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iio: adc: ad7625: add driver

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Add a driver for the AD762x and AD796x family of ADCs. These are
pin-compatible devices using an LVDS interface for data transfer,
capable of sampling at rates of 6 (AD7625), 10 (AD7626), and 5
(AD7960/AD7961) MSPS, respectively. They also feature multiple voltage
reference options based on the configuration of the EN1/EN0 pins, which
can be set in the devicetree.

Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Link: https://patch.msgid.link/20240909-ad7625_r1-v5-2-60a397768b25@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Trevor Gamblin
2024-09-09 10:30:48 -04:00
committed by Jonathan Cameron
parent 29301cc339
commit b7ffd0fa65
4 changed files with 702 additions and 0 deletions
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1
MAINTAINERS
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@@ -1335,6 +1335,7 @@ S: Supported
W: https://ez.analog.com/linux-software-drivers
W: http://analogdevicesinc.github.io/hdl/projects/pulsar_lvds/index.html
F: Documentation/devicetree/bindings/iio/adc/adi,ad7625.yaml
F: drivers/iio/adc/ad7625.c
ANALOG DEVICES INC AD7768-1 DRIVER
M: Michael Hennerich <Michael.Hennerich@analog.com>

16
drivers/iio/adc/Kconfig
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@@ -242,6 +242,22 @@ config AD7606_IFACE_SPI
To compile this driver as a module, choose M here: the
module will be called ad7606_spi.
config AD7625
tristate "Analog Devices AD7625/AD7626 High Speed ADC driver"
depends on PWM
select IIO_BACKEND
help
Say yes here to build support for Analog Devices:
* AD7625 16-Bit, 6 MSPS PulSAR Analog-to-Digital Converter
* AD7626 16-Bit, 10 MSPS PulSAR Analog-to-Digital Converter
* AD7960 18-Bit, 5 MSPS PulSAR Analog-to-Digital Converter
* AD7961 16-Bit, 5 MSPS PulSAR Analog-to-Digital Converter
The driver requires the assistance of the AXI ADC IP core to operate.
To compile this driver as a module, choose M here: the module will be
called ad7625.
config AD7766
tristate "Analog Devices AD7766/AD7767 ADC driver"
depends on SPI_MASTER

1
drivers/iio/adc/Makefile
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@@ -25,6 +25,7 @@ obj-$(CONFIG_AD7476) += ad7476.o
obj-$(CONFIG_AD7606_IFACE_PARALLEL) += ad7606_par.o
obj-$(CONFIG_AD7606_IFACE_SPI) += ad7606_spi.o
obj-$(CONFIG_AD7606) += ad7606.o
obj-$(CONFIG_AD7625) += ad7625.o
obj-$(CONFIG_AD7766) += ad7766.o
obj-$(CONFIG_AD7768_1) += ad7768-1.o
obj-$(CONFIG_AD7780) += ad7780.o

684
drivers/iio/adc/ad7625.c Normal file
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