From: Liam Beguin <lvb@xxxxxxxxxx>
Some ADCs use IIO_VAL_INT_PLUS_{NANO,MICRO} scale types.
Add support for these to allow using the iio-rescaler with them.
Signed-off-by: Liam Beguin <lvb@xxxxxxxxxx>
---
drivers/iio/afe/iio-rescale.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c
index d0669fd8eac5..2b73047365cc 100644
--- a/drivers/iio/afe/iio-rescale.c
+++ b/drivers/iio/afe/iio-rescale.c
@@ -41,6 +41,20 @@ int rescale_process_scale(struct rescale *rescale, int scale_type,
do_div(tmp, 1000000000LL);
*val = tmp;
return scale_type;
+ case IIO_VAL_INT_PLUS_NANO:
+ tmp = ((s64)*val * 1000000000LL + *val2) * rescale->numerator;
+ tmp = div_s64(tmp, rescale->denominator);
+
+ *val = div_s64(tmp, 1000000000LL);
+ *val2 = tmp - *val * 1000000000LL;
+ return scale_type;
+ case IIO_VAL_INT_PLUS_MICRO:
+ tmp = ((s64)*val * 1000000LL + *val2) * rescale->numerator;
+ tmp = div_s64(tmp, rescale->denominator);
+
+ *val = div_s64(tmp, 1000000);
+ *val2 = tmp - *val * 1000000;
+ return scale_type;
default:
return -EOPNOTSUPP;
}
--
2.30.1.489.g328c10930387
