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| author | Olivier Moysan <olivier.moysan@foss.st.com> | 2024-07-30 10:46:39 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-08-10 11:17:34 +0100 |
| commit | 6fc839dc320cd68c6009d5f5d73b7aa6ba428889 (patch) | |
| tree | 341f69ddfe7b9a1066930628e238c65b4bd23209 /drivers/iio/adc/Kconfig | |
| parent | bd71b6d0ba5ec195d580d79b1ebdfedaeb63aae2 (diff) | |
| download | linux-6fc839dc320cd68c6009d5f5d73b7aa6ba428889.tar.gz linux-6fc839dc320cd68c6009d5f5d73b7aa6ba428889.tar.bz2 linux-6fc839dc320cd68c6009d5f5d73b7aa6ba428889.zip | |
iio: adc: stm32-dfsdm: add scaling support to dfsdm
Add scaling support to STM32 DFSDM.
When used in an analog context, a DFSDM filter typically converts the data
from a sigma delta modulator. The IIO device associated to the DFSDM
filter provides these data as raw data.
The IIO device can provide scaling information (voltage and offset) to
allow conversion of raw data into physical values.
With the new binding based on IIO backend framework, the sigma delta
modulators are defined as backends providing scaling information.
The scaling is not supported with legacy binding.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Acked-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240730084640.1307938-10-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/Kconfig')
| -rw-r--r-- | drivers/iio/adc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 1babd4f69a7e..88e8ce2e78b3 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -1262,6 +1262,7 @@ config STM32_DFSDM_ADC select IIO_BUFFER select IIO_BUFFER_HW_CONSUMER select IIO_TRIGGERED_BUFFER + select IIO_BACKEND help Select this option to support ADCSigma delta modulator for STMicroelectronics STM32 digital filter for sigma delta converter. |