Hi Ulf,
 
 On ven., janv. 27 2017, Ulf Hansson [off-list ref] wrote:

quoted

But I am curious to know why do you think we could use it without any
need. Are you aware of some abuse of this property?

Yes.

Actually I was hopping that you point some examples :)

But as you point mmc-ddr-3_3v I found my answers here:
http://www.spinics.net/lists/linux-mmc/msg38602.html

quoted

quoted

Perhaps you can elaborate exactly why it makes sense for your case. Or
perhaps we already discussed this, in either case, please re-fresh my
mind.

For instance we need it now on the 7040DB board which does not have the
1.8V signal voltage available.

It it's better to describe what the controller/board support, instead
of what it doesn't.

I think you should be able to use other existing mmc DT bindings
(perhaps also you need the brand new "mmc-ddr-3_3v"), instead of the
"no-1-8-v".

OK I will try with this one. And if it works, I wonder if it worth
mentioning it as it is also part of the mmc binding.

Gregory

Kind regards
Uffe

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com