mctrl_gpio_init
struct mctrl_gpios *gpios = mctrl_gpio_init(&uart->port, 0);
up->gpios = mctrl_gpio_init(port, 0);
atmel_port->gpios = mctrl_gpio_init(&atmel_port->uart, 0);
sport->gpios = mctrl_gpio_init(&sport->port, 0);
EXPORT_SYMBOL_GPL(mctrl_gpio_init);
struct mctrl_gpios *mctrl_gpio_init(struct uart_port *port, unsigned int idx);
sciport->gpios = mctrl_gpio_init(&sciport->port, 0);
stm32port->gpios = mctrl_gpio_init(&stm32port->port, 0);