Commit c88c8cd8 authored by Mircea Caprioru's avatar Mircea Caprioru Committed by Jonathan Cameron
Browse files

iio: adc: ad_sigma_delta: Export ad_sd_calibrate 



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: default avatarMircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent b73b93a2

drivers/iio/adc/ad_sigma_delta.c

+2 −1
Original line number Diff line number Diff line
@@ -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 @@ out: 


	return ret;

}

EXPORT_SYMBOL_GPL(ad_sd_calibrate);



/**

 * ad_sd_calibrate_all() - Performs channel calibration

include/linux/iio/adc/ad_sigma_delta.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

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