Re: [PATCH] mmc: renesas_sdhi: add checks for pinctrl_lookup_state

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HI Ulf,

> > Well, I don't like to bail out because this error is not fatal for basic
> > operations. How about releasing priv->pinctrl again with an additional
> > warning that pinctrl settings are broken and will prevent 1.8v modes?
> >
> > Opinions?
> 
> Hmm, from a mmc driver probe point of view, I don't quite share this approach.
> 
> I would rather fail as it forces the DTB to be corrected immediately,
> rather than trusting some developer to look at a warning in a log. The
> point is, in such a case it may never get fixed, if the product is
> shipped with the wrong DTB.

I could agree to this arguement, iff the only way pinctrl_select fails
is a DT misconfiguration. I am not sure if this is true right now, and
we can't be sure about the future. Or?

> My concern at this point is rather to break existing DTBs, but it
> seems that should not be an issue, right?

AFAIK not for the upstream ones, I don't know the customer ones.

I still prefer to not bail out.

Kind regards,

   Wolfram

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