Hi all,
I am a newbie in device driver stuffs. I want to connect LEDs to the gpio pins of imx6qdl and use it for debugging purpose.
For that purpose I have modified the device tree as follows:
leds {
pinctrl-names ="default";
pinctrl-0 =<&pinctrl_leds>;
compatible = "gpio-leds";
debug-led-1 {
label ="Debug-led1";
gpios = <&gpio1 1>;
linux,default-trigger ="heartbeat";
linux,default-state ="on";
};
debug-led-2 {
label ="Debug-led2";
gpios= <&gpio1 2>;
linux,default-trigger ="heartbeat";
linux,default-state ="on";
};
};
the pinctrl settings are:-
pinctrl_leds: ledsgrp {
fsl,pins = <
MX6QDL_PAD_GPIO_1__GPIO1_IO01 0x0b0b0 /*Debug-led-1*/
MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x0b0b0 /*Debug-led-2 */
>
}
Now I want to know what else I need to do for configuring the gpio pins?
Do I need to modify the board setup code?
Do I need to add/modify something in device driver (leds-gpio.c)code? (eg: platform_device or platform_data structure or the device tree will take care of it?)
Please help !!!
Thanks,
Anamika
