* [PATCH v2 0/2] iio: chemical: Add support for sgp40 gas sensor
@ 2021-08-04 15:45 Andreas Klinger
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From: Andreas Klinger @ 2021-08-04 15:45 UTC (permalink / raw)
To: devicetree, linux-iio, Rob Herring, Jonathan Cameron
Cc: Jonathan Cameron, Jiri Kosina, Guenter Roeck, Chris Packham,
Slawomir Stepien, Krzysztof Kozlowski, Alexandre Belloni,
Vadim Pasternak, Alexandru Ardelean, linux-kernel,
Lars-Peter Clausen, Tomasz Duszynski
This patch set adds support for sensirion sgp40 gas sensor.
Many thanks for the in-depth reviews, especially of Jonathan who triggered
some important improvements for v2:
- provide more precision for voc value; this in turn triggered the folling
point:
- rework of e^x calculation with an optimization on the interesting range
between e^(-6) and e^6
- restructure use of endian types
- use __packed structures for sent telegrams
- optimize usage of mutex
- optimize switch-cases
- replace attributes by read_raw() and write_raw() values
- add documentation in Documentation/ABI/testing/sysfs-bus-iio-sgp40 as
well as in the source code
Andreas Klinger (2):
dt-bindings: iio: chemical: Add trivial DT binding for sgp40
iio: chemical: Add driver support for sgp40
.../ABI/testing/sysfs-bus-iio-chemical-sgp40 | 31 ++
.../devicetree/bindings/trivial-devices.yaml | 2 +
MAINTAINERS | 6 +
drivers/iio/chemical/Kconfig | 11 +
drivers/iio/chemical/Makefile | 1 +
drivers/iio/chemical/sgp40.c | 372 ++++++++++++++++++
6 files changed, 423 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
create mode 100644 drivers/iio/chemical/sgp40.c
--
2.20.1
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