intel_idle: Add CPU model 54 (Atom N2000 series)

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>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index aeddfc46c831a4946d55711d7f948d7825607b40..710ab54ab04b83f6a76a75e6ffacc421104e1097 100644 (file)
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -546,6 +546,7 @@ 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(0x37, idle_cpu_byt),
        ICPU(0x3a, idle_cpu_ivb),
        ICPU(0x3e, idle_cpu_ivb),