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Date: Tue, 23 Feb 2016 21:38:35 +0000
From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Simon Guinot <simon.guinot@sequanux.org>, Alan Cox <alan@linux.intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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        Vincent Donnefort <vdonnefort@gmail.com>, Yoann Sculo <yoann@sculo.fr>,
        Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH] kernel/resource.c: fix muxed resource handling in
 __request_region()
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> > IORESOURCE_MUXED is a convenient way to deal with that. For some code
> > examples you can look at the superio_* functions in the IT87 drivers:
> > gpio/gpio-it87.c, hwmon/it87.c and watchdog/it87_wdt.c.
> > 
> > I am not aware of any other users for IORESOURCE_MUXED.
> > 
> > Let me know how you want to go and if you need my help.  
> 
> I'd be happy if you proposed a patch.  It would also be nice if we could
> somehow more formally limit the MUXED usage to these super I/O devices,
> just so other users don't get into trouble thinking it's more general
> than it is.

Today I think the problem wouldn't exist. We'd tell the authors of the
drivers to create an mfd or similar to manage the resources and load the
appropriate extra goodies.

Alan