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| author | Olivier Moysan <olivier.moysan@foss.st.com> | 2021-10-14 15:12:27 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-10-20 14:43:54 +0100 |
| commit | 0e346b2cfa855d6e6990dbdb220983fbf2bb0b92 (patch) | |
| tree | 3b343348f8ca63bbc0c28229abf13e787dd8cc5c /mm | |
| parent | aec6e0d8f0fe2e99c6486ebf1979fe2a03890e39 (diff) | |
| download | linux-stable-0e346b2cfa855d6e6990dbdb220983fbf2bb0b92.tar.gz linux-stable-0e346b2cfa855d6e6990dbdb220983fbf2bb0b92.tar.bz2 linux-stable-0e346b2cfa855d6e6990dbdb220983fbf2bb0b92.zip | |
iio: adc: stm32-adc: add vrefint calibration support
Add support of vrefint calibration.
If a channel is labeled as vrefint, get vrefint calibration
from non volatile memory for this channel.
vrefint channel is exposed as a processed channel returning
the actual value of vrefp:
vrefp = 3.3 x vrefint_cal / vrefint_data
A conversion on vrefint channel allows to update scale
factor according to vrefint deviation, compared to vrefint
calibration value.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20211014131228.4692-7-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions