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iio:dac:ad5446: Add support for the AD5450/51/52/53 

This patch adds support for the Analog Devices AD5450/51/52/53 Digital-to-Analog
converters.

The AD5452 and AD5453 are software compatible to the existing AD5444 and AD5446.
The AD5450 and AD5451 are similar but have a smaller resolution.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lars-Peter Clausen 2012-06-26 10:45:43 +02:00 committed by Greg Kroah-Hartman
parent 90e6dc7c27
commit 779c0c4619
3 changed files with 17 additions and 3 deletions
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6
drivers/iio/dac/Kconfig
View File

@ -59,9 +59,9 @@ config AD5446
tristate "Analog Devices AD5446 and similar single channel DACs driver"
depends on SPI
help
Say yes here to build support for Analog Devices AD5444, AD5446,
AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5611, AD5620,
AD5621, AD5640, AD5660, AD5662 DACs.
Say yes here to build support for Analog Devices AD5444, AD5446, AD5450,
AD5451, AD5452, AD5453, AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601,
AD5611, AD5620, AD5621, AD5640, AD5660, AD5662 DACs.
To compile this driver as a module, choose M here: the
module will be called ad5446.

12
drivers/iio/dac/ad5446.c
View File

@ -147,6 +147,14 @@ static const struct ad5446_chip_info ad5446_chip_info_tbl[] = {
.channel = AD5446_CHANNEL(14, 16, 0),
.write = ad5446_write,
},
[ID_AD5450] = {
.channel = AD5446_CHANNEL(8, 16, 6),
.write = ad5446_write,
},
[ID_AD5451] = {
.channel = AD5446_CHANNEL(10, 16, 4),
.write = ad5446_write,
},
[ID_AD5541A] = {
.channel = AD5446_CHANNEL(16, 16, 0),
.write = ad5446_write,
@ -346,6 +354,10 @@ static int ad5446_remove(struct spi_device *spi)
static const struct spi_device_id ad5446_id[] = {
{"ad5444", ID_AD5444},
{"ad5446", ID_AD5446},
{"ad5450", ID_AD5450},
{"ad5451", ID_AD5451},
{"ad5452", ID_AD5444}, /* ad5452 is compatible to the ad5444 */
{"ad5453", ID_AD5446}, /* ad5453 is compatible to the ad5446 */
{"ad5512a", ID_AD5512A},
{"ad5541a", ID_AD5541A},
{"ad5542a", ID_AD5541A}, /* ad5541a and ad5542a are compatible */

2
drivers/iio/dac/ad5446.h
View File

@ -71,6 +71,8 @@ struct ad5446_chip_info {
enum ad5446_supported_device_ids {
ID_AD5444,
ID_AD5446,
ID_AD5450,
ID_AD5451,
ID_AD5541A,
ID_AD5512A,
ID_AD5553,