aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/iio/adc/ad_sigma_delta.c
diff options
context:
space:
mode:
authorMircea Caprioru <mircea.caprioru@analog.com>2019-09-02 16:08:29 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2019-09-08 10:35:31 +0100
commitc88c8cd8265a9c7c2bf57350ab9c64d89c7b596b (patch)
tree9d1833f5bb5402d3a25b842ea3778f6bf2047acb /drivers/iio/adc/ad_sigma_delta.c
parentiio: adc: ad7192: Add sysfs ABI documentation (diff)
downloadlinux-dev-c88c8cd8265a9c7c2bf57350ab9c64d89c7b596b.tar.xz
linux-dev-c88c8cd8265a9c7c2bf57350ab9c64d89c7b596b.zip
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 <mircea.caprioru@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/ad_sigma_delta.c')
-rw-r--r--drivers/iio/adc/ad_sigma_delta.c3
1 files changed, 2 insertions, 1 deletions
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 @@ out:
return ret;
}
+EXPORT_SYMBOL_GPL(ad_sd_calibrate);
/**
* ad_sd_calibrate_all() - Performs channel calibration