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Date: Mon, 03 Mar 2014 21:50:14 +0800
From: Zhang Rui <rui.zhang@...el.com>
To: Matthew Garrett <matthew.garrett@...ula.com>
Cc: "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>
Subject: Re: [RFC PATCH 0/8] ACPI: change the way of enumerating
PNPACPI/Platform devices
On Wed, 2014-02-26 at 16:47 +0000, Matthew Garrett wrote:
> 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.
>
thanks for your comments, Matthew.
thanks,
rui
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