From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: "Zheng, Lv" <lv.zheng@intel.com>,
"mika.westerberg@linux.intel.com"
<mika.westerberg@linux.intel.com>,
"Moore, Robert" <robert.moore@intel.com>,
"hanjun.guo@linaro.org" <hanjun.guo@linaro.org>,
"lenb@kernel.org" <lenb@kernel.org>,
"hdegoede@redhat.com" <hdegoede@redhat.com>,
"tj@kernel.org" <tj@kernel.org>,
"mjg59@srcf.ucam.org" <mjg59@srcf.ucam.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"al.stone@linaro.org" <al.stone@linaro.org>,
"graeme.gregory@linaro.org" <graeme.gregory@linaro.org>,
"leo.duran@amd.com" <leo.duran@amd.com>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linaro-acpi@lists.linaro.org" <linaro-acpi@lists.linaro.org>
Subject: Re: [V8 PATCH 1/3] ACPICA: Add ACPI _CLS processing
Date: Sat, 25 Apr 2015 04:28:57 +0200 [thread overview]
Message-ID: <1960107.SMA7G3OmSP@vostro.rjw.lan> (raw)
In-Reply-To: <553AB0CF.1010904@amd.com>
On Friday, April 24, 2015 04:08:31 PM Suravee Suthikulpanit wrote:
> On 4/16/15 20:45, Zheng, Lv wrote:
> > Before back porting this to ACPICA, let me ask one simple question.
> > According to the spec, the _CLS is optional and PCI specific.
> > So why should we implement it in ACPICA core not OSPM specific modules?
> > If this need to be implemented in ACPICA, then what about the following device identification objects?
> > _DDN, _HRV, _MLS, _PLD, _STR, _SUN
> >
> > Thanks and best regards
> > -Lv
>
> Hi,
>
> Sorry for late reply. As for the justification for introducing the _CLS
> support in the ACPICA, this is mainly because ACPI does not currently
> define _CID for certain device classes, which used to mostly be PCI
> devices. Instead, ACPI spec mentioned that _CLS can be used for loading
> generic drivers on hardware that is compatible with PCI-defined device
> classes, but that is not implemented on the PCI bus (and is therefore
> enumerated by ACPI.)
I think it would be good to point to the particular part of the spec
making that provision. In what section is that mentioned, exactly?
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
next prev parent reply other threads:[~2015-04-25 2:04 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-30 21:56 [V8 PATCH 0/3] Introduce ACPI support for ahci_platform driver Suravee Suthikulpanit
2015-03-30 21:56 ` [V8 PATCH 1/3] ACPICA: Add ACPI _CLS processing Suravee Suthikulpanit
2015-04-13 13:54 ` Rafael J. Wysocki
2015-04-17 1:45 ` Zheng, Lv
2015-04-17 3:48 ` Moore, Robert
2015-04-24 21:08 ` Suravee Suthikulpanit
2015-04-25 2:28 ` Rafael J. Wysocki [this message]
2015-04-26 22:45 ` Suthikulpanit, Suravee
2015-04-27 20:38 ` Rafael J. Wysocki
2015-04-27 22:18 ` Suravee Suthikulpanit
2015-03-30 21:56 ` [V8 PATCH 2/3] ACPI / scan: Add support for ACPI _CLS device matching Suravee Suthikulpanit
2015-03-30 21:56 ` [V8 PATCH 3/3] ata: ahci_platform: Add ACPI _CLS matching Suravee Suthikulpanit
2015-04-06 15:45 ` [V8 PATCH 0/3] Introduce ACPI support for ahci_platform driver Suravee Suthikulanit
2015-04-23 16:32 ` Suthikulpanit, Suravee
2015-04-23 17:02 ` Rafael J. Wysocki
2015-04-24 20:46 ` Suravee Suthikulpanit
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=1960107.SMA7G3OmSP@vostro.rjw.lan \
--to=rjw@rjwysocki.net \
--cc=Suravee.Suthikulpanit@amd.com \
--cc=al.stone@linaro.org \
--cc=graeme.gregory@linaro.org \
--cc=gregkh@linuxfoundation.org \
--cc=hanjun.guo@linaro.org \
--cc=hdegoede@redhat.com \
--cc=lenb@kernel.org \
--cc=leo.duran@amd.com \
--cc=linaro-acpi@lists.linaro.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lv.zheng@intel.com \
--cc=mika.westerberg@linux.intel.com \
--cc=mjg59@srcf.ucam.org \
--cc=robert.moore@intel.com \
--cc=tj@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).