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    Subject[15/66] intel_idle: do not use the LAPIC timer for ATOM C2
    2.6.36-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Len Brown <len.brown@intel.com>

    commit c25d29952b2a8c9aaf00e081c9162a0e383030cd 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>

    ---
    drivers/idle/intel_idle.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/idle/intel_idle.c
    +++ b/drivers/idle/intel_idle.c
    @@ -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



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