gpio_led_register_device
leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
gpio_led_register_device(-1, &gpio_leds_pdata);
gpio_led_register_device(-1, &assabet_leds_pdata);
gpio_led_register_device(-1, &bcm47xx_leds_pdata);
gpio_led_register_device(0, &bcm47xx_leds_pdata_extra);
struct platform_device *gpio_led_register_device(