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Date: Mon, 3 Sep 2012 13:58:04 +0200
Message-ID: <CACRpkdZ5VFhrbONy=0K5MFh4e6BDFckq0yqzjQ2QkW9MgwKqBg@mail.gmail.com>
Subject: Re: [PATCH 3/3] i2c: nomadik: Add Device Tree support to the Nomadik
 I2C driver
From: Linus Walleij <linus.walleij@linaro.org>
To: Lee Jones <lee.jones@linaro.org>, Rob Herring <rob.herring@calxeda.com>,
        devicetree-discuss@lists.ozlabs.org,
        Stephen Warren <swarren@nvidia.com>
Cc: Wolfram Sang <w.sang@pengutronix.de>, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, STEricsson_nomadik_linux@list.st.com,
        linus.walleij@stericsson.com, arnd@arndb.de, linux-i2c@vger.kernel.org
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On Mon, Sep 3, 2012 at 1:32 PM, Lee Jones <lee.jones@linaro.org> wrote:

> No, this is wrong. Platform data should not override DT.
>
> If DT is enabled and passed, it should have highest priority.

Oh is that so.

Rob: do we have a clear consensus on this? Then we should document
it in Documentation/devicetree/usage-model.txt.

(That document isn't part of the binding I believe, so we could define
Linux-specific behaviours in it.)

I always thought it was the other way around, that pdata took priority.

Usecase: hardcoded bootloader passer erroneous DT to a platform.
No way out. What to do? Override with pdata.

Yours,
Linus Walleij