From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: ACPI vs DT at runtime
Date: Thu, 21 Nov 2013 19:33:02 +0100 [thread overview]
Message-ID: <201311211933.03106.arnd@arndb.de> (raw)
In-Reply-To: <20131121175822.GA9590@quad.lixom.net>
On Thursday 21 November 2013, Olof Johansson wrote:
> On Thu, Nov 21, 2013 at 04:29:44PM +0000, Grant Likely wrote:
>
> > We are pushing a lot of boundaries and doing things on ACPI that have
> > never been done before. SPI, GPIOs, Clocks, Regulators, composite
> > devices, key-value properties. All brand new territory, and the Linux
> > world is driving a lot of it.
>
> This is a bit of a surprise and a significant concern.
>
> The whole point behind ACPI is that it's supposed to abstract away nearly
> all of that, and not expose clocks, regulators and other things to
> the kernel. If we're going to expose it, then we might as well go all
> the way and do it with DT.
I think you are talking about different things here: Grant's example was
about embedded x86 adding these so they can reuse the kernel infrastructure
we already have without changing their entire firmware, which I think is
fine, but he also said in the past that we wouldn't have that on PC-style
ARM servers. Other people are pushing for that though (for SoC-style
ARM servers I suppose), as Russell mentioned earlier.
Arnd
next prev parent reply other threads:[~2013-11-21 18:33 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-15 1:44 ACPI vs DT at runtime Olof Johansson
2013-11-15 9:57 ` Mark Rutland
[not found] ` <20131115175241. GB27174@quad.lixom.net>
2013-11-15 17:52 ` Olof Johansson
2013-11-15 18:08 ` Russell King - ARM Linux
2013-11-15 18:42 ` Olof Johansson
2013-11-15 19:56 ` Arnd Bergmann
2013-11-15 23:21 ` Russell King - ARM Linux
2013-11-18 15:05 ` Arnd Bergmann
2013-11-18 15:19 ` Russell King - ARM Linux
2013-11-18 15:46 ` Arnd Bergmann
2013-11-21 16:11 ` Grant Likely
2013-11-21 16:10 ` Grant Likely
2013-11-21 18:26 ` Arnd Bergmann
2013-11-21 19:40 ` Mark Brown
2013-11-21 16:00 ` Grant Likely
2013-11-15 18:13 ` David Goodenough
2013-11-21 16:15 ` Grant Likely
2013-11-18 17:47 ` Jon Masters
2013-11-19 11:30 ` Mark Rutland
2013-11-19 11:35 ` Mark Rutland
2013-11-19 11:51 ` Leif Lindholm
2013-11-19 11:57 ` Russell King - ARM Linux
2013-11-19 13:56 ` Stefano Stabellini
2013-11-19 14:38 ` Mark Rutland
2013-11-19 14:59 ` Leif Lindholm
2013-11-19 18:23 ` Olof Johansson
2013-11-19 14:05 ` Arnd Bergmann
2013-11-19 15:21 ` Mark Rutland
2013-11-19 16:19 ` Arnd Bergmann
2013-11-19 18:34 ` Olof Johansson
2013-11-19 19:06 ` Tom Rini
2013-11-19 18:19 ` Olof Johansson
2013-11-21 16:37 ` Grant Likely
2013-11-21 16:29 ` Grant Likely
2013-11-21 17:01 ` Matthew Garrett
2013-11-21 18:38 ` Grant Likely
2013-11-21 17:58 ` Olof Johansson
2013-11-21 18:19 ` Matthew Garrett
2013-11-21 18:33 ` Arnd Bergmann [this message]
2013-11-21 18:54 ` Russell King - ARM Linux
[not found] ` < CAOesGMgzUSMDy99XojipfRd5OM88UhfbCYO0aoc5m-Q8Fwnddg@mail.gmail.com>
[not found] ` < 20131121190126.GZ16735@n2100.arm.linux.org.uk>
2013-11-21 18:59 ` Olof Johansson
2013-11-21 19:01 ` Russell King - ARM Linux
2013-11-21 19:31 ` Olof Johansson
2013-11-21 20:44 ` Grant Likely
2013-11-21 18:53 ` Mark Brown
2013-11-15 18:28 ` Jason Gunthorpe
2013-11-15 18:57 ` Arnd Bergmann
2013-11-18 5:19 ` Jon Masters
2013-11-18 5:26 ` Jon Masters
2013-11-18 19:25 ` Olof Johansson
2013-11-18 20:43 ` Jon Masters
2013-11-18 21:25 ` Olof Johansson
2013-11-18 7:22 ` Richard Cochran
2013-11-18 13:55 ` Stefano Stabellini
2013-11-18 15:00 ` Mark Brown
2013-11-18 19:13 ` Olof Johansson
2013-11-19 9:12 ` Richard Cochran
2013-11-19 18:48 ` Olof Johansson
2013-11-20 6:40 ` Richard Cochran
2013-11-21 18:16 ` Grant Likely
2013-11-21 19:21 ` Russell King - ARM Linux
2013-11-21 20:47 ` Grant Likely
2013-11-22 11:43 ` Catalin Marinas
2013-11-22 12:00 ` Pantelis Antoniou
2014-05-05 7:06 ` Alexander Holler
2014-05-05 14:41 ` Arnd Bergmann
2014-05-05 15:29 ` Alexander Holler
2014-05-05 17:29 ` Arnd Bergmann
2014-05-06 15:37 ` Grant Likely
2014-05-06 15:27 ` Grant Likely
2014-05-06 16:32 ` Olof Johansson
2013-11-18 15:28 ` Rob Herring
2013-11-18 19:09 ` Olof Johansson
2013-11-18 20:54 ` Jon Masters
2013-11-18 21:50 ` Olof Johansson
2013-11-18 21:32 ` Grant Likely
2013-11-18 22:47 ` David Goodenough
2013-11-19 12:48 ` Arnd Bergmann
2013-11-19 13:34 ` David Goodenough
2013-11-19 16:52 ` Arnd Bergmann
2013-11-21 18:23 ` Grant Likely
2013-11-19 14:33 ` Grant Likely
2013-11-20 13:49 ` Grant Likely
2013-11-20 17:43 ` Stefano Stabellini
2013-11-20 17:47 ` Olof Johansson
2013-11-15 20:58 ` Arnd Bergmann
2013-11-15 21:44 ` Olof Johansson
2013-11-17 17:18 ` Stefano Stabellini
2013-11-17 18:10 ` Arnd Bergmann
[not found] ` < CAOesGMiYyOcvr3Aqs-p8zc=XDwJM9NZtNxtxrTZssc6F=siZCw@mail.gmail.com>
2013-11-17 22:20 ` Olof Johansson
2013-11-18 8:45 ` Arnd Bergmann
2013-11-18 17:33 ` Jon Masters
2013-11-18 17:38 ` Russell King - ARM Linux
2013-11-18 19:21 ` Olof Johansson
2013-11-21 18:26 ` Grant Likely
2013-11-18 15:04 ` Mark Brown
2013-11-18 15:10 ` Arnd Bergmann
2013-11-18 21:38 ` Grant Likely
2013-11-18 23:25 ` Leif Lindholm
2013-11-18 23:29 ` Olof Johansson
2013-11-18 23:34 ` Leif Lindholm
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