Re: [PATCH V1] TPS62360: Add tps62360 regulator driver

[Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>]

On Sun, Jan 08, 2012 at 01:12:47PM +0530, Laxman Dewangan wrote:

> > Taking multiple different regulator_init_data is definitely not what we
> > want, there's a whole bunch of information in there, not just the
> > voltages.  You should just use platform data to specify the GPIOs (and
> > a set of voltages if you go with that approach).

> How do you pass the voltages along with gpios? If I understand correctly
> then it may be wither in range form or discrete form.
> Like in range form 500-700 for VSEL:00, 710-800 VSEL:01 etc.
> In discrete form VSEL00:500, 540, 550..
> For, VSEL01, VSEL00:510, 900,

Why would you have ranges?  If you've set the VSEL pins to a particular
value I'd expect the chip to produce whatever voltage is programmed for
that VSEL.

> In range form, the disadvantages is that, most of time, the voltage
> requirement is surrounding operating voltage and so it will use only
> one combination of VSEL in most of time and will not get the benefit.
> The discrete form have long list of voltage and filling table is pain.
> Also need to maintain the big list of lookuptable to select voltage
> configuration register.

You only have four possible VSELs so I don't see a concern there.