From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pawel Moll <pawel.moll@arm.com>
Subject: Re: [PATCH 2/5] char: tile-srom: Remove reference to platform_bus
Date: Fri, 08 Aug 2014 17:39:00 +0100
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To: Chris Metcalf <cmetcalf@tilera.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Olof Johansson <olof@lixom.net>, Stephen Warren <swarren@wwwdotorg.org>, Catalin Marinas <Catalin.Marinas@arm.com>, "paul@pwsan.com" <paul@pwsan.com>, Arnd Bergmann <arnd@arndb.de>, Peter De Schrijver <pdeschrijver@nvidia.com>, "arm@kernel.org" <arm@kernel.org>, "linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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On Fri, 2014-08-08 at 17:34 +0100, Pawel Moll wrote:
> On Tue, 2014-08-05 at 21:08 +0100, Chris Metcalf wrote:
> > >> In addition, we also have user binaries
> > >> in the wild that know to look for /sys/devices/platform/srom/ pa=
ths,
> > >> so I'm pretty reluctant to change this path without good reason.
> > > So what is the srom class for then if not for device discovery? A=
nd why
> > > do they look for them in the first place? To get relevant charact=
er
> > > device's data, if I understand it right?
> > >
> > > Maybe you could just register a simple "proper" platform device f=
or all
> > > the sroms and then hang the class devices from it? I can type som=
e code
> > > doing this if it sound reasonably?
> >=20
> > I'm not sure exactly what you mean by device discovery here. =20

(sorry, sent too early...)

By "device discovery" I meant the way you find the way in your devices
in /sysfs. You seem to be traversing /sys/devices/... tree, while you'v=
e
got almost direct access to them through /sys/class/srom and you can (I
believe, correct me if I'm wrong, Greg) rely on this path being stable.

Pawe=C5=82