Re: [PATCH 1/2] devicetree: power: add bindings for GPIO-driven power switches

[Rob Herring]

On Wed, Dec 14, 2016 at 10:58 AM, Bartosz Golaszewski
<bgolaszewski@xxxxxxxxxxxx> wrote:
> 2016-12-13 20:27 GMT+01:00 Rob Herring <robh@xxxxxxxxxx>:
>> On Sun, Dec 11, 2016 at 11:21:44PM +0100, Bartosz Golaszewski wrote:
>>> Some boards are equipped with simple, GPIO-driven power load switches.
>>> An example of such ICs is the TI tps229* series.
>>
>> How is this different than a GPIO regulator? The input and output
>> voltages just happen to be the same. I could be convinced this is
>> different enough to have a different compatible, but it somewhat seems
>> you want to use this for IIO, so you are creating a different binding
>> for that usecase.
>>
>
> It's more of a fixed regulator I suppose. Do you mean adding a new
> compatible to the fixed-regulator binding (e.g. "gpio-power-switch" or
> "simple-power-switch") and then providing an iio driver for toggling
> the switch?

Yes, at least the first part. I view the switch as just a more
specific subtype of a fixed-regulator. Whether an IIO driver is a
separate discussion which is happening.

Rob

P.S. I really don't like compatibles with "simple".