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SubjectRe: [PATCH v2] acpi: Fix regression where _PPC is not read at boot even when ignore_ppc=0

* Thomas Renninger <trenn@suse.de> wrote:

> The *reevaluate* implies that the _PPC value has been
> evaluated/initialized by the OS already and Ingo's patch would be
> wrong then. I'd like to have a look at the T60's ACPI parts and
> find out what exactly (or if at all) makes _PPC to return sane
> values, I expect it's _PDC.
>
> Hmm, I could also imagine that Ingo's T60 patch is not needed
> anymore since Yakui's patch
> (0ac3c571315a53c14d2733564f14ebdb911fe903). This one could make
> sure that _PDC is evaluated first making the internal ACPI _PPC
> state initialize and makes sure _PPC gets only called afterwards.
>
> If this patch does not break Ingo's T60, I think this should go
> in. Due to Yakui's reordering/cleanup of ACPI function calls, I
> think also the notifier chain I introduced is not needed anymore
> and I can clean this up if I find some time.

Feel free to do so, if it's expected to work. I'll let you know if
it breaks the T60 box - i still have it in the -tip test mix.

Acked-by: Ingo Molnar <mingo@elte.hu>

Ingo


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