PCH_UART_IIR_RRI  141 drivers/tty/serial/pch_uart.c #define PCH_UART_IID_RDR	(PCH_UART_IIR_RRI)
PCH_UART_IIR_RRI  142 drivers/tty/serial/pch_uart.c #define PCH_UART_IID_RDR_TO	(PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)