diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 6d5d6e679fc7f59c568a0a1afbac800e51f91e49..af9b7814965a461921d337047c068aed9bb5d051 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1709,12 +1709,13 @@ static int atmel_serial_resume(struct platform_device *pdev)
 static int __devinit atmel_serial_probe(struct platform_device *pdev)
 {
 	struct atmel_uart_port *port;
+	struct atmel_uart_data *pdata = pdev->dev.platform_data;
 	void *data;
 	int ret;
 
 	BUILD_BUG_ON(ATMEL_SERIAL_RINGSIZE & (ATMEL_SERIAL_RINGSIZE - 1));
 
-	port = &atmel_ports[pdev->id];
+	port = &atmel_ports[pdata->num];
 	port->backup_imr = 0;
 
 	atmel_init_port(port, pdev);