PCH_UART_IIR_TOI  142 drivers/tty/serial/pch_uart.c #define PCH_UART_IID_RDR_TO	(PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)
PCH_UART_IIR_TOI  605 drivers/tty/serial/pch_uart.c 		      (PCH_UART_IIR_IID | PCH_UART_IIR_TOI | PCH_UART_IIR_IP);