iio:ad7476: Add ad7910/ad7920 device table entries

The ad7910/ad7920 are software compatible to the ad7467/ad7466.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/adc/Kconfig

@@ -31,14 +31,15 @@ config AD7791
 	  called ad7791.
 
 config AD7476
-	tristate "Analog Devices AD7475/6/7/8 AD7466/7/8 and AD7495 ADC driver"
+	tristate "Analog Devices AD7476 and similar 1-channel ADCs driver"
 	depends on SPI
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
-	  Say yes here to build support for Analog Devices
-	  AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495
-	  SPI analog to digital converters (ADC).
+	  Say yes here to build support for Analog Devices AD7475, AD7476, AD7477,
+	  AD7478, AD7466, AD7467, AD7468, AD7495, AD7910, AD7920 SPI analog to
+	  digital converters (ADC).
+
 	  If unsure, say N (but it's safe to say "Y").
 
 	  To compile this driver as a module, choose M here: the

drivers/iio/adc/ad7476.c

@@ -258,6 +258,8 @@ static const struct spi_device_id ad7476_id[] = {
 	{"ad7478", ID_AD7468},
 	{"ad7478a", ID_AD7468},
 	{"ad7495", ID_AD7495},
+	{"ad7910", ID_AD7467},
+	{"ad7920", ID_AD7466},
 	{}
 };
 MODULE_DEVICE_TABLE(spi, ad7476_id);
@@ -274,5 +276,5 @@ static struct spi_driver ad7476_driver = {
 module_spi_driver(ad7476_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7475/6/7/8(A) AD7466/7/8 ADC");
+MODULE_DESCRIPTION("Analog Devices AD7476 and similar 1-channel ADCs");
 MODULE_LICENSE("GPL v2");