iio: addac: add AD74413R driver

The AD74412R and AD74413R are quad-channel, software configurable, input/output solutions for building and process control applications. They contain functionality for analog output, analog input, digital input, resistance temperature detector, and thermocouple measurements integrated into a single chip solution with an SPI interface. The devices feature a 16-bit ADC and four configurable 13-bit DACs to provide four configurable input/output channels and a suite of diagnostic functions. The AD74413R differentiates itself from the AD74412R by being HART-compatible. When configured with channel 0 as voltage output, channel 1 as current output, channel 2 as voltage input and channel 3 as current input, the following structure is created under the corresponding IIO device. . ├── in_current0_offset ├── in_current0_raw ├── in_current0_sampling_frequency ├── in_current0_sampling_frequency_available ├── in_current0_scale ├── in_voltage1_offset ├── in_voltage1_raw ├── in_voltage1_sampling_frequency ├── in_voltage1_sampling_frequency_available ├── in_voltage1_scale ├── in_voltage2_offset ├── in_voltage2_raw ├── in_voltage2_sampling_frequency ├── in_voltage2_sampling_frequency_available ├── in_voltage2_scale ├── in_current3_offset ├── in_current3_raw ├── in_current3_sampling_frequency ├── in_current3_sampling_frequency_available ├── in_current3_scale ├── out_voltage0_raw ├── out_voltage0_scale ├── out_current1_raw ├── out_current1_scale ├── name ├── buffer │ ├── data_available │ ├── enable │ ├── length │ └── watermark └── scan_elements ├── in_current0_en ├── in_current0_index ├── in_current0_type ├── in_voltage1_en ├── in_voltage1_index ├── in_voltage1_type ├── in_voltage2_en ├── in_voltage2_index ├── in_voltage2_type ├── in_current3_en ├── in_current3_index └── in_current3_type Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20211205114045.173612-4-cosmin.tanislav@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
torvalds · Dec 12, 2021 · fea251b · fea251b
1 parent 3cf3cde
commit fea251b
Show file tree

Hide file tree

Showing 4 changed files with 1,497 additions and 0 deletions.
diff --git a/MAINTAINERS b/MAINTAINERS
@@ -1069,6 +1069,15 @@ W:	http://ez.analog.com/community/linux-device-drivers
 F:	Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
 F:	drivers/iio/adc/ad7780.c
 
+ANALOG DEVICES INC AD74413R DRIVER
+M:	Cosmin Tanislav <cosmin.tanislav@analog.com>
+L:	linux-iio@vger.kernel.org
+S:	Supported
+W:	http://ez.analog.com/community/linux-device-drivers
+F:	Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
+F:	drivers/iio/addac/ad74413r.c
+F:	include/dt-bindings/iio/addac/adi,ad74413r.h
+
 ANALOG DEVICES INC AD9389B DRIVER
 M:	Hans Verkuil <hverkuil-cisco@xs4all.nl>
 L:	linux-media@vger.kernel.org

diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig
@@ -5,4 +5,16 @@
 
 menu "Analog to digital and digital to analog converters"
 
+config AD74413R
+	tristate "Analog Devices AD74412R/AD74413R driver"
+	depends on GPIOLIB && SPI
+	select REGMAP_SPI
+	select CRC8
+	help
+	  Say yes here to build support for Analog Devices AD74412R/AD74413R
+	  quad-channel software configurable input/output solution.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad74413r.
+
 endmenu
diff --git a/drivers/iio/addac/Makefile b/drivers/iio/addac/Makefile
@@ -4,3 +4,4 @@
 #
 
 # When adding new entries keep the list in alphabetical order
+obj-$(CONFIG_AD74413R) += ad74413r.o
Original file line number	Diff line number	Diff line change
Expand Up		@@ -4,3 +4,4 @@
		#

		# When adding new entries keep the list in alphabetical order
		obj-$(CONFIG_AD74413R) += ad74413r.o