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

[Len Brown]

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@xxxxxx> wrote:
> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
>
> 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@xxxxxxxxxxx>
> ---
>  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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