Subject: Re: How do I choose an arbitrary minor number for my tty device?
From: Michael Ellerman <michael@ellerman.id.au>
Reply-To: michael@ellerman.id.au
To: Scott Wood <scottwood@freescale.com>
Cc: Timur Tabi <timur@freescale.com>, Greg KH <gregkh@suse.de>,
        Arnd Bergmann <arnd@arndb.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Stuart Yoder <stuart.yoder@freescale.com>,
        devicetree-discuss@vger.kernel.org,
        Grant Likely <grant.likely@secretlab.ca>
In-Reply-To: <20101124120818.7951bcb4@udp111988uds.am.freescale.net>
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	 <20101118112146.3275eb08@udp111988uds.am.freescale.net>
	 <4CE5657D.8060105@freescale.com>
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Date: Thu, 25 Nov 2010 09:46:13 +1100
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On Wed, 2010-11-24 at 12:08 -0600, Scott Wood wrote:
> On Wed, 24 Nov 2010 21:23:47 +1100
> Michael Ellerman <michael@ellerman.id.au> wrote:

> > > It would be nice if platform devices that are created from device tre=
e
> > > nodes included a link to the corresponding /proc/device-tree node in
> > > their sysfs node.
> >=20
> > It's not a link, but the OF path is in devspec, so you can work it out
> > fairly easily.
>=20
> 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 eca3930163ba8884060ce9d9ff5ef0d9b7c7b00=
f).

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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