linux/drivers/iio/pressure
Stefan Tatschner 2e419aec3b iio:pressure:bmp280: Read calibration data in probe
This patch affects BME280 and BMP280. The readout of the calibration
data is moved to the probe function. Each sensor data access triggered
reading the full calibration data before this patch. According to the
datasheet, Section 4.4.2., the calibration data is stored in non-volatile
memory.

Since the calibration data does not change, and cannot be changed by the
user, we can reduce bus traffic by reading the calibration data once.
Additionally, proper organization of the data types enables removing
some odd casts in the compensation formulas.

Signed-off-by: Stefan Tatschner <stefan.tatschner@gmail.com>
Tested-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08 16:03:43 +01:00
..
Kconfig
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
abp060mg.c
bmp280-core.c iio:pressure:bmp280: Read calibration data in probe 2018-01-08 16:03:43 +01:00
bmp280-i2c.c
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
bmp280.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cros_ec_baro.c
hid-sensor-press.c
hp03.c
hp206c.c
mpl115.c
mpl115.h
mpl115_i2c.c
mpl115_spi.c
mpl3115.c
ms5611.h
ms5611_core.c
ms5611_i2c.c
ms5611_spi.c
ms5637.c
st_pressure.h
st_pressure_buffer.c
st_pressure_core.c iio: st_sensors: split open-drain parameters for irq1 and irq2 2017-10-10 20:38:39 +01:00
st_pressure_i2c.c
st_pressure_spi.c
t5403.c
zpa2326.c Merge 4.14-rc6 into staging-next 2017-10-23 14:29:43 +02:00
zpa2326.h
zpa2326_i2c.c
zpa2326_spi.c