linux-kernel - Re: [PATCH v2] base: isa: Remove X86

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Date:	Wed, 27 Jan 2016 11:07:10 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	William Breathitt Gray <vilhelm.gray@...il.com>
cc:	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] base: isa: Remove X86_32 dependency

On Fri, 22 Jan 2016, William Breathitt Gray wrote:
> Many motherboards utilize a LPC to ISA bridge in order to decode
> ISA-style port-mapped I/O addresses. This is particularly true for
> embedded motherboards supporting the PC/104 bus (a bus specification
> derived from ISA).
> 
> These motherboards are now commonly running 64-bit x86 processors. The
> X86_32 dependency should be removed from the ISA bus configuration
> option in order to support these newer motherboards.
> 
> A new config option, CONFIG_ISA_BUS, is introduced to allow for the
> compilation of the ISA bus driver independent of the CONFIG_ISA option.
> Devices which communicate via ISA-compatible buses can now be supported
> independent of the dependencies of the CONFIG_ISA option.
> 
> Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>