IO_DATA_REG_OFFSET 67 drivers/tty/serial/mux.c #define UART_PUT_CHAR(p, c) __raw_writel((c), (p)->membase + IO_DATA_REG_OFFSET) IO_DATA_REG_OFFSET 236 drivers/tty/serial/mux.c data = __raw_readl(port->membase + IO_DATA_REG_OFFSET);