Commit 62094060 authored by Cosmin Tanislav's avatar Cosmin Tanislav Committed by Jonathan Cameron
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iio: adc: ad4130: add AD4130 driver 



AD4130-8 is an ultra-low power, high precision, measurement solution for
low bandwidth battery operated applications.

The fully integrated AFE (Analog Front-End) includes a multiplexer for up
to 16 single-ended or 8 differential inputs, PGA (Programmable Gain
Amplifier), 24-bit Sigma-Delta ADC, on-chip reference and oscillator,
selectable filter options, smart sequencer, sensor biasing and excitation
options, diagnostics, and a FIFO buffer.

Signed-off-by: default avatarCosmin Tanislav <cosmin.tanislav@analog.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20221021104115.1812486-3-demonsingur@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 36a4df50

Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130

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What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_filter_mode_available

KernelVersion:  6.2

Contact:	linux-iio@vger.kernel.org

Description:

		Reading returns a list with the possible filter modes.

		"sinc4"       - Sinc 4. Excellent noise performance. Long 1st

				conversion time. No natural 50/60Hz rejection.

		"sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion time.

		"sinc3"	      - Sinc3. Moderate 1st conversion time. Good noise

				performance.

		"sinc3+rej60" - Sinc3 + 60Hz rejection. At a sampling frequency

				of 50Hz, achieves simultaneous 50Hz and 60Hz

				rejection.

		"sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion time.

				Best used with a sampling frequency of at least

				216.19Hz.

		"sinc3+pf1"   - Sinc3 + Post Filter 1.

				53dB rejection @ 50Hz, 58dB rejection @ 60Hz.

		"sinc3+pf2"   - Sinc3 + Post Filter 2.

				70dB rejection @ 50Hz, 70dB rejection @ 60Hz.

		"sinc3+pf3"   - Sinc3 + Post Filter 3.

				99dB rejection @ 50Hz, 103dB rejection @ 60Hz.

		"sinc3+pf4"   - Sinc3 + Post Filter 4.

				103dB rejection @ 50Hz, 109dB rejection @ 60Hz.



What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_filter_mode

KernelVersion:  6.2

Contact:	linux-iio@vger.kernel.org

Description:

		Set the filter mode of the differential channel. When the filter

		mode changes, the in_voltageY-voltageZ_sampling_frequency and

		in_voltageY-voltageZ_sampling_frequency_available attributes

		might also change to accommodate the new filter mode.

		If the current sampling frequency is out of range for the new

		filter mode, the sampling frequency will be changed to the

		closest valid one.

MAINTAINERS

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@@ -1122,7 +1122,9 @@ 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/ABI/testing/sysfs-bus-iio-adc-ad4130

F:	Documentation/devicetree/bindings/iio/adc/adi,ad4130.yaml

F:	drivers/iio/adc/ad4130.c









ANALOG DEVICES INC AD7192 DRIVER









M:	Alexandru Tachici <alexandru.tachici@analog.com>
































drivers/iio/adc/Kconfig



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@@ -21,6 +21,20 @@ config AD_SIGMA_DELTA







	select IIO_BUFFER









	select IIO_TRIGGERED_BUFFER



















config AD4130









	tristate "Analog Device AD4130 ADC Driver"









	depends on SPI









	select IIO_BUFFER









	select IIO_KFIFO_BUF









	select REGMAP_SPI









	depends on COMMON_CLK









	help









	  Say yes here to build support for Analog Devices AD4130-8 SPI analog









	  to digital converters (ADC).



















	  To compile this driver as a module, choose M here: the module will be









	  called ad4130.



















config AD7091R5









	tristate "Analog Devices AD7091R5 ADC Driver"









	depends on I2C
































drivers/iio/adc/Makefile



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@@ -6,6 +6,7 @@







# When adding new entries keep the list in alphabetical order









obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o









obj-$(CONFIG_AD_SIGMA_DELTA) += ad_sigma_delta.o









obj-$(CONFIG_AD4130) += ad4130.o









obj-$(CONFIG_AD7091R5) += ad7091r5.o ad7091r-base.o









obj-$(CONFIG_AD7124) += ad7124.o









obj-$(CONFIG_AD7192) += ad7192.o
































drivers/iio/adc/ad4130.c
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