/ { custom_led0: custom_led0 { compatible = "custom-led"; custom-gpios = <&gpioe 13 GPIO_ACTIVE_HIGH>; my-delay-ms = <1000>; /* Optional, equals 500 by default */ }; aliases { myled = &custom_led0; }; }; &clk_hse { clock-frequency = ; }; &pll { div-m = <25>; mul-n = <336>; div-p = <2>; div-q = <7>; };