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Date:   Sun, 14 Jun 2020 14:17:38 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Tomasz Duszynski <tomasz.duszynski@...akon.com>
Cc:     <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <robh+dt@...nel.org>,
        <andy.shevchenko@...il.com>, <pmeerw@...erw.net>
Subject: Re: [PATCH v5 0/4] Add support for SCD30 sensor

On Sun, 7 Jun 2020 19:58:08 +0200
Tomasz Duszynski <tomasz.duszynski@...akon.com> wrote:

> Following series adds support for Sensirion SCD30 sensor module capable of
> measuring carbon dioxide, temperature and relative humidity. CO2 measurements
> base on NDIR principle while temperature and relative humidity are measured by
> the on board SHT31. As for sensor communication, both I2C and serial interfaces
> are supported.

Hi Tomasz,

All looks good to me.

I'll let it sit on the list a bit longer though to give time for anyone
else to review if they wish and ideally pick up a DT review if
Rob has time.  It isn't unheard of me to somehow loose a set down
the back of the sofa, so do poke me if I seem to to have lost this
in a few weeks time! (I'll try not to of course!)

Thanks,

Jonathan

> 
> v5:
> * set pressure calibration via output channel
> * use kstrtobool() to read value into _enabled attribute
> * drop explicit parent asignment as the default one is good enough
>   (seems 'iio: core: pass parent device as parameter during allocation'
>    series was accepted)
> 
> v4:
> * improve formatting
> * improve error handling readability
> * fix message validity check on serial write
> 
> v3:
> * simplify code by scaling temperature & humidity in _read_meas()
> * update realbits in scan types
> * s/adjecent/adjacent
> * drop IIO_CHAN_INFO_RAW from _write_raw_get_fmt because there's no raw
>   output channel
> * rework locking in _read_raw
> * fix endianess problem on BE machine
> * align timestamp properly before pushing to buffers
> * explain why interrupt gets disabled after registration
> * add trigger validation
> * drop SCALE for temperature and humidity channel as they are processed
> * register action which stops measuring after starting measurements
> * spit generic calibration attr into two doing specific things
> * add comment explaining why priv in struct scd30_state is for
> * rename node in binding example to co2-sensor
> 
> v2:
> * move asm/byteorder.h towards the bottom of include list
> * make channel address names in enum more specific
> * add postfixes to defines and extra comments
> * drop unneeded i2c include from scd30 header
> * break generic command sending function into specialized options
> * expose automatic calibration and forced calibration via the same attr
> * use SAMP_FREQ to set frequency instead of meas_interval attr
> * use CALISCALE to set pressure compensation instead of pressure_comp attr
> * use CALIBBIAS to set temperature offset instead of temp_offset attr
> * fix order in MAINTAINERS
> * drop attribute allowing one to reset sensor
> * as we have dt probing drop board file based probing (i2c_device_id)
> * merge patches touching related files
> * use fwnode API to retrieve interrupt from dt
> * fix interrupt-parent spelling
> * change binding license
> * drop supply from required property
> 
> Tomasz Duszynski (4):
>   iio: chemical: scd30: add core driver
>   iio: chemical: scd30: add I2C interface driver
>   iio: chemical: scd30: add serial interface driver
>   dt-bindings: iio: scd30: add device binding file
> 
>  Documentation/ABI/testing/sysfs-bus-iio-scd30 |  34 +
>  .../iio/chemical/sensirion,scd30.yaml         |  68 ++
>  MAINTAINERS                                   |   9 +
>  drivers/iio/chemical/Kconfig                  |  33 +
>  drivers/iio/chemical/Makefile                 |   3 +
>  drivers/iio/chemical/scd30.h                  |  78 ++
>  drivers/iio/chemical/scd30_core.c             | 770 ++++++++++++++++++
>  drivers/iio/chemical/scd30_i2c.c              | 139 ++++
>  drivers/iio/chemical/scd30_serial.c           | 263 ++++++
>  9 files changed, 1397 insertions(+)
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-scd30
>  create mode 100644 Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
>  create mode 100644 drivers/iio/chemical/scd30.h
>  create mode 100644 drivers/iio/chemical/scd30_core.c
>  create mode 100644 drivers/iio/chemical/scd30_i2c.c
>  create mode 100644 drivers/iio/chemical/scd30_serial.c
> 
> --
> 2.27.0
> 

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