Overlay for the HAT: /dts-v1/; /plugin/; / { compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; fragment@0 { target = <&spi0>; __overlay__ { cs-gpios = <0>, <0>; pinctrl-names = "default"; pinctrl-0 = <&spi_pins>; }; }; fragment@1 { target = <&gpio>; __overlay__ { spi_pins: spi_pins { brcm,pins = <9 10 11>; brcm,function = <4>; /* alt0 */ brcm,pull = <0>; /* no pull */ }; }; }; fragment@2 { target = <&leds>; __overlay__ { pinctrl-names = "default"; pinctrl-0 = <&dpi16m3_pins>; }; }; fragment@3 { target = <&gpio>; __overlay__ { dpi16m3_pins: dpi16m3_pins { brcm,pins = <0 1 2 3 4 5 6 7 8 12 13 14 15 16 17 20 21 22 23 24>; brcm,function = <6>; /* alt2 */ brcm,pull = <0>; /* no pull */ }; }; }; };