Input: ad7879 - add support for AD7889

The AD7889 is a new part but 100% software compatible with the AD7879, so
add it to the id_table and help text.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/touchscreen/Kconfig

@@ -48,8 +48,8 @@ config TOUCHSCREEN_AD7879_I2C
 	select TOUCHSCREEN_AD7879
 	help
 	  Say Y here if you have a touchscreen interface using the
-	  AD7879-1 controller, and your board-specific initialization
-	  code includes that in its table of I2C devices.
+	  AD7879-1/AD7889-1 controller, and your board-specific
+	  initialization code includes that in its table of I2C devices.
 
 	  If unsure, say N (but it's safe to say "Y").
 
@@ -62,7 +62,7 @@ config TOUCHSCREEN_AD7879_SPI
 	select TOUCHSCREEN_AD7879
 	help
 	  Say Y here if you have a touchscreen interface using the
-	  AD7879 controller, and your board-specific initialization
+	  AD7879/AD7889 controller, and your board-specific initialization
 	  code includes that in its table of SPI devices.
 
 	  If unsure, say N (but it's safe to say "Y").

drivers/input/touchscreen/ad7879.c

 /*
- * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc.
+ * Copyright (C) 2008-2009 Michael Hennerich, Analog Devices Inc.
  *
- * Description:	AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface)
+ * Description:	AD7879/AD7889 based touchscreen, and GPIO driver
+ *		(I2C/SPI Interface)
  *
  * Bugs:        Enter bugs at http://blackfin.uclinux.org/
  *
@@ -747,6 +748,7 @@ static int __devexit ad7879_remove(struct i2c_client *client)
 
 static const struct i2c_device_id ad7879_id[] = {
 	{ "ad7879", 0 },
+	{ "ad7889", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, ad7879_id);