/dts-v1/; /plugin/; / { compatible = "brcm,bcm2835"; fragment@0 { target = <&spi0>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; sc16is752: sc16is752@0 { compatible = "nxp,sc16is752"; reg = <0>; /* CE0 */ clocks = <&sc16is752_clk>; interrupt-parent = <&gpio>; interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */ #gpio-controller; #gpio-cells = <2>; spi-max-frequency = <4000000>; sc16is752_clk: sc16is752_clk { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <14745600>; }; }; }; }; fragment@1 { target = <&spidev0>; __overlay__ { status = "disabled"; }; }; __overrides__ { int_pin = <&sc16is752>,"interrupts:0"; xtal = <&sc16is752_clk>, "clock-frequency:0"; }; };