watchdog: hpwdt (7/12): allow full range of timer values supported by hardware
The hpwdt timer is a 16 bit value with 128ms resolution. Let applications use this entire range. Signed-off-by: dann frazier <dannf@hp.com> Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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@ -36,6 +36,8 @@
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#define HPWDT_VERSION "1.1.1"
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#define SECS_TO_TICKS(secs) ((secs) * 1000 / 128)
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#define TICKS_TO_SECS(ticks) ((ticks) * 128 / 1000)
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#define HPWDT_MAX_TIMER TICKS_TO_SECS(65535)
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#define DEFAULT_MARGIN 30
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static unsigned int soft_margin = DEFAULT_MARGIN; /* in seconds */
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@ -432,8 +434,7 @@ static void hpwdt_ping(void)
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static int hpwdt_change_timer(int new_margin)
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{
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/* Arbitrary, can't find the card's limits */
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if (new_margin < 5 || new_margin > 600) {
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if (new_margin < 1 || new_margin > HPWDT_MAX_TIMER) {
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printk(KERN_WARNING
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"hpwdt: New value passed in is invalid: %d seconds.\n",
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new_margin);
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