From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH v1 3/3] gpiolib: append SFI helpers for GPIO API
Date: Tue, 10 Dec 2013 17:31:25 +0200
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To: David Cohen <david.a.cohen@linux.intel.com>
Cc: Alex Courbot <acourbot@nvidia.com>, "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>, Linus Walleij <linus.walleij@linaro.org>, Mika Westerberg <mika.westerberg@linux.intel.com>, Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>, Len Brown <lenb@kernel.org>

On Tue, 2013-12-10 at 07:21 -0800, David Cohen wrote:
> Hi,
> 
> [snip]
> 
> >> I don't know anything about SFI GPIOs, how they are defined, where their 
> >> name comes from, and how they are used so my vision may be incomplete. 
> >> But AFAICT it all comes down to one of these two scenarios:
> >>
> >> 1) SFI GPIOs are only used in platform code -> using their pin name is 
> >> ok, device argument should be assumed to be NULL for their matching
> > Let's stick to this.
> >
> >> 2) SFI GPIOs are also consumed by device drivers -> you need a way to 
> >> match a (device, con_id) pair to your SFI GPIOs so they can be matched 
> >> exactly and through the names drivers will request.
> > Mostly unlikely we go this way. It would mean we don't need SFI at all.
> 
> I'm currently upstreaming Intel-MID's SFI users. This is a forbidden
> situation which I'd change before submit the patch.

I'm sorry I didn't get this. You mean we have to have another mapping,
or you agree with system-global GPIOs in SFI case?

> 
> Br, David Cohen

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy