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linux-stable/drivers/iio/pressure
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Andreas Klinger dee2dabc0e iio: bmp280: fix compensation of humidity 
Limit the output of humidity compensation to the range between 0 and 100
percent.

Depending on the calibration parameters of the individual sensor it
happens, that a humidity above 100 percent or below 0 percent is
calculated, which don't make sense in terms of relative humidity.

Add a clamp to the compensation formula as described in the datasheet of
the sensor in chapter 4.2.3.

Although this clamp is documented, it was never in the driver of the
kernel.

It depends on the circumstances (calibration parameters, temperature,
humidity) if one can see a value above 100 percent without the clamp.
The writer of this patch was working with this type of sensor without
noting this error. So it seems to be a rare event when this bug occures.

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-05-11 20:19:19 +01:00
..
abp060mg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
bmp280-core.c iio: bmp280: fix compensation of humidity 2020-05-11 20:19:19 +01:00
bmp280-i2c.c iio: pressure: bmp280: Allow device to be enumerated from ACPI 2019-12-29 15:20:10 +00:00
bmp280-regmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bmp280-spi.c iio: pressure: bmp280: use devm action and remove labels from probe 2019-10-22 11:10:23 +01:00
bmp280.h iio: pressure: bmp280: use devm action and remove labels from probe 2019-10-22 11:10:23 +01:00
cros_ec_baro.c iio: cros_ec: Expose hwfifo_timeout 2020-03-28 22:04:33 +01:00
dlhl60d.c iio: pressure: Add driver for DLH pressure sensors 2019-12-29 15:20:08 +00:00
dps310.c iio: dps310: Add pressure sensing capability 2019-06-08 12:33:32 +01:00
hid-sensor-press.c iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger 2020-05-10 09:35:53 +01:00
hp03.c iio: pressure: hp03: convert to i2c_new_dummy_device 2019-07-27 22:52:07 +01:00
hp206c.c iio: pressure: hp206c: Use get_unaligned_be24() 2020-05-03 09:47:20 +01:00
icp10100.c counter: 104-quad-8: Support Filter Clock Prescaler 2020-03-08 17:28:52 +00:00
Kconfig iio: pressure: icp10100: add driver for InvenSense ICP-101xx 2020-03-08 17:28:52 +00:00
Makefile iio: pressure: icp10100: add driver for InvenSense ICP-101xx 2020-03-08 17:28:52 +00:00
mpl115.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
mpl115.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
mpl115_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
mpl115_spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
mpl3115.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
ms5611.h iio: pressure: ms5611: switch to SPDX identifier 2018-09-08 15:04:02 +01:00
ms5611_core.c iio: pressure: ms5611: switch to SPDX identifier 2018-09-08 15:04:02 +01:00
ms5611_i2c.c iio: pressure: ms5611: Use get_unaligned_be24() 2020-05-03 09:47:20 +01:00
ms5611_spi.c iio: pressure: ms5611: Use get_unaligned_be24() 2020-05-03 09:47:20 +01:00
ms5637.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177 2019-05-30 11:29:19 -07:00
st_pressure.h iio: pressure: st_press: Mark default_press_pdata with __maybe_unused 2019-12-29 15:20:05 +00:00
st_pressure_buffer.c iio:st_sensors: remove buffer allocation at each buffer enable 2019-08-11 09:26:04 +01:00
st_pressure_core.c iio: st_sensors: Drop unneeded explicit castings 2020-03-21 10:26:21 +00:00
st_pressure_i2c.c iio: st_sensors: Make use of device properties 2020-01-13 21:53:39 +00:00
st_pressure_spi.c iio: st_sensors: Make use of device properties 2020-01-13 21:53:39 +00:00
t5403.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
zpa2326.c iio: pressure: zpa2326: Use get_unaligned_le24() 2020-05-03 09:47:20 +01:00
zpa2326.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
zpa2326_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
zpa2326_spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00