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49 lines
1.1 KiB
Plaintext
49 lines
1.1 KiB
Plaintext
// Device tree overlay for I2C connected EETI EXC3000 multiple touch controller
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&gpio>;
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__overlay__ {
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exc3000_pins: exc3000_pins {
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brcm,pins = <4>; // interrupt
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brcm,function = <0>; // in
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brcm,pull = <2>; // pull-up
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};
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};
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};
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fragment@1 {
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target = <&i2c1>;
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__overlay__ {
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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exc3000: exc3000@2a {
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compatible = "eeti,exc3000";
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reg = <0x2a>;
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pinctrl-names = "default";
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pinctrl-0 = <&exc3000_pins>;
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interrupt-parent = <&gpio>;
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interrupts = <4 8>; // active low level-sensitive
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touchscreen-size-x = <4096>;
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touchscreen-size-y = <4096>;
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};
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};
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};
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__overrides__ {
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interrupt = <&exc3000_pins>,"brcm,pins:0",
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<&exc3000>,"interrupts:0";
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sizex = <&exc3000>,"touchscreen-size-x:0";
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sizey = <&exc3000>,"touchscreen-size-y:0";
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invx = <&exc3000>,"touchscreen-inverted-x?";
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invy = <&exc3000>,"touchscreen-inverted-y?";
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swapxy = <&exc3000>,"touchscreen-swapped-x-y?";
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};
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};
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