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authorLen Brown <len.brown@intel.com>2010-10-23 23:25:53 -0400
committerLen Brown <len.brown@intel.com>2010-10-26 15:45:17 -0400
commitc25d29952b2a8c9aaf00e081c9162a0e383030cd (patch)
tree8265cf39b244db917b56f31bfbb0c1452c465e7d /drivers/idle/intel_idle.c
parent00527cc6bbcac05ab7d54c40bda1ff2a0625ab10 (diff)
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intel_idle: do not use the LAPIC timer for ATOM C2
If we use the LAPIC timer during ATOM C2 on some nvidia chisets, the system stalls. https://bugzilla.kernel.org/show_bug.cgi?id=21032 Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/idle/intel_idle.c')
-rw-r--r--drivers/idle/intel_idle.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index d310590598f..b68d594b843 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -302,7 +302,7 @@ static int intel_idle_probe(void)
case 0x1C: /* 28 - Atom Processor */
case 0x26: /* 38 - Lincroft Atom Processor */
- lapic_timer_reliable_states = (1 << 2) | (1 << 1); /* C2, C1 */
+ lapic_timer_reliable_states = (1 << 1); /* C1 */
cpuidle_state_table = atom_cstates;
break;