From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@linux.intel.com>
Subject: Re: [PATCH] kernel/resource.c: fix muxed resource handling in
 __request_region()
Date: Mon, 22 Feb 2016 13:49:12 +0000
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To: Jesse Barnes <jbarnes@virtuousgeek.org>, Linus Torvalds <torvalds@linux-foundation.org>
Cc: Vincent Pelletier <plr.vincent@gmail.com>, Simon Guinot <simon.guinot@sequanux.org>, Giel van Schijndel <me@mortis.eu>, linux-gpio@vger.kernel.org, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Vincent Donnefort <vdonnefort@gmail.com>, Yoann Sculo <yoann@sculo.fr>

> we have some good alternatives in the form of bus and platform
> drivers that
> can manage the appropriate serialization and keep things from
> stomping
> on one another.

It's not used much, especially nowdays. The use case is basically multi
I/O chips on the ISA/LPC bus with magic shared config register ports.

We have sufficiently few of those we could give muxed the boot and
special case them if preferred.

Alan