linux-kernel - Re: [PATCHv5 0/3] Introduce the /proc/socinfo and use it to export OMAP data

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Message-ID: <20110216115729.GA29817@besouro.research.nokia.com>
Date:	Wed, 16 Feb 2011 13:57:29 +0200
From:	Eduardo Valentin <eduardo.valentin@...ia.com>
To:	ext Linus Walleij <linus.walleij@...aro.org>
Cc:	Eduardo Valentin <eduardo.valentin@...ia.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Linux-OMAP <linux-omap@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	ext Tony Lindgren <tony@...mide.com>,
	ext Kevin Hilman <khilman@...prootsystems.com>,
	Peter De-Schrijver <Peter.De-Schrijver@...ia.com>,
	santosh.shilimkar@...com, Ambresh <a0393775@...com>,
	felipe.balbi@...ia.com, Jouni Hogander <jouni.hogander@...ia.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Lee Jones <Lee.Jones@...aro.org>,
	maxime.coquelin-nonst@...ricsson.com,
	Jonas �berg <jonas.aberg@...ricsson.com>,
	ext Nishanth Menon <nm@...com>
Subject: Re: [PATCHv5 0/3] Introduce the /proc/socinfo and use it to export
 OMAP data

Hello Linus,

On Tue, Feb 15, 2011 at 01:58:00PM +0100, ext Linus Walleij wrote:
> 2010/5/11 Eduardo Valentin <eduardo.valentin@...ia.com>:
> 
> > Here is the version 5 of the change to export OMAP data to userspace
> > (name, revision, id code, production id and die id).
> >
> > Basically, this version is still attempting to create a new file under /proc.
> > It is the /proc/socinfo, which should be used to export bits which are SoC specific
> > (not CPU related, nor machine related).
> >
> > So, differences between previous version are:
> > - merged patch 02/04 with 03/04 to avoid compilation breakages.
> > - simplified the seq_file usage by using the single_open and single_release functions
> > - exported a function to register a seq_operation .show callback
> > - adapted the changes accordingly
> >
> > As usual, comments are welcome.
> 
> Eduardo, what has happened to this patchset?

Got forgotten :-(. Unfortunately I didn't pushed it hard enough.

> 
> Now we need something similar for arch/arm/mach-ux500 and I was sort of
> hoping that this infrastructure would be in place already... wrong I was.

Right.

> 
> Do you want help in picking it up and try to polish it up?

Yeah, but it would need a refactoring. IIRC, result of last discussion was that
we should not mess with /proc. So, maybe moving back to something under sysfs.
Perhaps /sys/devices/soc or so?

> 
> Yours,
> Linus Walleij

-- 
Eduardo Valentin
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