/* Disable the UART. 
This routine disables the given UART. */
static void disable(const struct device *dev)
/* Disable the UART. 
This routine disables the given UART. */
static void disable(const struct device *dev)
{
	const struct uart_stellaris_config *config = dev->config;
	config->uart->ctl &= ~UARTCTL_UARTEN;
	while (config->uart->fr & UARTFR_BUSY) {
	}
	config->uart->lcrh &= ~UARTLCRH_FEN;
}