Re: [PATCH] x86/hpet: setup HPET even when disabled due to stopping in deep C states

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Roger Pau Monne writes ("[PATCH] x86/hpet: setup HPET even when disabled due to 
stopping in deep C states"):
> Always allow the HPET to be setup, but don't report a frequency back
> to the platform time source probe in order to avoid it from being
> selected as a valid timer if it's not usable.
> 
> Doing the setup even when not intended to be used as a platform timer
> is required so that is can be used in legacy replacement mode in order
> to assert the IO-APIC is capable of receiving interrupts.
> 
> Fixes: c12731493a ('x86/hpet: Use another crystalball to evaluate HPET 
> usability')
> Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>