Date: Wed, 26 Oct 2011 13:29:42 +0200
From: Bart Hartgers <bart.hartgers@gmail.com>
Subject: [PATCH] ark3116 initialisation fix

Hi,

This patch for the usb serial ark3116 driver fixes an initialisation
ordering bug that gets triggered on hotplug when using at least recent
debian/ubuntu userspace. Without it, ark3116 serial cables don't work.

Patch is against 3.1.

Groeten,
Bart

Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Tested-by: law_ence.dev@ntlworld.com
---
diff -ur linux-3.1.orig//drivers/usb/serial/ark3116.c linux-3.1/drivers/usb/serial/ark3116.c
--- linux-3.1.orig//drivers/usb/serial/ark3116.c	2011-10-24 09:10:05.000000000 +0200
+++ linux-3.1/drivers/usb/serial/ark3116.c	2011-10-26 09:16:41.776874595 +0200
@@ -42,7 +42,7 @@
  * Version information
  */
 
-#define DRIVER_VERSION "v0.6"
+#define DRIVER_VERSION "v0.7"
 #define DRIVER_AUTHOR "Bart Hartgers <bart.hartgers+ark3116@gmail.com>"
 #define DRIVER_DESC "USB ARK3116 serial/IrDA driver"
 #define DRIVER_DEV_DESC "ARK3116 RS232/IrDA"
@@ -380,10 +380,6 @@
 		goto err_out;
 	}
 
-	/* setup termios */
-	if (tty)
-		ark3116_set_termios(tty, port, NULL);
-
 	/* remove any data still left: also clears error state */
 	ark3116_read_reg(serial, UART_RX, buf);
 
@@ -406,6 +402,10 @@
 	/* enable DMA */
 	ark3116_write_reg(port->serial, UART_FCR, UART_FCR_DMA_SELECT);
 
+	/* setup termios */
+	if (tty)
+		ark3116_set_termios(tty, port, NULL);
+
 err_out:
 	kfree(buf);
 	return result;