staging: IIO: DAC: AD5446: Add support for AD5601/AD5611/AD5621

This patch adds support for the AD5601/AD5611/AD5621 single channel,
8-/10-/12-bit, buffered voltage output DACs.

Changes since v1:
Sort Kconfig description my number

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 29 insertions, 1 deletions

diff --git a/drivers/staging/iio/dac/Kconfig b/drivers/staging/iio/dac/Kconfig
index 3c72871389a..67defcb359b 100644
--- a/drivers/staging/iio/dac/Kconfig
+++ b/drivers/staging/iio/dac/Kconfig
@@ -15,7 +15,8 @@ config AD5446
         depends on SPI
         help
           Say yes here to build support for Analog Devices AD5444, AD5446,
-          AD5512A, AD5542A, AD5543, AD5553, AD5620, AD5640, AD5660 DACs.
+          AD5512A, AD5542A, AD5543, AD5553, AD5601, AD5611, AD5620, AD5621,
+          AD5640, AD5660 DACs.
 
           To compile this driver as a module, choose M here: the
           module will be called ad5446.
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index 861a7eacdaf..8623a72e046 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -269,6 +269,27 @@ static const struct ad5446_chip_info ad5446_chip_info_tbl[] = {
                 .left_shift = 0,
                 .store_sample = ad5542_store_sample,
         },
+        [ID_AD5601] = {
+                .bits = 8,
+                .storagebits = 16,
+                .left_shift = 6,
+                .store_sample = ad5542_store_sample,
+                .store_pwr_down = ad5620_store_pwr_down,
+        },
+        [ID_AD5611] = {
+                .bits = 10,
+                .storagebits = 16,
+                .left_shift = 4,
+                .store_sample = ad5542_store_sample,
+                .store_pwr_down = ad5620_store_pwr_down,
+        },
+        [ID_AD5621] = {
+                .bits = 12,
+                .storagebits = 16,
+                .left_shift = 2,
+                .store_sample = ad5542_store_sample,
+                .store_pwr_down = ad5620_store_pwr_down,
+        },
         [ID_AD5620_2500] = {
                 .bits = 12,
                 .storagebits = 16,
@@ -424,6 +445,9 @@ static const struct spi_device_id ad5446_id[] = {
         {"ad5542a", ID_AD5542A},
         {"ad5543", ID_AD5543},
         {"ad5553", ID_AD5553},
+        {"ad5601", ID_AD5601},
+        {"ad5611", ID_AD5611},
+        {"ad5621", ID_AD5621},
         {"ad5620-2500", ID_AD5620_2500}, /* AD5620/40/60: */
         {"ad5620-1250", ID_AD5620_1250}, /* part numbers may look differently */
         {"ad5640-2500", ID_AD5640_2500},
diff --git a/drivers/staging/iio/dac/ad5446.h b/drivers/staging/iio/dac/ad5446.h
index e9397a6783c..7ac63ab8a11 100644
--- a/drivers/staging/iio/dac/ad5446.h
+++ b/drivers/staging/iio/dac/ad5446.h
@@ -96,6 +96,9 @@ enum ad5446_supported_device_ids {
         ID_AD5543,
         ID_AD5512A,
         ID_AD5553,
+        ID_AD5601,
+        ID_AD5611,
+        ID_AD5621,
         ID_AD5620_2500,
         ID_AD5620_1250,
         ID_AD5640_2500,