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    Subject[patch-mm 08/25] i386: PIT stop only, when in periodic or oneshot mode
    The patch is necessary on one of my boxen, where programming the stop
    sequence twice leads to PIT malfunction.

    Sigh !

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    ---
    arch/i386/kernel/i8253.c | 9 ++++++---
    1 file changed, 6 insertions(+), 3 deletions(-)

    Index: linux-2.6.22-rc4-mm/arch/i386/kernel/i8253.c
    ===================================================================
    --- linux-2.6.22-rc4-mm.orig/arch/i386/kernel/i8253.c 2007-06-16 12:10:23.000000000 +0200
    +++ linux-2.6.22-rc4-mm/arch/i386/kernel/i8253.c 2007-06-16 12:10:23.000000000 +0200
    @@ -48,9 +48,12 @@ static void init_pit_timer(enum clock_ev

    case CLOCK_EVT_MODE_SHUTDOWN:
    case CLOCK_EVT_MODE_UNUSED:
    - outb_p(0x30, PIT_MODE);
    - outb_p(0, PIT_CH0); /* LSB */
    - outb_p(0, PIT_CH0); /* MSB */
    + if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
    + evt->mode == CLOCK_EVT_MODE_ONESHOT) {
    + outb_p(0x30, PIT_MODE);
    + outb_p(0, PIT_CH0);
    + outb_p(0, PIT_CH0);
    + }
    break;

    case CLOCK_EVT_MODE_ONESHOT:
    --

    -
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