Re: [PATCH v9 5/6] iio: adc: ltc2378: Add support for LTC2338-18

[Andy Shevchenko <andriy.shevchenko@intel.com>]

On Mon, Aug 10, 2026 at 11:45:55PM -0300, Marcelo Schmitt wrote:

...

> > > +	/*
> > > +	 * The internal reference buffer amplifies both the internal reference
> > > +	 * and REFIN by a factor of 2.
> > > +	 */
> > > +	ret = devm_regulator_get_enable_read_voltage(dev, "refin");
> > > +	if (ret == -ENODEV) { /* refin is optional */
> > > +		st->ref_uV = st->info->internal_ref_uV * 2;
> > > +		return 0;
> > > +	}
> > > +
> > > +	if (ret < 0)
> > > +		return dev_err_probe(dev, ret, "failed to read refin regulator\n");
> > > +
> > > +	st->ref_uV = ret * 2;
> > > +
> > > +	return 0;
> > 
> > I'm not sure about others' preferences, but I would do it as if-else-if and
> > remove dup return 0.
> > 
> > 	if (ret == -ENODEV) /* refin is optional */
> > 		st->ref_uV = st->info->internal_ref_uV * 2;
> > 	else if (ret < 0)
> > 		return dev_err_probe(dev, ret, "failed to read refin regulator\n");
> > 	else
> > 		st->ref_uV = ret * 2;
> > 
> > 	return 0;
> > 
> > It also makes code shorter (in amount of LoC).
> 
> This has already been applied to IIO testing. I do send another version of this
> specific patch if that's okay.

Jonathan can replace it there, as rebase is inevitable anyway. Let's ask his
opinion: Jonathan, do you want a followup that can be folded or a new version
of this patch?

-- 
With Best Regards,
Andy Shevchenko