[0/2] hwmon: Add TI ads1000/ads1100 driver package

Message

Serge Semin May 14, 2019, 10:58 p.m. UTC

This a simple single-channel ADC device similar to ads1100 series,
but with much less capabilities. These ADCs are working over i2c-interface
with just one differential input and with configurable 12-16 bits
resolution. Sample rate is fixed to 128 for ads1000 and can vary from 8
to 128 for ads1100. Vdd value reference value must be supplied so to
properly translate the sampled code to the real voltage.

Even though ads1000/ads1100 devices seem more like ads1015 series, they
in fact pretty much different. First of all ads1000/ads1100 got less
capabilities: just one port, no configurations of digital comparator, no
input multi-channel multiplexer, smaller PGA and data-rate ranges.
In addition they haven't got internal voltage reference, but instead
are created to use Vdd pin voltage. Finally the output code value is
provided in different format. As a result it was much easier for
development and for future support to create a separate driver, which
is opensoureced by means of this patchset.

Signed-off-by: Serge Semin <[e-mail]>


Serge Semin (2):
  dt-bindings: hwmon: Add DT bindings for TI ads1000/ads1100 ADCs
  hwmon: Add ads1000/ads1100 voltage ADCs driver

 .../devicetree/bindings/hwmon/ads1000.txt     |  61 ++++
 Documentation/hwmon/ads1000.rst               |  72 ++++
 MAINTAINERS                                   |   8 +
 drivers/hwmon/Kconfig                         |  10 +
 drivers/hwmon/Makefile                        |   1 +
 drivers/hwmon/ads1000.c                       | 320 ++++++++++++++++++
 include/linux/platform_data/ads1000.h         |  20 ++
 7 files changed, 492 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/ads1000.txt
 create mode 100644 Documentation/hwmon/ads1000.rst
 create mode 100644 drivers/hwmon/ads1000.c
 create mode 100644 include/linux/platform_data/ads1000.h