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SubjectRe: [PATCH] intel_idle: Add CPU model 54 (Atom N2000 series)
From
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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