/* * Device Tree overlay for Adafruit Mini PiTFT 1.3" and 1.5" 240x240 Display * */ /dts-v1/; /plugin/; / { compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; fragment@0 { target = <&spi0>; __overlay__ { status = "okay"; spidev@0{ status = "disabled"; }; spidev@1{ status = "disabled"; }; }; }; fragment@1 { target = <&gpio>; __overlay__ { pitft_pins: pitft_pins { brcm,pins = <25>; brcm,function = <1>; /* out */ brcm,pull = <0>; /* none */ }; }; }; fragment@2 { target = <&spi0>; __overlay__ { /* needed to avoid dtc warning */ #address-cells = <1>; #size-cells = <0>; pitft: pitft@0{ compatible = "sitronix,st7789v"; reg = <0>; pinctrl-names = "default"; pinctrl-0 = <&pitft_pins>; spi-max-frequency = <32000000>; rotate = <0>; width = <240>; height = <240>; buswidth = <8>; dc-gpios = <&gpio 25 0>; led-gpios = <&gpio 26 0>; debug = <0>; }; }; }; __overrides__ { speed = <&pitft>,"spi-max-frequency:0"; rotate = <&pitft>,"rotate:0"; width = <&pitft>,"width:0"; height = <&pitft>,"height:0"; fps = <&pitft>,"fps:0"; debug = <&pitft>,"debug:0"; }; };