Re: [PATCH v2 3/3] gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller

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On Wed, 2025-09-03 at 13:26 +0200, Andy Shevchenko wrote:
> On Wed, Sep 03, 2025 at 11:05:01AM +0100, Nuno Sá wrote:
> > The LTC4283 device has up to 8 pins that can be configured as GPIOs.
> > 
> > Note that PGIO pins are not set as GPIOs by default so if they are
> > configured to be used as GPIOs we need to make sure to initialize them
> > to a sane default. They are set as inputs by default.
> 
> ...
> 
> > +/* Non-constant mask variant of FIELD_GET() and FIELD_PREP() */
> > +#define field_get(_mask, _reg)	(((_reg) & (_mask)) >> (ffs(_mask) - 1))
> > +#define field_prep(_mask, _val)	(((_val) << (ffs(_mask) - 1)) &
> > (_mask))
> 

Kind of agree and I remember to see some work some time ago regarding this but
it seems it did not get anywhere. 

- Nuno Sá






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