On Mon, 2 Sep 2019 16:08:29 +0300
Mircea Caprioru <mircea.caprioru@xxxxxxxxxx> wrote:
> This patch exports the ad_sd_calibrate function in order to be able to
> call it from outside ad_sigma_delta.
>
> There are cases where the option to calibrate one channel at a time is
> necessary (ex. system calibration for zero scale and full scale).
>
> Signed-off-by: Mircea Caprioru <mircea.caprioru@xxxxxxxxxx>
Applied, Thanks,
> ---
> Changelog V2:
> - no changes here
>
> Changelog V3:
> - no changes here
>
> Changelog V4:
> - no changes here
>
> drivers/iio/adc/ad_sigma_delta.c | 3 ++-
> include/linux/iio/adc/ad_sigma_delta.h | 2 ++
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
> index 2640b75fb774..8ba90486c787 100644
> --- a/drivers/iio/adc/ad_sigma_delta.c
> +++ b/drivers/iio/adc/ad_sigma_delta.c
> @@ -205,7 +205,7 @@ int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
> }
> EXPORT_SYMBOL_GPL(ad_sd_reset);
>
> -static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
> +int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
> unsigned int mode, unsigned int channel)
> {
> int ret;
> @@ -242,6 +242,7 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ad_sd_calibrate);
>
> /**
> * ad_sd_calibrate_all() - Performs channel calibration
> diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
> index 7716fa0c9fce..8a4e25a7080c 100644
> --- a/include/linux/iio/adc/ad_sigma_delta.h
> +++ b/include/linux/iio/adc/ad_sigma_delta.h
> @@ -119,6 +119,8 @@ int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
>
> int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
> const struct iio_chan_spec *chan, int *val);
> +int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
> + unsigned int mode, unsigned int channel);
> int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
> const struct ad_sd_calib_data *cd, unsigned int n);
> int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,
