/* * Device Tree overlay for Adafruit PiTFT 2.8" capacitive touch screen * */ /dts-v1/; /plugin/; / { compatible = "brcm,bcm2835"; fragment@0 { target = <&spi0>; __overlay__ { status = "okay"; }; }; fragment@1 { target = <&spidev0>; __overlay__ { status = "disabled"; }; }; fragment@2 { target = <&gpio>; __overlay__ { pitft_pins: pitft_pins { brcm,pins = <24 25>; brcm,function = <0 1>; /* in out */ brcm,pull = <2 0>; /* pullup none */ }; }; }; fragment@3 { target = <&spi0>; __overlay__ { /* needed to avoid dtc warning */ #address-cells = <1>; #size-cells = <0>; pitft: pitft@0{ compatible = "ilitek,ili9340"; reg = <0>; pinctrl-names = "default"; pinctrl-0 = <&pitft_pins>; spi-max-frequency = <32000000>; rotate = <90>; fps = <25>; bgr; buswidth = <8>; dc-gpios = <&gpio 25 0>; debug = <0>; }; }; }; fragment@4 { target = <&i2c1>; __overlay__ { /* needed to avoid dtc warning */ #address-cells = <1>; #size-cells = <0>; ft6236: ft6236@38 { compatible = "focaltech,ft6236"; reg = <0x38>; interrupt-parent = <&gpio>; interrupts = <24 2>; touchscreen-size-x = <240>; touchscreen-size-y = <320>; }; }; }; __overrides__ { speed = <&pitft>,"spi-max-frequency:0"; rotate = <&pitft>,"rotate:0"; fps = <&pitft>,"fps:0"; debug = <&pitft>,"debug:0"; touch-sizex = <&ft6236>,"touchscreen-size-x?"; touch-sizey = <&ft6236>,"touchscreen-size-y?"; touch-invx = <&ft6236>,"touchscreen-inverted-x?"; touch-invy = <&ft6236>,"touchscreen-inverted-y?"; touch-swapxy = <&ft6236>,"touchscreen-swapped-x-y?"; }; };