__overlay__ {
touchscreen-inverted-x;
};
};
fragment@3 {
target = <&ili2130>;
__overlay__ {
touchscreen-inverted-y;
};
};
__overrides__ {
interrupt = <&ili2130_pins>,"brcm,pins:0",
<&ili2130>,"interrupts:0";
i2c-path = <&frag1>, "target?=0",
<&frag1>, "target-path";
invx = <0>, "-2";
invy = <0>, "-3";
swapxy = <&ili2130>,"touchscreen-swapped-x-y?";
};
};