From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Mark Brown <broonie@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
linaro-acpi@lists.linaro.org,
Catalin Marinas <catalin.marinas@arm.com>,
Graeme Gregory <gg@slimlogic.co.uk>,
Liviu Dudau <Liviu.Dudau@arm.com>, Lv Zheng <lv.zheng@intel.com>,
Rob Herring <robh@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Robert Moore <robert.moore@intel.com>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
Robert Richter <rric@kernel.org>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <Marc.Zyngier@arm.com>,
Will Deacon <Will.Deacon@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Randy Dunlap <rdunlap@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Olof Johansson <olof@lixom.net>,
Darren Hart <dvhart@linux.intel.com>
Subject: Re: [Linaro-acpi] [RFC PATCH for Juno 1/2] net: smsc911x add support for probing from ACPI
Date: Wed, 03 Sep 2014 01:00:23 +0200 [thread overview]
Message-ID: <2913007.3xRNb2X4ts@vostro.rjw.lan> (raw)
In-Reply-To: <20140902162606.GX29327@sirena.org.uk>
On Tuesday, September 02, 2014 05:26:06 PM Mark Brown wrote:
>
> --s3puAW9DMBtS2ARW
> Content-Type: text/plain; charset=us-ascii
> Content-Disposition: inline
>
> On Tue, Sep 02, 2014 at 03:42:53PM +0200, Arnd Bergmann wrote:
>
> > The way I recall the discussion, most people were on one extreme
> > side of the discussion or the other:
>
> > a) We should use _DSD for ARM64 servers to maximize code reuse with
> > DT-enabled drivers, work around the slow UEFI standardization process,
> > remain in control of the actual bindings, and avoid the need for
> > endless per-ID platform-data definitions in drivers.
>
> > b) We should never use _DSD at all, since doing that would have no
> > advantage over using DT directly, and we should force every device
> > manufacturer to specify their bindings in an official ACPI document
> > to prevent random incompatible bindings from being established.
> > Any device that shows up in servers should not need arbitrary detailed
> > properties anyway, as the details are supposed to be hidden in AML.
>
> > I can understand the reasons for both approaches, and I find it hard
> > to say either one is invalid. However, the worst possible outcome in
> > my opinion would be having to support a mix of the two.
>
> Right, and the x86 embedded folks are going full steam ahead with _DSD
> regardless so it seems there will be some systems out there using it
> even if they're not ARM servers.
Our intention is specifically not to use "random incompatible bindings"
in that. We'd rather have a common venue and process for establishing
new bindings for both DT and _DSD in a compatible way.
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
next prev parent reply other threads:[~2014-09-02 22:41 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-01 15:05 [RFC PATCH for Juno 0/2] Drivers for Juno to boot from ACPI Hanjun Guo
2014-09-01 15:06 ` [RFC PATCH for Juno 1/2] net: smsc911x add support for probing " Hanjun Guo
2014-09-01 15:17 ` [Linaro-acpi] " Arnd Bergmann
2014-09-01 15:28 ` Graeme Gregory
2014-09-01 15:32 ` Arnd Bergmann
2014-09-01 16:53 ` Catalin Marinas
2014-09-01 16:58 ` Mark Brown
2014-09-01 17:08 ` Sudeep Holla
2014-09-01 17:14 ` Catalin Marinas
2014-09-01 17:33 ` Sudeep Holla
2014-09-01 17:03 ` Graeme Gregory
2014-09-15 4:08 ` Grant Likely
2014-09-15 9:24 ` Catalin Marinas
2014-09-01 17:04 ` Catalin Marinas
2014-09-01 17:11 ` Arnd Bergmann
2014-09-01 17:27 ` Catalin Marinas
2014-09-01 17:32 ` Graeme Gregory
2014-09-01 18:11 ` Mark Brown
2014-09-02 13:26 ` Catalin Marinas
2014-09-02 13:42 ` [Linaro-acpi] " Arnd Bergmann
2014-09-02 16:26 ` Mark Brown
2014-09-02 23:00 ` Rafael J. Wysocki [this message]
2014-09-03 15:09 ` Arnd Bergmann
2014-09-09 6:51 ` Jon Masters
2014-09-15 4:14 ` Grant Likely
2014-09-15 16:12 ` Mark Brown
2014-09-01 15:06 ` [RFC PATCH for Juno 2/2] tty: SBSA compatible UART Hanjun Guo
2014-09-01 15:26 ` Mark Brown
2014-09-01 17:12 ` Catalin Marinas
2014-09-01 17:18 ` Graeme Gregory
2014-09-01 17:29 ` Catalin Marinas
2014-09-01 15:29 ` [RFC PATCH for Juno 0/2] Drivers for Juno to boot from ACPI Arnd Bergmann
2014-09-09 6:55 ` Jon Masters
2014-09-09 10:55 ` Arnd Bergmann
2014-09-09 14:13 ` Jon Masters
2014-09-15 22:57 ` Grant Likely
2014-09-15 23:00 ` Jon Masters
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