linux-kernel - Re: [PATCH v5] gpio: pcf857x: Add OF support

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Message-ID: <CACRpkda=pZ6xQ2XJke=MBLiH_DAS8CXW+JOZ856ohGZi+fOCzA@mail.gmail.com>
Date:	Thu, 29 Aug 2013 20:24:32 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	Tomasz Figa <t.figa@...sung.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Tomasz Figa <tomasz.figa@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Archit Taneja <archit@...com>,
	Sylwester Nawrocki <sylvester.nawrocki@...il.com>,
	Linux-OMAP <linux-omap@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>
Subject: Re: [PATCH v5] gpio: pcf857x: Add OF support

On Wed, Aug 28, 2013 at 1:58 PM, Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
> On Tuesday 27 August 2013 19:18:55 Wolfram Sang wrote:
>> > The driver should support the same chip models reardless of whether it's
>> > used with or without DT. If an entry in the OF table has no corresponding
>> > entry in the I2C table I would consider that as a driver bug.
>>
>> Linus Walleij posted a patch to support DT only probing, but too many
>> side-effects showed up. Some were fixable (probe regressions) and some
>> need more work, if feasible at all. Most prominent is that runtime
>> instantiation of i2c slaves currently needs an entry in the i2c table.
>
> Linus, I'd like to get this in v3.12 if it's not too late. Could you please
> provide your input ?

Provided some input on the v4 version, due to being a bit overloaded
my patch queue is overloaded...

Yours,
Linus Walleij
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