Re: [PATCH V3 1/3] dt-bindings: mmc: Supply max load for mmc supplies

[Mark Brown]

On Tue, Jun 09, 2020 at 05:02:16PM -0600, Rob Herring wrote:
> On Tue, Jun 02, 2020 at 04:17:54PM +0530, Veerabhadrarao Badiganti wrote:

> > +  vmmc-supply-max-microamp:
> > +    description: Maximum load for the card power.

> > +  vqmmc-supply-max-microamp:
> > +    description: Maximum load for the bus IO line power.

> By a 'common regulator property' I meant documented with regulator 
> binding like *-supply, not common to MMC. How is MMC special?

TBH I'm surprised that these aren't defined by the MMC spec or by the ID
information from the part we find connected - I'd not expect the board
to be defining these at all.

> Thinking about this some more, what's wrong with the max current in the 
> regulator nodes? I suppose you could have more than one load and need to 
> define the loads separately?

One of the bigger reasons to think about the loads would be to
dynamically configure the mode the regulator is in to go into a more
efficient mode when some of the devices attached to it are turned off.

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