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

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Date:	Mon, 5 Oct 2015 19:11:09 -0400
From:	William Breathitt Gray <vilhelm.gray@...il.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>
Cc:	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] GPIO: Add GPIO support for the ACCES 104-IDIO-16

On 10/05/2015 06:47 PM, Bjorn Helgaas wrote:
> I'm really not familiar with PC/104, but wikipedia claims it only uses
> ISA.  Apparently PCI/104-Plus, PCI-104, PCI/104-Express, and PCIe/104
> *do* have PCI and/or PCIe, but it looks like the base PC/104 does not.
> 
> Bjorn
> 

This is correct: PC/104 is only ISA. The ACCES 104-IDIO-16 board is a
PC/104 stackable GPIO board, whose port address is configured via
physical jumper switches on the board; it is not "hotpluggable." For
this reason, the CONFIG_104_IDIO_16_BASE option should be set to the
same port address physically configured on the board.

- William
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