Re: [PATCH v2 05/16] iio: adc: mediatek: add mt6323 PMIC AUXADC driver
From: Jonathan Cameron
Date: Tue May 12 2026 - 13:05:39 EST
On Tue, 12 May 2026 14:34:55 +0000
Roman Vivchar <rva333@xxxxxxxxxxxxxx> wrote:
> On Tuesday, May 12th, 2026 at 4:29 PM, Jonathan Cameron <jic23@xxxxxxxxxx> wrote:
>
> > On Tue, 12 May 2026 08:18:19 +0300
> > Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@xxxxxxxxxx> wrote:
>
> ...
>
> > > +#define VOLTAGE_FULL_RANGE 1800
> > Probably better to have this inline - however if you do keep it
> > prefix t he define VOLTAGE_FULL_RANGE sounds too generic!
> >
> > > +#define AUXADC_PRECISE 32768
> > I'd put that inline. Little benefit it in having it up here...
>
> There was a mention about magic values in the v1 for the thermal patch [1].
> Andy, would it be better to use an inline style or a #define here?
> If the former, I'll rename the first constant to something like
> AUXADC_VOLTAGE_FULL_RANGE.
FWIW that isn't a magic value - it's 2**resolution and the one is a voltage
in mV. Those aren't normally the ones people care about defines for - those
apply when they are weird and wonderful things not related directly to physical
quantities.
Jonathan
>
> [1]: https://lore.kernel.org/linux-mediatek/afmnUG8dG0N0HpV6@ashevche-desk.local/
>
> Best regards,
> Roman