From: Matthew Garrett <mjg@redhat.com>
To: yakui_zhao <yakui.zhao@intel.com>
Cc: lenb@kernel.org, linux-acpi@vger.kernel.org
Subject: Re: [PATCH]: ACPI: Add the dmi check to make acpi_enforce_resources strict
Date: Tue, 10 Mar 2009 12:39:50 +0000 [thread overview]
Message-ID: <20090310123950.GA30016@srcf.ucam.org> (raw)
In-Reply-To: <1236687873.7060.31.camel@localhost.localdomain>
On Tue, Mar 10, 2009 at 08:24:33PM +0800, yakui_zhao wrote:
> Subject: ACPI: Add the dmi check to make acpi_enforce_resources strict
> From: Zhao Yakui <yakui.zhao@intel.com>
>
> On some boxes the SMBus PCI controller is not hidden. The SMbus I/O port
> will be accessed in AML code. If the i2c driver is still loaded for the SMbus
> PCI device, there is no synchronization between OS and BIOS. And the conflict
> will happen.
> So the dmi check is added so that the acpi_enforce_resources is strict when
> the box falls into the dmi check table. In such case the i2c driver won't be
> loaded for the SMbus pci device.
I think the only safe behaviour here is to default to strict on all
hardware.
--
Matthew Garrett | mjg59@srcf.ucam.org
next parent reply other threads:[~2009-03-10 12:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1236687873.7060.31.camel@localhost.localdomain>
2009-03-10 12:39 ` Matthew Garrett [this message]
2009-03-11 2:34 ` [PATCH]: ACPI: Add the dmi check to make acpi_enforce_resources strict Zhang Rui
2009-04-02 21:18 ` Len Brown
2009-03-10 3:34 yakui_zhao
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