Re: [PATCH 0/3] iio: adc: stm32: add smart calibration

[Fabrice Gasnier <fabrice.gasnier@foss.st.com>]

On 11/15/22 11:31, Olivier Moysan wrote:
> Refine offset and linear calibration strategy for STM32MP15 and
> STM32MP13 SoCs:
> 
> - offset calibration
> This calibration depends on factors such as temperature and voltage.
> As it is not time consuming, it's worth doing it on each ADC
> start, to get the best accuracy. There is no need to save these data.
> 
> - linear calibration
> This calibration is basically SoC dependent, so it can be done only once.
> When this calibration has been performed at boot stage, the ADC kernel
> driver can retrieve the calibration data from the ADC registers.
> Otherwise, the linear calibration is performed once by the ADC driver.
> The backup of these data, allows to restore them on successive ADC starts.
> 
> Olivier Moysan (3):
>   iio: adc: stm32-adc: smart calibration support
>   iio: adc: stm32-adc: improve calibration error log
>   iio: adc: stm32-adc: add debugfs to read raw calibration result

Hi Olivier,

For the series, you can add my:
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>

Thanks,
Fabrice

> 
>  drivers/iio/adc/stm32-adc-core.h |   1 +
>  drivers/iio/adc/stm32-adc.c      | 135 ++++++++++++++++++-------------
>  2 files changed, 78 insertions(+), 58 deletions(-)
> 

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