From: Grant Likely <grant.likely@secretlab.ca>
To: Jason Kridner <jkridner@beagleboard.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Russ Dill <Russ.Dill@ti.com>,
balbi@ti.com, Pantelis Antoniou <panto@antoniou-consulting.com>,
"Cousson, Benoit" <b-cousson@ti.com>,
Tony Lindgren <tony@atomide.com>,
linux-kernel@vger.kernel.org,
Koen Kooi <koen@dominion.thruhere.net>,
Matt Porter <mporter@ti.com>,
linux-omap@vger.kernel.org, Kevin Hilman <khilman@ti.com>,
Paul Walmsley <paul@pwsan.com>
Subject: Re: [PATCH 0/3] capebus moving omap_devices to mach-omap2
Date: Mon, 5 Nov 2012 01:05:39 +0000 [thread overview]
Message-ID: <CACxGe6uKag_7kKvqKPHa_3W_F3=HLLR9SmyTo8vHRYN3VU+XnQ@mail.gmail.com> (raw)
In-Reply-To: <CA+T6QPkWLXx6-Bh-4VdsdoHypHNkJ4hTdkk-rqUEyGEswpW6fQ@mail.gmail.com>
On Fri, Nov 2, 2012 at 4:07 PM, Jason Kridner <jkridner@beagleboard.org> wrote:
>> Take a look at arch/x86/platform/mrst/mrst.c. It's a specific example of
>> a platform which parses tables and attaches devices to the right physical
>> bus in a manner they can be reliably probed even when the device has no
>> sane autodetect.
>
> I know I *am* the slow person in the room, but doesn't this approach
> require the code to be compiled into the kernel to support the devices
> ahead of time? While I think it might be reasonable to have hardware
> developers provide DT fragments in their EEPROMs, there's no way to
> get them to submit code patches in order to get their hardware to
> work. They need to ship hardware that works with pre-existing
> software, since there will be hundreds of boards created by people
> with little to no previous Linux experience (akin to Arduino). I seem
> to be missing how that approach would get us there.
If it is truly new hardware, then there really is no way around them
either a) submitting new kernel drivers or b) driving them from
userspace.
If it is devices with existing drivers populated onto new custom cape
boards, then the DT fragment approach should be sufficient for
populating them into the Linux driver model. (assuming of course those
drivers are already compiled into the kernel)
g.
next prev parent reply other threads:[~2012-11-05 1:06 UTC|newest]
Thread overview: 107+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-01 15:17 [PATCH 0/3] capebus moving omap_devices to mach-omap2 Pantelis Antoniou
2012-10-31 17:52 ` Tony Lindgren
2012-10-31 18:04 ` Pantelis Antoniou
2012-10-31 18:09 ` Tony Lindgren
2012-10-31 18:24 ` Pantelis Antoniou
2012-10-31 19:55 ` Benoit Cousson
2012-10-31 19:55 ` Benoit Cousson
2012-10-31 20:12 ` Pantelis Antoniou
2012-10-31 20:12 ` Pantelis Antoniou
2012-10-31 21:26 ` Tony Lindgren
2012-10-31 21:36 ` Pantelis Antoniou
2012-10-31 21:43 ` Tony Lindgren
2012-10-31 22:00 ` Pantelis Antoniou
2012-10-31 22:16 ` Tony Lindgren
2012-10-31 22:14 ` Felipe Balbi
2012-10-31 22:14 ` Felipe Balbi
2012-11-01 7:02 ` Pantelis Antoniou
2012-11-01 7:02 ` Pantelis Antoniou
2012-11-01 10:23 ` Cousson, Benoit
2012-11-01 10:23 ` Cousson, Benoit
2012-11-01 10:39 ` Pantelis Antoniou
2012-11-01 10:39 ` Pantelis Antoniou
2012-11-01 11:04 ` Felipe Balbi
2012-11-01 11:04 ` Felipe Balbi
2012-11-01 11:26 ` Pantelis Antoniou
2012-11-01 11:26 ` Pantelis Antoniou
2012-11-01 12:40 ` Felipe Balbi
2012-11-01 12:40 ` Felipe Balbi
2012-11-01 12:57 ` Pantelis Antoniou
2012-11-01 12:57 ` Pantelis Antoniou
2012-11-01 13:16 ` Felipe Balbi
2012-11-01 13:16 ` Felipe Balbi
2012-11-01 13:35 ` Pantelis Antoniou
2012-11-01 13:35 ` Pantelis Antoniou
2012-11-01 13:51 ` Alan Cox
2012-11-01 13:51 ` Alan Cox
2012-11-01 13:59 ` Pantelis Antoniou
2012-11-01 13:59 ` Pantelis Antoniou
2012-11-01 22:05 ` Felipe Balbi
2012-11-01 22:05 ` Felipe Balbi
2012-11-01 23:49 ` Russ Dill
2012-11-02 8:57 ` Felipe Balbi
2012-11-02 8:57 ` Felipe Balbi
2012-11-02 9:42 ` Russ Dill
2012-11-02 10:39 ` Koen Kooi
2012-11-02 10:39 ` Koen Kooi
2012-11-02 11:00 ` Felipe Balbi
2012-11-02 11:00 ` Felipe Balbi
2012-11-02 16:44 ` Russ Dill
2012-11-02 11:21 ` Alan Cox
2012-11-02 12:32 ` Pantelis Antoniou
2012-11-05 0:37 ` Grant Likely
2012-11-05 15:37 ` Pantelis Antoniou
2012-11-05 15:37 ` Pantelis Antoniou
2012-11-05 19:10 ` Grant Likely
2012-11-05 19:54 ` Pantelis Antoniou
2012-11-05 19:54 ` Pantelis Antoniou
2012-11-05 20:14 ` Grant Likely
2012-11-05 22:59 ` Joel A Fernandes
2012-11-05 23:58 ` Grant Likely
2012-11-05 23:58 ` Grant Likely
2012-11-06 3:06 ` Joel A Fernandes
2012-11-06 8:14 ` Pantelis Antoniou
2012-11-06 8:14 ` Pantelis Antoniou
2012-11-06 11:16 ` Grant Likely
2012-11-06 13:54 ` Pantelis Antoniou
2012-11-06 13:54 ` Pantelis Antoniou
2012-11-02 16:07 ` Jason Kridner
2012-11-02 16:07 ` Jason Kridner
2012-11-02 16:28 ` Alan Cox
2012-11-05 1:05 ` Grant Likely [this message]
2012-11-01 11:26 ` Cousson, Benoit
2012-11-01 11:26 ` Cousson, Benoit
2012-11-01 11:39 ` Pantelis Antoniou
2012-11-01 11:39 ` Pantelis Antoniou
2012-11-01 12:00 ` Koen Kooi
2012-11-01 12:00 ` Koen Kooi
2012-11-01 13:06 ` Felipe Balbi
2012-11-01 13:06 ` Felipe Balbi
2012-11-01 13:33 ` Koen Kooi
2012-11-01 13:33 ` Koen Kooi
2012-11-02 8:15 ` Cousson, Benoit
2012-11-02 8:15 ` Cousson, Benoit
2012-11-02 8:43 ` Pantelis Antoniou
2012-11-03 8:23 ` Kevin Hilman
2012-11-05 0:22 ` Grant Likely
2012-11-05 0:22 ` Grant Likely
2012-11-05 13:25 ` Pantelis Antoniou
2012-11-05 13:25 ` Pantelis Antoniou
2012-11-05 14:34 ` Grant Likely
2012-11-05 15:34 ` Tony Lindgren
2012-11-05 15:34 ` Tony Lindgren
2012-11-05 15:56 ` Rob Herring
2012-11-05 15:56 ` Rob Herring
2012-11-05 19:40 ` Grant Likely
2012-11-01 15:18 ` [PATCH 1/3] omap-device: Remove __init from omap_device_build family functions Pantelis Antoniou
2012-11-01 15:18 ` [PATCH 2/3] da8xx-dt: Create da8xx DT adapter device Pantelis Antoniou
2012-11-01 14:36 ` Tomi Valkeinen
2012-11-01 14:38 ` Pantelis Antoniou
2012-11-01 15:18 ` [PATCH 3/3] ti-tscadc-dt: Create ti-tscadc-dt " Pantelis Antoniou
2012-11-01 18:50 [PATCH 0/3] capebus moving omap_devices to mach-omap2 Jason Kridner
2012-11-01 19:07 ` Tony Lindgren
2012-11-02 9:26 ` Cousson, Benoit
2012-11-02 9:26 ` Cousson, Benoit
2012-11-02 10:19 ` Koen Kooi
2012-11-02 10:19 ` Koen Kooi
2012-11-05 0:32 ` Grant Likely
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