From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
lenb@kernel.org, linux-acpi@vger.kernel.org
Subject: Re: shpc with acpi=off?
Date: Thu, 23 Feb 2012 08:48:13 -0800 [thread overview]
Message-ID: <20120223084813.39908d81@jbarnes-desktop> (raw)
In-Reply-To: <20120216150421.GA26167@redhat.com>
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On Thu, 16 Feb 2012 17:04:22 +0200
"Michael S. Tsirkin" <mst@redhat.com> wrote:
> I have a box where shpc works fine with acpi,
> as well as when acpi is not built into kernel,
> but fails with acpi=off
> Some debugging seems to indicate that
> acpi_get_hp_hw_control_from_firmware
> fails with acpi=off.
>
> Is this a bug or is there a reason to prevent shpc
> from working in this setup?
> Do we even care about acpi=off?
> Assuming we want to make acpi_get_hp_hw_control_from_firmware
> succeed with acpi=off, what is the best way to do this?
> Check acpi_pci_disabled?
Yeah not sure it's important to have SHPC work with acpi=off.
Disabling ACPI prevents us from getting all sorts of important info
these days...
--
Jesse Barnes, Intel Open Source Technology Center
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prev parent reply other threads:[~2012-02-23 16:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 15:04 shpc with acpi=off? Michael S. Tsirkin
2012-02-23 16:48 ` Jesse Barnes [this message]
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