rtsirq           2226 drivers/tty/serial/imx.c 	int txirq, rxirq, rtsirq;
rtsirq           2251 drivers/tty/serial/imx.c 	rtsirq = platform_get_irq_optional(pdev, 2);
rtsirq           2379 drivers/tty/serial/imx.c 		ret = devm_request_irq(&pdev->dev, rtsirq, imx_uart_rtsint, 0,