From: Ingo Molnar <mingo@kernel.org>
To: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
gregkh@linuxfoundation.org, x86@kernel.org,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
alsa-devel@alsa-project.org
Subject: Re: [PATCH 0/4] Decouple X86_32 dependency from the ISA Kconfig option
Date: Wed, 13 Apr 2016 16:38:38 +0200 [thread overview]
Message-ID: <20160413143838.GD5867@gmail.com> (raw)
In-Reply-To: <20160413121515.GA23870@sophia>
* William Breathitt Gray <vilhelm.gray@gmail.com> wrote:
> On Wed, Apr 13, 2016 at 09:26:02AM +0200, Ingo Molnar wrote:
> >What's the practical motivation of this? What exact hardware is this for?
> >
> >Thanks,
> >
> > Ingo
>
> The PC/104 bus is equivalent to the ISA bus regarding software
> communication. Many small form factor systems have a PC/104 bus where
> PC/104 cards may be stacked. Nowadays, these systems are commonly
> running 64-bit processors such as the Intel Atom.
>
> I would like to utilize the ISA bus driver to support these PC/104
> devices (see http://lkml.org/lkml/2016/4/7/418), but the ISA
> configuration option has an arbitrary X86_32 dependency. Decoupling the
> X86_32 dependency from the ISA configuration option will allow these
> PC/104 drivers to build for 64-bit architectures.
>
> The existing kernel drivers which I intend to utilize the ISA bus driver
> in a X86_64 architecture for PC/104 support are the ACCES 104-DIO-48E
> GPIO driver, the ACCES 104-IDI-48 GPIO driver, the ACCES 104-IDIO-16
> GPIO driver, and the Apex Embedded Systems STX104 DAC driver. I have
> several more PC/104 devices for which I wish to write drivers, but I
> would like to resolve this ISA bus driver situation before submitting
> new code.
Ah, ok, so it's for enabling real hardware, not just a cleanup, right? You might
want to put that info into the boilerplate mail or so.
I'm perfectly fine with all the patches that touch x86 code:
Acked-by: Ingo Molnar <mingo@kernel.org>
I suppose you'd like to have these in the driver tree, all in one place?
Thanks,
Ingo
next prev parent reply other threads:[~2016-04-13 14:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-11 13:25 [PATCH 0/4] Decouple X86_32 dependency from the ISA Kconfig option William Breathitt Gray
2016-04-11 13:25 ` [PATCH 1/4] pnp: pnpbios: Add explicit X86_32 dependency to PNPBIOS William Breathitt Gray
2016-04-22 23:51 ` Rafael J. Wysocki
2016-04-23 14:53 ` William Breathitt Gray
2016-05-01 15:52 ` William Breathitt Gray
2016-04-11 13:25 ` [PATCH 2/4] sound: isa: sscape: Use correct format identifier for size_t William Breathitt Gray
2016-04-11 13:54 ` [alsa-devel] " Takashi Iwai
2016-04-11 13:25 ` [PATCH 3/4] scsi: ultrastor: Use correct format identifier for kernel pointer William Breathitt Gray
2016-04-11 13:25 ` [PATCH 4/4] isa: Remove the ISA_BUS Kconfig option William Breathitt Gray
2016-04-13 7:26 ` [PATCH 0/4] Decouple X86_32 dependency from the ISA " Ingo Molnar
2016-04-13 12:15 ` William Breathitt Gray
2016-04-13 14:38 ` Ingo Molnar [this message]
2016-04-13 14:48 ` William Breathitt Gray
2016-04-13 15:18 ` Greg KH
2016-05-01 16:17 ` William Breathitt Gray
2016-05-01 21:25 ` Greg KH
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160413143838.GD5867@gmail.com \
--to=mingo@kernel.org \
--cc=alsa-devel@alsa-project.org \
--cc=gregkh@linuxfoundation.org \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=vilhelm.gray@gmail.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).