On Fri, 8 Oct 2021 12:17:02 +0200 Roan van Dijk <roan@xxxxxxxxxxx> wrote: > This series adds support for the Sensirion SCD4x sensor. > > The driver supports continuous reads of temperature, relative humdity and CO2 > concentration. There is an interval of 5 seconds between readings. During > this interval the drivers checks if the sensor has new data available. > > The driver is based on the scd30 driver. However, The scd4x has become too > different to just expand the scd30 driver. I made a new driver instead of > expanding the scd30 driver. I hope I made the right choice by doing so? Applied to the togreg branch of iio.git with the issues Randy mentioned tidied up. Pushed out as testing for 0-day to see if it can find anything we missed Thanks, Jonathan > > Changes since v5: > scd4x.c: > - Fix bug in trigger_handler > > Changes since v4: > scd4x.c: > - Minor fixes in documentation > - Reorder trigger_handler so memcpy is not needed anymore > Documentation: > - Change information about the KernelVersion for the > calibration_forced_value_available > > Changes since v3: > scd4x.c > - Change read and write_and_fetch function parameter. CRC byte is now > hidden inside the function. > - Fix minor style issues > - Add calibration_forced_value_available attribute to the driver > - Remove including BUFFER_TRIGGERED > - Change calibbias to raw ADC readings rather than converting it to > milli degrees C. > Documentation: > - Change description of driver attributes > - Add calibration_forced_value_available documentation > > Changes since v2: > scd4x.c: > - Change boolean operations > - Document scope of lock > - Remove device *dev from struct > - Add goto block for errror handling > - Add function to read value per channel in read_raw > - Fix bug with lock in error paths > - Remove conversion of humidity and temperature values > - Add scale and offset to temperature channel > - Add scale to humidity channel > - Move memset out of locked section > - Remove unused irq functions > - Move device register at end of probe function > Documentation: > - Copy content of sysfs-bus-iio-scd30 to sysfs-bus-iio > - Remove Documentation/ABI/testing/sysfs-bus-iio-scd30 > > Changes since v1: > dt-bindings: > - Separated compatible string for each sensor type > scd4x.c: > - Changed probe, resume and suspend functions to static > - Added SIMPLE_DEV_PM_OPS function call for power management > operations. > > Roan van Dijk (4): > dt-bindings: iio: chemical: sensirion,scd4x: Add yaml description > MAINTAINERS: Add myself as maintainer of the scd4x driver > drivers: iio: chemical: Add support for Sensirion SCD4x CO2 sensor > iio: documentation: Document scd4x calibration use > > Documentation/ABI/testing/sysfs-bus-iio | 41 ++ > Documentation/ABI/testing/sysfs-bus-iio-scd30 | 34 - > .../iio/chemical/sensirion,scd4x.yaml | 46 ++ > MAINTAINERS | 6 + > drivers/iio/chemical/Kconfig | 13 + > drivers/iio/chemical/Makefile | 1 + > drivers/iio/chemical/scd4x.c | 689 ++++++++++++++++++ > 7 files changed, 796 insertions(+), 34 deletions(-) > delete mode 100644 Documentation/ABI/testing/sysfs-bus-iio-scd30 > create mode 100644 Documentation/devicetree/bindings/iio/chemical/sensirion,scd4x.yaml > create mode 100644 drivers/iio/chemical/scd4x.c >
