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intel_idle: do not use the LAPIC timer for ATOM C2

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commit c25d29952b upstream.

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>
Cc: Tom Gundersen <teg@jklm.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Len Brown
2010-10-23 23:25:53 -04:00
committed by Greg Kroah-Hartman
parent 63b6282442
commit c45649ade8
1 changed files with 1 additions and 1 deletions
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2
drivers/idle/intel_idle.c
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@@ -276,7 +276,7 @@ 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;
#ifdef FUTURE_USE