iio:ad5446: Add device ids for ad5301/ad5311/ad5321

The ad5301/ad5311/ad5321 are software compatible to the ad5602/ad5612/ad5622.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/dac/Kconfig

@@ -59,10 +59,10 @@ config AD5446
 	tristate "Analog Devices AD5446 and similar single channel DACs driver"
 	depends on (SPI_MASTER || I2C)
 	help
-	  Say yes here to build support for Analog Devices AD5300, AD5310, AD5320,
-	  AD5444, AD5446, AD5450, AD5451, AD5452, AD5453, AD5512A, AD5541A, AD5542A,
-	  AD5543, AD5553, AD5601, AD5602, AD5611, AD5612, AD5620, AD5621, AD5622,
-	  AD5640, AD5660, AD5662 DACs.
+	  Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
+	  AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
+	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5602, AD5611, AD5612,
+	  AD5620, AD5621, AD5622, AD5640, AD5660, AD5662 DACs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5446.

drivers/iio/dac/ad5446.c

@@ -552,6 +552,9 @@ static int __devexit ad5446_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id ad5446_i2c_ids[] = {
+	{"ad5301", ID_AD5602},
+	{"ad5311", ID_AD5612},
+	{"ad5321", ID_AD5622},
 	{"ad5602", ID_AD5602},
 	{"ad5612", ID_AD5612},
 	{"ad5622", ID_AD5622},