From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"lenb@kernel.org" <lenb@kernel.org>,
"hdegoede@redhat.com" <hdegoede@redhat.com>,
"tj@kernel.org" <tj@kernel.org>, "arnd@arndb.de" <arnd@arndb.de>,
"mjg59@srcf.ucam.org" <mjg59@srcf.ucam.org>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
"hanjun.guo@linaro.org" <hanjun.guo@linaro.org>,
"al.stone@linaro.org" <al.stone@linaro.org>,
"graeme.gregory@linaro.org" <graeme.gregory@linaro.org>,
"Duran, Leo" <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>,
Lv Zheng <lv.zheng@intel.com>
Subject: Re: [V3 PATCH 1/2] ACPI / scan: Add support for ACPI _CLS device matching
Date: Thu, 12 Feb 2015 12:51:39 +0200 [thread overview]
Message-ID: <20150212105139.GE1561@lahna.fi.intel.com> (raw)
In-Reply-To: <D101F3FB.108F7%suravee.suthikulpanit@amd.com>
On Wed, Feb 11, 2015 at 10:35:25PM +0000, Suthikulpanit, Suravee wrote:
> >> Besides, how do you support modules with this? Or did I miss something?
> >
> >Good question.
>
> Ah. I didn¹t think about this part earlier.
>
> IIUC, the current ACPI driver would create modules.alias entry with format:
> acpi:<HID>:<CID>
>
> What do you think if we append the _CLS of the device using the following
> format:
> acpi:<HID>:<CID>:<CLS>
>
> In case of PCI_CLASS_STORAGE_SATA_AHCI, this would become:
> acpi:::0x10601
Note, that you can have multiple _CIDs, in other words it may look like:
acpi:<HID>:<CID0>:<CID1>:<CLS>
In which case I'm not sure how to match the class. Perhaps use something
else than ':' as a separator for class?
BTW, should we add class_mask as well (like PCI does) so that drivers
can match part of the class id?
next prev parent reply other threads:[~2015-02-12 10:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-08 16:20 [V3 PATCH 0/2] Introduce ACPI support for ahci_platform driver Suravee Suthikulpanit
2015-02-08 16:20 ` [V3 PATCH 1/2] ACPI / scan: Add support for ACPI _CLS device matching Suravee Suthikulpanit
2015-02-08 23:02 ` Rafael J. Wysocki
2015-02-08 23:36 ` Greg Kroah-Hartman
2015-02-09 11:15 ` Mika Westerberg
2015-02-09 21:02 ` Suthikulpanit, Suravee
2015-02-10 9:59 ` Mika Westerberg
2015-02-10 15:07 ` Rafael J. Wysocki
2015-02-11 22:35 ` Suthikulpanit, Suravee
2015-02-12 10:51 ` Mika Westerberg [this message]
2015-02-08 16:20 ` [V3 PATCH 2/2] ata: ahci_platform: Add ACPI _CLS matching Suravee Suthikulpanit
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