On Wed, Dec 22, 2021 at 5:47 AM Liam Beguin [off-list ref] wrote:

From: Liam Beguin <redacted>

The approximation caused by integer divisions can be costly on smaller
scale values since the decimal part is significant compared to the
integer part. Switch to an IIO_VAL_INT_PLUS_NANO scale type in such
cases to maintain accuracy.

...

-               tmp = div_s64(tmp, 1000000000LL);
+
+               tmp = div_s64_rem(tmp, 1000000000LL, &rem);
                *val = tmp;

-               return scale_type;
+

It seems you may add this blank line to one of the previous patches, may you?

+               if (!rem)
+                       return scale_type;

-- 
With Best Regards,
Andy Shevchenko