[PATCH] regulator: twl6030: add support for vdd1, vdd2 and vdd3 regulators

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Feb 24 09:01:10 EST 2012


On Fri, Feb 24, 2012 at 03:56:05PM +0200, Tero Kristo wrote:

> So, do you want me to also change the num_voltages value for the
> regulator from zero to be the same as max_uV, as we have this check
> within regulator/core:

>        if (!ops->list_voltage || selector >= rdev->desc->n_voltages)
>                 return -EINVAL;

> This will also potentially make some code to iterate over regulator
> voltages for ~1.5M times. I still don't think adding list_voltage for
> the SMPS regulators makes any sense, unless either the API for
> regulator_list_voltage is changed, or we change the control for these
> regulators completely from set_voltage() based to set_voltage_sel()
> based implementation.

Well, the important thing here is to fill in something useful for the
returned selector rather than just leaving it undefined.  Providing a
list_voltage() would be nice and make things more robust.
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