Re: [PATCH v14 09/11] iio: afe: rescale: add temperature transducers

[Andy Shevchenko]

On Tue, Feb 8, 2022 at 4:04 AM Liam Beguin <liambeguin@xxxxxxxxx> wrote:
>
> A temperature transducer is a device that converts a thermal quantity
> into any other physical quantity. This patch adds support for
> temperature to voltage (like the LTC2997) and temperature to current
> (like the AD590) linear transducers.
> In both cases these are assumed to be connected to a voltage ADC.

...

> +       rescale->offset = div_s64((s64)offset * rescale->denominator,
> +                                 rescale->numerator);

Wonder if we can use mult_frac() here. Would it require 64-bit division?

-- 
With Best Regards,
Andy Shevchenko