irq_status_prev 145 drivers/tty/serial/atmel_serial.c unsigned int irq_status_prev; irq_status_prev 1378 drivers/tty/serial/atmel_serial.c status_change = status ^ atmel_port->irq_status_prev; irq_status_prev 1379 drivers/tty/serial/atmel_serial.c atmel_port->irq_status_prev = status; irq_status_prev 1962 drivers/tty/serial/atmel_serial.c atmel_port->irq_status_prev = atmel_uart_readl(port, ATMEL_US_CSR);