From: Matthew Garrett <matthew.garrett@nebula.com>
To: "rui.zhang@intel.com" <rui.zhang@intel.com>
Cc: "dmitry.torokhov@gmail.com" <dmitry.torokhov@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"rafael.j.wysocki@intel.com" <rafael.j.wysocki@intel.com>
Subject: Re: [RFC PATCH 0/8] ACPI: change the way of enumerating PNPACPI/Platform devices
Date: Wed, 26 Feb 2014 16:47:48 +0000 [thread overview]
Message-ID: <1393433267.14900.3.camel@x230> (raw)
In-Reply-To: <1393405874-3266-1-git-send-email-rui.zhang@intel.com>
On Wed, 2014-02-26 at 17:11 +0800, Zhang Rui wrote:
> 1. without the patch, the acpi_platform scan handler white list is
> continuously growing.
> 2. with the patch set, the PNPACPI scan handler white list will become
> smaller and smaller by
> a) remove the ids from the PNPACPI white list, for the devices
> that are never enumerated via ACPI
> b) remove the ids from the PNPACPI whilte list and convert the drivers to
> platform bus drivers, for the devices that are not PNP devices in nature.
> which will be done later.
I agree that this is the right direction to go in. The number of acpipnp
devices that are also pnpbios or (even worse) isapnp is (a) unlikely to
increase, and (b) *very* small, and pretty much limited to superio and a
small number of sound cards on old laptops. We may come up with a better
solution for them later, but right now shifting away from requiring that
every new ACPI device driver also bump a whitelist is an improvement.
--
Matthew Garrett <matthew.garrett@nebula.com>
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Garrett <matthew.garrett@nebula.com>
To: "rui.zhang@intel.com" <rui.zhang@intel.com>
Cc: "dmitry.torokhov@gmail.com" <dmitry.torokhov@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"rafael.j.wysocki@intel.com" <rafael.j.wysocki@intel.com>
Subject: Re: [RFC PATCH 0/8] ACPI: change the way of enumerating PNPACPI/Platform devices
Date: Wed, 26 Feb 2014 16:47:48 +0000 [thread overview]
Message-ID: <1393433267.14900.3.camel@x230> (raw)
In-Reply-To: <1393405874-3266-1-git-send-email-rui.zhang@intel.com>
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 1198 bytes --]
On Wed, 2014-02-26 at 17:11 +0800, Zhang Rui wrote:
> 1. without the patch, the acpi_platform scan handler white list is
> continuously growing.
> 2. with the patch set, the PNPACPI scan handler white list will become
> smaller and smaller by
> a) remove the ids from the PNPACPI white list, for the devices
> that are never enumerated via ACPI
> b) remove the ids from the PNPACPI whilte list and convert the drivers to
> platform bus drivers, for the devices that are not PNP devices in nature.
> which will be done later.
I agree that this is the right direction to go in. The number of acpipnp
devices that are also pnpbios or (even worse) isapnp is (a) unlikely to
increase, and (b) *very* small, and pretty much limited to superio and a
small number of sound cards on old laptops. We may come up with a better
solution for them later, but right now shifting away from requiring that
every new ACPI device driver also bump a whitelist is an improvement.
--
Matthew Garrett <matthew.garrett@nebula.com>
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next prev parent reply other threads:[~2014-02-26 16:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-26 9:11 [RFC PATCH 0/8] ACPI: change the way of enumerating PNPACPI/Platform devices Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 1/8] ACPI: introduce .match() callback for ACPI scan handler Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 2/8] PNPACPI: use whilte list for pnpacpi device enumeration Zhang Rui
2014-03-07 1:44 ` Rafael J. Wysocki
2014-03-09 5:29 ` Zhang Rui
2014-03-09 17:49 ` Rafael J. Wysocki
2014-03-10 2:24 ` Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 3/8] PNPACPI: remove ids that does not comply with the ACPI PNP id rule Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 4/8] PNPACPI: remove unsupported serial PNP ids from PNPACPI id list Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 5/8] PNPACPI: check and enumerate CMOS RTC devices explicitly Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 6/8] ACPI: use platform bus as the default bus for _HID enumeration Zhang Rui
2014-03-02 23:51 ` Rafael J. Wysocki
2014-03-03 14:11 ` Zhang Rui
2014-03-03 23:23 ` Rafael J. Wysocki
2014-03-04 0:27 ` Zhang, Rui
2014-03-04 0:27 ` Zhang, Rui
2014-03-04 0:35 ` Rafael J. Wysocki
2014-03-07 1:46 ` Rafael J. Wysocki
2014-03-09 5:33 ` Zhang Rui
2014-03-09 17:50 ` Rafael J. Wysocki
2014-03-09 15:50 ` Zhang Rui
2014-03-09 18:04 ` Rafael J. Wysocki
2014-03-10 2:44 ` Zhang Rui
2014-03-10 2:45 ` Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 7/8] Revert "ACPI / PNP: skip ACPI device nodes associated with physical nodes already" Zhang Rui
2014-02-26 9:11 ` [RFC PATCH 8/8] PNPACPI: create both PNP and Platform device nodes for PNP0C01/PNP0C02 Zhang Rui
2014-03-03 14:17 ` Zhang Rui
2014-03-03 16:17 ` Bjorn Helgaas
2014-02-26 16:47 ` Matthew Garrett [this message]
2014-02-26 16:47 ` [RFC PATCH 0/8] ACPI: change the way of enumerating PNPACPI/Platform devices Matthew Garrett
2014-03-03 13:50 ` Zhang Rui
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