Re: [PATCH 1/3] serial/imx: add device tree support

From: Grant Likely
Date: Tue Jun 21 2011 - 15:03:16 EST

On Tue, Jun 21, 2011 at 12:53 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> 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.

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