Messages in this thread | | | Date | Thu, 27 Feb 2014 22:44:03 -0500 | Subject | Re: [PATCH] intel_idle: Add CPU model 54 (Atom N2000 series) | From | Len Brown <> |
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Applied.
Note that the difference that will be noticed most will be that ACPI on this kind of box typically offers the deepest C-state only when on DC, and disables it on DC. intel_idle offers it no matter if the box is on AC or DC.
thanks, -Len Brown, Intel Open Source Technology Center
On Sat, Jan 25, 2014 at 4:24 PM, Jan Kiszka <jan.kiszka@web.de> wrote: > From: Jan Kiszka <jan.kiszka@siemens.com> > > Add CPU ID for Atom N2600/N2800 processors. Datasheets indicate support > for this, detailed information about potential quirks or limitations are > missing, though. So we just reuse the definition for the previous ATOM > series. Tests on N2800 systems showed that this addition is fine an can > reduce power consumption by about 0.25 W (personally confirmed on Intel > DN2800MT). > > Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> > --- > drivers/idle/intel_idle.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c > index 797ed29..6467fc9 100644 > --- a/drivers/idle/intel_idle.c > +++ b/drivers/idle/intel_idle.c > @@ -503,6 +503,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { > ICPU(0x2f, idle_cpu_nehalem), > ICPU(0x2a, idle_cpu_snb), > ICPU(0x2d, idle_cpu_snb), > + ICPU(0x36, idle_cpu_atom), > ICPU(0x3a, idle_cpu_ivb), > ICPU(0x3e, idle_cpu_ivb), > ICPU(0x3c, idle_cpu_hsw), > >
-- Len Brown, Intel Open Source Technology Center
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