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| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2017-03-18 19:38:19 +0100 |
|---|---|---|
| committer |   Jonathan Cameron <jic23@kernel.org> | 2017-03-25 14:55:03 +0000 |
| commit | 48ba7c3c0b37363d9ddca3354ca503ad721e14dc (patch) | |
| tree | 29bdd0293434233619059e2f544ba15a82cd7e44 /include/linux/hid-sensor-ids.h | |
| parent | staging: adis16203: Remove locking on raw reads of IIO_CHAN_INFO_CALIBBIAS (diff) | |
| download | wireguard-linux-48ba7c3c0b37363d9ddca3354ca503ad721e14dc.tar.xz wireguard-linux-48ba7c3c0b37363d9ddca3354ca503ad721e14dc.zip | |
iio: adc: meson-saradc: add calibration
This patch adds calibration for the Meson SAR ADC.
Points 25% vref and 75% vref are used for calibration.
It uses a simple linear calibration function: SCALE * val + BIAS
Successfully tested on a Odroid C2.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'include/linux/hid-sensor-ids.h')
0 files changed, 0 insertions, 0 deletions