Re: [PATCH v5 05/12] dt: bindings: Add bindings for Marvell Xenon SD Host Controller

From: Gregory CLEMENT
Date: Fri Jan 27 2017 - 12:31:56 EST

Hi Ulf,

On ven., janv. 27 2017, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:

>> 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:

>>> 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.


> Kind regards
> Uffe

Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.