linux/drivers/iio/amplifiers/Kconfig, branch master

iio: amplifiers: ad8366: add support for adrf5702/3

2026-03-26T20:10:26Z

Add chip info structs and device table entries for ADRF5702 and ADRF5703 Digital Step Attenuators. Reviewed-by: Nuno Sá Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: amplifiers: ad8366: update device support

2026-02-23T21:00:58Z

Add support for the following digital step attenuators: - HMC271A: 1dB LSB 5-Bit Digital Attenuator SMT, 0.7 - 3.7 GHz - ADRF5720: 0.5 dB LSB, 6-Bit, Digital Attenuator, 9 kHz to 40 GHz - ADRF5730: 0.5 dB LSB, 6-Bit, Digital Attenuator, 100 MHz to 40 GHz - ADRF5731: 2 dB LSB, 4-Bit, Digital Attenuator, 100 MHz to 40 GHz - HMC1018A: 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz - HMC1019A: 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Additionally, copyright notice was updated with current year. Co-developed-by: Alexandru Ardelean Signed-off-by: Alexandru Ardelean Co-developed-by: Michael Hennerich Signed-off-by: Michael Hennerich Reviewed-by: Andy Shevchenko Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: amplifiers: adl8113: add driver support

2025-12-21T11:41:13Z

Add support for adl8113 10MHz to 12GHz Low Noise Amplifier with 10MHz to 14GHz bypass switches. Signed-off-by: Antoniu Miclaus Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: add missing select REGMAP_SPI in Kconfig

2024-10-06T15:31:03Z

This driver makes use of regmap_spi, but does not select the required module. Add the missing 'select REGMAP_SPI'. Fixes: 28b4c30bfa5f ("iio: amplifiers: ada4250: add support for ADA4250") Signed-off-by: Javier Carrasco Link: https://patch.msgid.link/20241003-ad2s1210-select-v1-5-4019453f8c33@gmail.com Cc: Signed-off-by: Jonathan Cameron

iio: amplifiers: ad8366: add support for HMC792A Attenuator

2023-07-23T11:22:56Z

This change adds support for the HMC792A Digital Attenuator. The HMC792A is a broadband 6-bit GaAs MMIC Digital Attenuator operating from DC to 6.0 GHz with 15.75 dB attenuation control range in 0.25 dB steps. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/hmc792a.pdf Signed-off-by: Kim Seer Paller Link: https://lore.kernel.org/r/20230721121038.183404-1-kimseer.paller@analog.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: add support for ADA4250

2022-02-27T12:06:25Z

The ADA4250 is an instrumentation amplifier with SPI/pin-strap progammable gains that is optimized for ultra-low power systems. With a minimum supply voltage of 1.7V, 26uA of quiescent current, a shutdown mode, a sleep mode, and a fast wake up settling time, ADA4250 can be power cycled on a battery powered system for even futher savings. Signed-off-by: Antoniu Miclaus Link: https://lore.kernel.org/r/20220223120112.8067-2-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron

iio: Kconfig: ad8366: add entry for HMC1119 chip

2020-08-22T09:53:17Z

The change is mostly cosmetic. When looking into the menuconfig help of the ad8366 driver, the HMC1119 chip should also show up (since the driver supports it). Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

iio: amplifiers: hmc425a: Add support for HMC425A attenuator

2020-03-08T17:28:21Z

This patch adds support for the HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf Signed-off-by: Michael Hennerich Signed-off-by: Alexandru Ardelean Signed-off-by: Beniamin Bia Signed-off-by: Jonathan Cameron

iio: amplifiers: ad8366: Add support for ADL5240 VGA

2019-06-17T20:06:48Z

The ADL5240 is a high performance, digitally controlled variable gain amplifier (VGA) operating from 100 MHz to 4000 MHz. The VGA integrates a high performance, 20 dB gain, internally matched amplifier (AMP) with a 6-bit digital step attenuator (DSA) that has a gain control range of 31.5 dB in 0.5 dB steps with ±0.25 dB step accuracy. Datasheet link: https://www.analog.com/media/en/technical-documentation/data-sheets/adl5240.pdf Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

iio: amplifiers: ad8366: Add support for the ADA4961 DGA

2019-06-17T20:06:48Z

This change adds support for the ADA4961 BiCMOS RF Digital Gain Amplifier, (DGA), which is optimized for driving heavy loads out 2.0 GHz and beyond. The device typically achieves -90 dBc IMD3 performance at 500 MHz and -85 dBc at 1.5 GHz. Datasheet link: http://www.analog.com/media/en/technical-documentation/data-sheets/ADA4961.pdf This change re-uses the existing ad8366 driver, as most logic is similar. Also, this chip has a reset pin which is initialized during probe. Signed-off-by: Paul Cercueil Signed-off-by: Michael Hennerich Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron