iio: ad7380: add support for SPI offload

Add support for SPI offload to the ad7380 driver. SPI offload allows
sampling data at the max sample rate (2MSPS with one SDO line).

This is developed and t

iio: ad7380: add support for SPI offload

Add support for SPI offload to the ad7380 driver. SPI offload allows
sampling data at the max sample rate (2MSPS with one SDO line).

This is developed and tested against the ADI example FPGA design for
this family of ADCs [1].

[1]: http://analogdevicesinc.github.io/hdl/projects/ad738x_fmc/index.html

Signed-off-by: Angelo Dureghello <[email protected]>
Link: https://patch.msgid.link/20250310-wip-bl-spi-offload-ad7380-v4-1-b184b37b7c72@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7191: add AD7191

AD7191 is a pin-programmable, ultra-low noise 24-bit sigma-delta ADC
designed for precision bridge sensor measurements. It features two
differential analog input channel

iio: adc: ad7191: add AD7191

AD7191 is a pin-programmable, ultra-low noise 24-bit sigma-delta ADC
designed for precision bridge sensor measurements. It features two
differential analog input channels, selectable output rates,
programmable gain, internal temperature sensor and simultaneous
50Hz/60Hz rejection.

Signed-off-by: Alisa-Dariana Roman <[email protected]>
Reviewed-by: David Lechner<[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: Add driver for ADS7128 / ADS7138

Add driver for ADS7128 and ADS7138 12-bit, 8-channel analog-to-digital
converters. These ADCs have a wide operating range and a wide feature
set. Communica

iio: adc: Add driver for ADS7128 / ADS7138

Add driver for ADS7128 and ADS7138 12-bit, 8-channel analog-to-digital
converters. These ADCs have a wide operating range and a wide feature
set. Communication is based on the I2C interface.
ADS7128 differs in the addition of further hardware features, like a
root-mean-square (RMS) and a zero-crossing-detect (ZCD) module.

Signed-off-by: Tobias Sperling <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad4030: add driver for ad4030-24

This adds a new driver for the Analog Devices INC. AD4030-24 ADC.

The driver implements basic support for the AD4030-24 1 channel
differential ADC with ha

iio: adc: ad4030: add driver for ad4030-24

This adds a new driver for the Analog Devices INC. AD4030-24 ADC.

The driver implements basic support for the AD4030-24 1 channel
differential ADC with hardware gain and offset control.

Signed-off-by: Esteban Blanc <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad4851: add ad485x driver

Add support for the AD485X a fully buffered, 8-channel simultaneous
sampling, 16/20-bit, 1 MSPS data acquisition system (DAS) with
differential, wide common-mode

iio: adc: ad4851: add ad485x driver

Add support for the AD485X a fully buffered, 8-channel simultaneous
sampling, 16/20-bit, 1 MSPS data acquisition system (DAS) with
differential, wide common-mode range inputs.

Signed-off-by: Antoniu Miclaus <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad4695: Add support for SPI offload

Add support for SPI offload to the ad4695 driver. SPI offload allows
sampling data at the max sample rate (500kSPS or 1MSPS).

This is developed and tes

iio: adc: ad4695: Add support for SPI offload

Add support for SPI offload to the ad4695 driver. SPI offload allows
sampling data at the max sample rate (500kSPS or 1MSPS).

This is developed and tested against the ADI example FPGA design for
this family of ADCs [1].

[1]: http://analogdevicesinc.github.io/hdl/projects/ad469x_fmc/index.html

Reviewed-by: Nuno Sa <[email protected]>
Signed-off-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-14-e48a489be48c@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7944: add support for SPI offload

Add support for SPI offload to the ad7944 driver. This allows reading
data at the max sample rate of 2.5 MSPS.

Reviewed-by: Jonathan Cameron <Jonathan.

iio: adc: ad7944: add support for SPI offload

Add support for SPI offload to the ad7944 driver. This allows reading
data at the max sample rate of 2.5 MSPS.

Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Nuno Sa <[email protected]>
Signed-off-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-11-e48a489be48c@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad4695: add custom regmap bus callbacks

Add a custom implementation of regmap read/write callbacks using the SPI
bus. This allows them to be performed at a lower SCLK rate than data
reads.

iio: adc: ad4695: add custom regmap bus callbacks

Add a custom implementation of regmap read/write callbacks using the SPI
bus. This allows them to be performed at a lower SCLK rate than data
reads. Previously, all SPI transfers were being performed at a lower
speed, but with this change sample data is read at the max bus speed
while the register reads/writes remain at the lower rate.

Also remove .can_multi_write from the AD4695 driver's regmap_configs, as
this isn't implemented or needed.

For some background context, see:

https://lore.kernel.org/linux-iio/[email protected]/

Suggested-by: David Lechner <[email protected]>
Signed-off-by: Trevor Gamblin <[email protected]>
Reviewed-by: David Lechner <[email protected]>
Tested-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/20241113-tgamblin-ad4695_improvements-v2-3-b6bb7c758fc4@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: Remove "default n" entries

Linus already once did that for PDx86, don't repeat our mistakes.
TL;DR: 'n' *is* the default 'default'.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux

iio: adc: Remove "default n" entries

Linus already once did that for PDx86, don't repeat our mistakes.
TL;DR: 'n' *is* the default 'default'.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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drivers: iio: adc: add support for ad777x family

Add support for AD7770, AD7771, AD7779 ADCs. The device is capable of
sending out data both on DOUT lines interface,as on the SDO line.
The driver cu

drivers: iio: adc: add support for ad777x family

Add support for AD7770, AD7771, AD7779 ADCs. The device is capable of
sending out data both on DOUT lines interface,as on the SDO line.
The driver currently implements only the SDO data streaming mode. SPI
communication is used alternatively for accessing registers and streaming
data. Register accesses are protected by crc8.

Signed-off-by: Ramona Alexandra Nechita <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7606: Add iio-backend support

- Basic support for iio backend.
- Supports IIO_CHAN_INFO_SAMP_FREQ R/W.
- Only hardware mode is available, and that IIO_CHAN_INFO_RAW is not
supported if

iio: adc: ad7606: Add iio-backend support

- Basic support for iio backend.
- Supports IIO_CHAN_INFO_SAMP_FREQ R/W.
- Only hardware mode is available, and that IIO_CHAN_INFO_RAW is not
supported if iio-backend mode is selected.

Signed-off-by: Guillaume Stols <[email protected]>
Link: https://patch.msgid.link/20241015-ad7606_add_iio_backend_support-v5-7-654faf1ae08c@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7625: add driver

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 (AD7

iio: adc: ad7625: add driver

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 <[email protected]>
Signed-off-by: Trevor Gamblin <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad4695: Add missing Kconfig select

Add select IIO_BUFFER and select IIO_TRIGGERED_BUFFER to the Kconfig for
the ad4695 driver.

Fixes: 6cc7e4bf2e08 ("iio: adc: ad4695: implement triggered

iio: adc: ad4695: Add missing Kconfig select

Add select IIO_BUFFER and select IIO_TRIGGERED_BUFFER to the Kconfig for
the ad4695 driver.

Fixes: 6cc7e4bf2e08 ("iio: adc: ad4695: implement triggered buffer")
Signed-off-by: David Lechner <[email protected]>
Reviewed-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/20241009-iio-adc-ad4695-fix-kconfig-v1-1-e2a4dfde8d55@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ti-ads8688: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Fixes: 2a86487786b5 ("iio: adc: ti-a

iio: adc: ti-ads8688: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Fixes: 2a86487786b5 ("iio: adc: ti-ads8688: add trigger and buffer support")
Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.

Signed-off-by: Javier Carrasco <[email protected]>
Reviewed-by: Sean Nyekjaer <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ti-lmp92064: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER'

iio: adc: ti-lmp92064: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.

Fixes: 6c7bc1d27bb2 ("iio: adc: ti-lmp92064: add buffering support")
Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ti-lmp92064: add missing select REGMAP_SPI in Kconfig

This driver makes use of regmap_spi, but does not select the required
module.
Add the missing 'select REGMAP_SPI'.

Fixes: 62719894264

iio: adc: ti-lmp92064: add missing select REGMAP_SPI in Kconfig

This driver makes use of regmap_spi, but does not select the required
module.
Add the missing 'select REGMAP_SPI'.

Fixes: 627198942641 ("iio: adc: add ADC driver for the TI LMP92064 controller")
Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ti-ads124s08: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER

iio: adc: ti-ads124s08: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.

Fixes: e717f8c6dfec ("iio: adc: Add the TI ads124s08 ADC code")
Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7944: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' and

iio: adc: ad7944: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.

Fixes: d1efcf8871db ("iio: adc: ad7944: add driver for AD7944/AD7985/AD7986")
Signed-off-by: Javier Carrasco <[email protected]>
Reviewed-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: Add support for the GE HealthCare PMC ADC

The GE HealthCare PMC Analog to Digital Converter (ADC) is a 16-Channel
(voltage and current), 16-Bit ADC with an I2C Interface.

Signed-off-by: H

iio: adc: Add support for the GE HealthCare PMC ADC

The GE HealthCare PMC Analog to Digital Converter (ADC) is a 16-Channel
(voltage and current), 16-Bit ADC with an I2C Interface.

Signed-off-by: Herve Codina <[email protected]>
Tested-by: Ian Ray <[email protected]>
Reviewed-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: ad7606: Fix typo in the driver name

The parallel driver's name is ad7606_par and not ad7606_parallel.

Fixes: 0046a46a8f93 ("staging/ad7606: Actually build the interface modules")
Signed-o

iio: adc: ad7606: Fix typo in the driver name

The parallel driver's name is ad7606_par and not ad7606_parallel.

Fixes: 0046a46a8f93 ("staging/ad7606: Actually build the interface modules")
Signed-off-by: Guillaume Stols <[email protected]>
Link: https://patch.msgid.link/20241004-ad7606_add_iio_backend_support-v3-1-38757012ce82@baylibre.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: sophgo-saradc: Add driver for Sophgo CV1800B SARADC

This adds a driver for the Sophgo CV1800B SARADC.

Signed-off-by: Thomas Bonnefille <[email protected]>
Link: https://patch.

iio: adc: sophgo-saradc: Add driver for Sophgo CV1800B SARADC

This adds a driver for the Sophgo CV1800B SARADC.

Signed-off-by: Thomas Bonnefille <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: stm32-dfsdm: add scaling support to dfsdm

Add scaling support to STM32 DFSDM.

When used in an analog context, a DFSDM filter typically converts the data
from a sigma delta modulator. The

iio: adc: stm32-dfsdm: add scaling support to dfsdm

Add scaling support to STM32 DFSDM.

When used in an analog context, a DFSDM filter typically converts the data
from a sigma delta modulator. The IIO device associated to the DFSDM
filter provides these data as raw data.
The IIO device can provide scaling information (voltage and offset) to
allow conversion of raw data into physical values.

With the new binding based on IIO backend framework, the sigma delta
modulators are defined as backends providing scaling information.

The scaling is not supported with legacy binding.

Signed-off-by: Olivier Moysan <[email protected]>
Acked-by: Nuno Sa <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: add iio backend support to sd modulator

The legacy sd modulator driver registers the sigma delta modulator as
an IIO channel provider. This implementation is not convenient when the
SD modulato

iio: add iio backend support to sd modulator

The legacy sd modulator driver registers the sigma delta modulator as
an IIO channel provider. This implementation is not convenient when the
SD modulator has to be cascaded with another IIO device. The scaling
information is distributed across devices, which makes it difficult to
report consistent scaling data on IIO devices.

The solution is to expose these cascaded IIO devices as an aggregate
device, which report global scaling information.
Add IIO backend support to SD modulator to allow scaling information
management.

Signed-off-by: Olivier Moysan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: Add support for AD4000

Add support for AD4000 series of low noise, low power, high speed,
successive approximation register (SAR) ADCs.

Reviewed-by: Nuno Sa <[email protected]>
Reviewed-

iio: adc: Add support for AD4000

Add support for AD4000 series of low noise, low power, high speed,
successive approximation register (SAR) ADCs.

Reviewed-by: Nuno Sa <[email protected]>
Reviewed-by: David Lechner <[email protected]>
Signed-off-by: Marcelo Schmitt <[email protected]>
Link: https://patch.msgid.link/356109ac61182f16f2379d5d0cadccfe017f505b.1720810545.git.marcelo.schmitt@analog.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: adc: add support for pac1921

Add support for Microchip PAC1921 Power/Current monitor.

Implemented features:
* capture of bus voltage, sense voltage, current and power measurements
in free-ru

iio: adc: add support for pac1921

Add support for Microchip PAC1921 Power/Current monitor.

Implemented features:
* capture of bus voltage, sense voltage, current and power measurements
in free-run integration mode
* support for both raw and triggered buffer reading
* support for overflow events
* scale attributes to control voltage and current gains
* oversampling ratio attribute to control the number of integration
samples
* sampling rate attribute that reflects the integration period
* userspace attribute and DT parameter to control shunt resistor
* simple power management support

Limitations:
* operation mode fixed to free-run integration
* READ/INT pin and OUT pin not supported
* no controls for measurement resolutions and filters

Signed-off-by: Matteo Martelli <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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