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Message-ID: <1290638773.14502.12.camel@concordia>
Date: Thu, 25 Nov 2010 09:46:13 +1100
From: Michael Ellerman <michael@...erman.id.au>
To: Scott Wood <scottwood@...escale.com>
Cc: Timur Tabi <timur@...escale.com>, Greg KH <gregkh@...e.de>,
Arnd Bergmann <arnd@...db.de>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Stuart Yoder <stuart.yoder@...escale.com>,
devicetree-discuss@...r.kernel.org,
Grant Likely <grant.likely@...retlab.ca>
Subject: Re: How do I choose an arbitrary minor number for my tty device?
On Wed, 2010-11-24 at 12:08 -0600, Scott Wood wrote:
> On Wed, 24 Nov 2010 21:23:47 +1100
> Michael Ellerman <michael@...erman.id.au> wrote:
> > > It would be nice if platform devices that are created from device tree
> > > nodes included a link to the corresponding /proc/device-tree node in
> > > their sysfs node.
> >
> > It's not a link, but the OF path is in devspec, so you can work it out
> > fairly easily.
>
> Hmm, I see a "devspec" in PCI devices, but not in devtree-probed
> platform devices. of_bus_type_init isn't being called from anywhere
> but the ibmebus code. It looks like this was a casualty of merging
> of_platform with platform (commit eca3930163ba8884060ce9d9ff5ef0d9b7c7b00f).
Ah crud, yeah I was looking at an old kernel.
That seems like a regression, but seemingly no one has complained so
perhaps it doesn't matter in practice. It was certainly a nice feature
though.
cheers
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