Re: shpc with acpi=off?

[Jesse Barnes]

On Thu, 16 Feb 2012 17:04:22 +0200
"Michael S. Tsirkin" <mst@xxxxxxxxxx> 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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