TI/National Semiconductor LP3943 GPIO controller Required properties: - compatible: "ti,lp3943-gpio" - gpio-controller: Marks the device node as a GPIO controller. - #gpio-cells: Should be 2. See gpio.txt in this directory for a description of the cells format. Example: Simple LED controls with LP3943 GPIO controller &i2c4 { lp3943@60 { compatible = "ti,lp3943"; reg = <0x60>; gpioex: gpio { compatible = "ti,lp3943-gpio"; gpio-controller; #gpio-cells = <2>; }; }; }; leds { compatible = "gpio-leds"; indicator1 { label = "indi1"; gpios = <&gpioex 9 GPIO_ACTIVE_LOW>; }; indicator2 { label = "indi2"; gpios = <&gpioex 10 GPIO_ACTIVE_LOW>; default-state = "off"; }; };