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authorDragos Bogdan <dragos.bogdan@analog.com>2017-09-05 15:14:45 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2017-09-24 18:58:21 +0300
commit7fc10de8d49a748c476532c9d8e8fe19e548dd67 (patch)
tree2121a38638c76fe84bb10712847fb6359b5c1057 /include/linux/iio
parent4b1f0c31f96c45e8521dd84aae50f2aa4aecfb7b (diff)
downloadlinux-7fc10de8d49a748c476532c9d8e8fe19e548dd67.tar.xz
iio: ad_sigma_delta: Implement a dedicated reset function
Since most of the SD ADCs have the option of reseting the serial interface by sending a number of SCLKs with CS = 0 and DIN = 1, a dedicated function that can do this is usefull. Needed for the patch: iio: ad7793: Fix the serial interface reset Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
-rw-r--r--include/linux/iio/adc/ad_sigma_delta.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index 5ba430cc9a87..1fc7abd28b0b 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -111,6 +111,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
unsigned int size, unsigned int *val);
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+ unsigned int reset_length);
+
int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *val);
int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,