This patch series adds support for Plantower PMS7003 PM matter sensor. Unfortunately datasheet is not available for download from the Plantower website so one needs to find it elsewhere, for instance here: https://download.kamami.com/p564008-p564008-PMS7003%20series%20data%20manua_English_V2.5.pdf v4: * add vendor prefix to set-gpios property v3: * fix whitespaces * drop unused printk format specifier * make vcc-supply mandatory in dt binding * use a generic node name (air-pollution-sensor) instead of a sensor model v2: * check number of bytes returned from serdev_device_write() (due to changes in linux 5.0 serdev api) * add missing pins descriptions to the driver binding * keep commands in the lookup table * buffer data and process everything in one go instead of using state machine * keep pm offset in channel address to simplify reading measurements Tomasz Duszynski (3): iio: chemical: add support for Plantower PMS7003 sensor dt-bindings: add Plantower to the vendor prefixes dt-bindings: iio: chemical: pms7003: add device tree support .../iio/chemical/plantower,pms7003.txt | 20 ++ .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/iio/chemical/Kconfig | 10 + drivers/iio/chemical/Makefile | 1 + drivers/iio/chemical/pms7003.c | 340 ++++++++++++++++++ 5 files changed, 372 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt create mode 100644 drivers/iio/chemical/pms7003.c -- 2.20.1
