Date: Thu, 30 Jul 2015 11:52:33 +0100
From: Mark Brown <broonie@kernel.org>
To: Michal Suchanek <hramrach@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        David Woodhouse <dwmw2@infradead.org>,
        Brian Norris <computersforpeace@gmail.com>,
        Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <k.kozlowski@samsung.com>,
        Padmavathi Venna <padma.kvr@gmail.com>,
        Boris BREZILLON <boris.brezillon@free-electrons.com>,
        devicetree <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        MTD Maling List <linux-mtd@lists.infradead.org>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
        linux-spi <linux-spi@vger.kernel.org>
Message-ID: <20150730105233.GO11162@sirena.org.uk>
References: <cover.1438170519.git.hramrach@gmail.com>
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 <20150729140046.GB11082@sirena.org.uk>
 <CAOMqctTZVET=U=2o65HpWSm4W660XZtYYbBND2k4u9CnfjfMhQ@mail.gmail.com>
 <20150729171613.GI11162@sirena.org.uk>
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 <20150729184043.GL11162@sirena.org.uk>
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Subject: Re: [RFC PATCH 2/2] dt: spi: s3c64xx: add compatible to
 controller-data
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On Thu, Jul 30, 2015 at 10:24:37AM +0200, Michal Suchanek wrote:

> So my suggestion is to

> 1) search of ofpart subnode in mtd node. If present read address and
> reg from it and search partitions as subnodes of the ofpart node. In
> this case unknown nodes can cause error.

> 2) failing that issue a warning and try to parse ofpart partitions
> from the mtd node itself. In this case unknown nodes cannot cause
> error for compatibility with other drivers including the already
> exisitn s3c64xx controller-data node.

> The parser code can be the same for both cases and only operate on
> different node with a flag to reject unknown subnodes or not.

That seems reasonable to me.

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