[PATCH v2 01/22] [HACK] of: dev_node has struct device pointer

[Thierry Reding]

On Tue, Jul 16, 2013 at 04:57:03PM -0600, Stephen Warren wrote:
> On 07/05/2013 04:44 AM, Hiroshi Doyu wrote:
> > To prevent of_platform_populate() from trying to populate duplicate
> > devices if a device has been already populated.
> 
> You need to send drivers/of patches to the DT maintainer and
> devicetree-discuss mailing list.
> 
> > Signed-off-by: Hiroshi Doyu <hdoyu at nvidia.com>
> > ---
> > Need to take care of early_platform_devices, or alternative solution.
> 
> I assume that's a TODO item... Are you planning on fleshing out this
> patch to address that issue?

There was some more discussion about it, which can be found in the
following thread:

	https://lists.ozlabs.org/pipermail/devicetree-discuss/2013-June/036934.html

That's one of the last messages and it should have most of the
background. If not you may have to walk up the thread for more context.
In a nutshell I raised the question as to why we can't simply call
of_platform_populate() earlier and side-step all the workarounds that
have found their way into the kernel to side-step the issue of their not
being a struct device associated with the struct device_node.

If of_platform_populate() can be made to run early, then we can restore
a whole lot of consistency in how "early" drivers on an OF kernel work.

Thierry
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