LPC18XX_GPIO_PINS_PER_PORT 753 drivers/pinctrl/pinctrl-lpc18xx.c gpio_port = gpio / LPC18XX_GPIO_PINS_PER_PORT; LPC18XX_GPIO_PINS_PER_PORT 754 drivers/pinctrl/pinctrl-lpc18xx.c gpio_pin = gpio % LPC18XX_GPIO_PINS_PER_PORT;