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[v2,0/2] iio: adc: ti-ads1119: Add driver

Message ID 20240606163529.87528-1-francesco@dolcini.it (mailing list archive)
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Series iio: adc: ti-ads1119: Add driver | expand

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Francesco Dolcini June 6, 2024, 4:35 p.m. UTC 
From: Francesco Dolcini <francesco.dolcini@toradex.com>

The ADS1119 is a precision, 16-bit, analog-to-digital converter (ADC)
that features two differential or four single-ended inputs through a
flexible input multiplexer (MUX), rail-to-rail input
buffers, a programmable gain stage, a voltage reference, and an
oscillator.

Apart from normal single conversion, the driver also supports
continuous conversion mode using a triggered buffer. However, in this
mode only one channel can be scanned at a time, and it only uses the data
ready interrupt as a trigger. This is because the device channels are
multiplexed, and using its own data ready interrupt as a trigger guarantees
the signal sampling frequency.

v2:
 bindings:
 - add diff-channels and single-channel
 - remove ti,gain and ti,datarate
 - more details on the patch changelog

 driver:
 - adaptation for the binding changes
 - changed i2c read/write to the device (not using regmap anymore, use FIELD macros)
 - more details on the patch changelog

v1: https://lore.kernel.org/all/20240527154050.24975-1-francesco@dolcini.it/

João Paulo Gonçalves (2):
  dt-bindings: iio: adc: add ti,ads1119
  iio: adc: ti-ads1119: Add driver

 .../bindings/iio/adc/ti,ads1119.yaml          | 148 +++
 MAINTAINERS                                   |   8 +
 drivers/iio/adc/Kconfig                       |  12 +
 drivers/iio/adc/Makefile                      |   1 +
 drivers/iio/adc/ti-ads1119.c                  | 850 ++++++++++++++++++
 5 files changed, 1019 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
 create mode 100644 drivers/iio/adc/ti-ads1119.c