UARTn_IF 246 drivers/tty/serial/efm32-uart.c u32 irqflag = efm32_uart_read32(efm_port, UARTn_IF); UARTn_IF 278 drivers/tty/serial/efm32-uart.c u32 irqflag = efm32_uart_read32(efm_port, UARTn_IF);