Messages in this thread Patch in this message | | | From | Liam Beguin <> | Subject | [PATCH v4 05/10] iio: afe: rescale: add INT_PLUS_{MICRO,NANO} support | Date | Tue, 6 Jul 2021 12:09:37 -0400 |
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From: Liam Beguin <lvb@xiphos.com>
Add IIO_VAL_INT_PLUS_{NANO,MICRO} scaling support. Scale the integer part and the decimal parts individually and keep the original scaling type.
Signed-off-by: Liam Beguin <lvb@xiphos.com> --- drivers/iio/afe/iio-rescale.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c index ba3bdcc69b16..1d0e24145d87 100644 --- a/drivers/iio/afe/iio-rescale.c +++ b/drivers/iio/afe/iio-rescale.c @@ -89,7 +89,15 @@ static int rescale_read_raw(struct iio_dev *indio_dev, do_div(tmp, 1000000000LL); *val = tmp; return ret; + case IIO_VAL_INT_PLUS_NANO: + case IIO_VAL_INT_PLUS_MICRO: + tmp = (s64)*val * rescale->numerator; + *val = div_s64(tmp, rescale->denominator); + tmp = (s64)*val2 * rescale->numerator; + *val2 = div_s64(tmp, rescale->denominator); + return ret; default: + dev_err(&indio_dev->dev, "unsupported type %d\n", ret); return -EOPNOTSUPP; } default: -- 2.30.1.489.g328c10930387
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