Re: [PATCH 2/9] dt-bindings: i2c: qcom-cci: add description of a vbus-supply property

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On Thu, Feb 10, 2022 at 08:32:09PM +0300, Dmitry Baryshkov wrote:
> On Thu, 10 Feb 2022 at 18:45, Mark Brown <broonie@xxxxxxxxxx> wrote:

> > I would hope it's a temporary thing given the namespace collision
> > issues...

> Which collision? CCI doesn't have a separate vbus power input (and
> probably never will).

That "probably" there is doing some work, and if you're doing something
at the I2C core level (as it seems should be done) it needs to cope with
all possible controllers and devices.

> > Do these controllers actually have a supply called vbus?

> No. It's a separate entity, a regulator-controller pull-up for the bus.
> So far we'd like to hear better suggestions. Using regulator-always-on
> doesn't sound like a good idea, it will increase unnecessary power
> drain.

Please see my suggestions elsewhere in the thread.

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