From: Mircea Caprioru Date: Mon, 2 Sep 2019 13:08:29 +0000 (+0300) Subject: iio: adc: ad_sigma_delta: Export ad_sd_calibrate X-Git-Tag: v5.5-rc1~135^2~250^2~39 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c88c8cd8265a9c7c2bf57350ab9c64d89c7b596b;p=linux.git 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: Mircea Caprioru Signed-off-by: Jonathan Cameron --- 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,