Hi Andrew, I added these entries into armada-xp-gp.dtb gpio_rtm { compatible = "gpio-rtm"; #address-cells = <1>; #size-cells = <0>; pinctrl-0 = <&keys_pin>; pinctrl-names = "default";
rtm@57 { label = "RTM JACKINOUT"; gpios = <&gpio1 26 GPIO_ACTIVE_LOW>; /* GPIO 57 */ }; }; So I understand the leaf nodes are specific purpose of GPIOs(input:keyboard,mouse,touchpad etc). 1)For the board I am working needs different implementation for GPIO 57 unlike input devices drivers driving GPIOs. 2)To implement the functionality I need to write driver specific to my board which will implement event specific to requirements. I hope I am going right here, can you name a simple driver(kernel source) where it would make my driver development easy. Thanks & Regards Raghu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/