register_led_driver
int register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);
register_led_driver(DISPLAY_MODEL_OLD_ASP, LED_CMD_REG_NONE,
register_led_driver(DISPLAY_MODEL_LASI, LED_CMD_REG_NONE, datareg);
return register_led_driver(lcd_info.model, LCD_CMD_REG, LCD_DATA_REG);