linux-kernel - Re: [PATCH v10] gpio: Add GPIO support for the ACCES 104-IDIO-16

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Message-ID: <20151027142343.GI1548@lahna.fi.intel.com>
Date:	Tue, 27 Oct 2015 16:23:43 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	William Breathitt Gray <vilhelm.gray@...il.com>,
	Andreas Bofjall <andreas@...onk.org>,
	Simon Guinot <simon.guinot@...uanux.org>,
	Diego Elio Pettenò <flameeyes@...meeyes.eu>,
	Daniel Krueger <daniel.krueger@...tec-electronic.com>,
	Bruno Randolf <br1@...fach.org>,
	Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v10] gpio: Add GPIO support for the ACCES 104-IDIO-16

On Tue, Oct 27, 2015 at 11:06:58AM +0100, Linus Walleij wrote:
> > +menu "ISA GPIO drivers"
> > +
> > +config GPIO_104_IDIO_16
> > +       tristate "ACCES 104-IDIO-16 GPIO support"
> > +       depends on X86
> > +       help
> > +         Enables GPIO support for the ACCES 104-IDIO-16 family.
> > +
> > +endmenu
> 
> I have five other drivers using port-based I/O:
> 
> gpio-f7188x.c
> gpio-it87.c
> gpio-sch.c
> gpio-sch311x.c
> gpio-ts5500.c
> 
> Do you think it makes sense to move all of these in under
> the "ISA GPIO drivers" menu as well? I guess they all require
> ISA after all.
> 
> (Added their maintainers to the To: line so I can get some input
> on this.)

Not all of them actually require ISA. For example gpio-sch is part of an
MFD device which is a PCI device. PCI bus also has notion of I/O ports.
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