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

[Jonathan Cameron]

On Wed, 23 Nov 2022 12:04:36 +0100
Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx> wrote:

> 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@xxxxxxxxxxx>

Applied to the togreg branch of iio.git and pushed out as testing to let
0-day have a first look at it.

Thanks,

Jonathan

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