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Message-ID: <BANLkTikHTSgowpUhMCcOMXk_oQd4Ue7S3Q@mail.gmail.com>
Date:	Tue, 21 Jun 2011 13:02:48 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Mitch Bradley <wmb@...mworks.com>, patches@...aro.org,
	netdev@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	Jason Liu <jason.hui@...aro.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Jeremy Kerr <jeremy.kerr@...onical.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawn.guo@...escale.com>
Subject: Re: [PATCH 1/3] serial/imx: add device tree support

On Tue, Jun 21, 2011 at 12:53 PM, Russell King - ARM Linux
<linux@....linux.org.uk> wrote:
> On Tue, Jun 21, 2011 at 12:42:14PM -0600, Grant Likely wrote:
>> On Tue, Jun 21, 2011 at 12:32 PM, Mitch Bradley <wmb@...mworks.com> wrote:
>> > I wonder if it makes sense to create a new device node "/linux-devices" to express a desired mapping from device nodes to /dev entries?  The properties could be the names of device special files and the values the corresponding node phandles.
>>
>> I've been trying /really/ hard to avoid doing something like that
>> because a lot of the time the desired Linux dev name is a
>> implementation detail, and a potentially unstable one at that.  If
>> Linux requires certain devices to have certain names because that is
>> how it hooks up clocks
>
> As I keep on saying, we don't _have_ to have to match on device name.
> If DT can come up with a better way to bind a clock to a particular
> device/connection name then DT can provide its own clk_get()
> implementation which does that.

Sorry, I overstated the situation.  My point is only that I don't want
encode how Linux currently views the world into the DT, because
implementation details can and do change.

g.
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