On Tue, Apr 12, 2022 at 1:56 PM Andrei Lalaev <andrei.lalaev@xxxxxxxxx> wrote: > Could you please help me realize how you interpreted the elements of > "gpio-reserved-ranges"? Did you mean "start size" or "start end"? It's related to ngpios. See Documentation/devicetree/bindings/gpio/gpio.txt: 2) gpio-controller nodes Yours, Linus Walleij